OJ Board

Posted: **Wed Feb 27, 2013 11:25 pm**

On the sample input:
Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 7
at java.lang.String.charAt(Unknown Source)
at Main.main(Main.java:452)

Use the code blocks when posting code.

Posted: **Thu Feb 28, 2013 12:04 am**

Sir but i checked the sample input for many times in java compiler.......besides i cannot understand if ""Each board will consist of 8 lines of 8 characters each"" is written in the question then
how it becomes "Run Time Error"...
please Sir make me Understand..........

Posted: **Fri Mar 01, 2013 2:49 am**

There will be an empty line between each pair of board configurations.
https://ideone.com/JIGeEz

Posted: **Sat Mar 02, 2013 12:01 am**

thanks GURU ...

i edited my code but i got now
"Wrong Answer"!!!!!!!
can you please give me some critical input output....

Posted: **Mon Mar 04, 2013 11:18 pm**

Use class Main.
http://uva.onlinejudge.org/index.php?op ... &Itemid=30

Use the code blocks when posting code. Look for the "Code" button in the text box.

Posted: **Tue Mar 05, 2013 9:58 pm**

sorry sir :@brain fry
when i sumitted i wrote Main
but its Wrong Ansrwer
can u please give me some critical inputs outputs

Posted: **Tue Mar 05, 2013 10:36 pm**

CodeMaker wrote:Here i give you some input output, you can check with them...

intputs:

Code: Select all

K......k
........
........
........
........
........
........
.......b

K......k
........
..p.....
........
........
........
........
.......b

Kp.....k
prn.....
..p.....
........
........
........
........
.......b

K..R...k
........
..p.....
........
........
........
........
.......b

K.pr...k
b....q..
..p..nn.
........
..b.....
........
........
bq.....b

K..RB..k
.....R.P
..p.....
.......Q
........
........
........
.......b

......B.
........
..p.....
........
..Kpk..r
........
........
.......b

......P.
...K.k..
..p.....
........
........
........
........
.......b

........
...K....
pppppppp
..n.n...
........
........
.k......
.......b

........
...K....
pppppppp
........
........
........
k.......
.......b

........
........
........
........
........
........
........
........

outputs:

Code: Select all

Game #1: white king is in check.
Game #2: no king is in check.
Game #3: white king is in check.
Game #4: black king is in check.
Game #5: no king is in check.
Game #6: no king is in check.
Game #7: no king is in check.
Game #8: no king is in check.
Game #9: white king is in check.
Game #10: no king is in check.

Posted: **Tue Mar 05, 2013 10:36 pm**

Here is your code inside code blocks

Code: Select all

import java.io.*;
import java.util.*;
public class Main{
static boolean Blacking(int c , int t , String [] [] y){
int counter = 0;
int first = c,second = t;
int done = 0;
while(second<8)
{
if(y[first][second].equals("R") || y[first][second].equals("Q"))
{
done = 1;
break;
}
second++;
}
first = c;
second = t;
while(second>=0 && done ==0)
{
if(y[first][second].equals("R")||y[first][second].equals("Q"))
{
done = 1;
break;
}
second--;
}
first = c;
second = t;
while(first<8 && done ==0)
{
if(y[first][second].equals("R")||y[first][second].equals("Q"))
{
done = 1;
break;
}
first++;
}
first = c;
second = t;
while(first>=0 && done ==0)
{
if(y[first][second].equals("R")||y[first][second].equals("Q"))
{
done = 1;
break;
}
first--;
}
first = c;
second = t;
while(second<8 && first<8 && done ==0)
{
if(y[first][second].equals("Q")||y[first][second].equals("R"))
{
done = 1;
break;
}
first++;
second++;
}
first = c;
second = t;
while(second>=0 && first<8&& done ==0)
{
if(y[first][second].equals("Q")||y[first][second].equals("B"))
{
done = 1;
break;
}
first++;
second--;
}
first = c;
second = t;
while(second>=0 && first>=0 && done ==0)
{
if(y[first][second].equals("Q")||y[first][second].equals("B"))
{
done = 1;
break;
}
first--;
second--;
}
first = c;
second = t;
while(second<8 && first>=0 && done ==0)
{
if(y[first][second].equals("Q")||y[first][second].equals("B"))
{
done = 1;
break;
}
first--;
second++;
}
first = c;
second = t;
counter = 0;
while(first<8 && second<8 && done ==0 && counter<2)
{
if(y[first][second].equals("N"))
{
done = 1;
break;
}
first += 2;
second++;
counter++;
}
first = c;
second = t;
counter = 0;
while(first<8 && second>=0 && counter<2 && done==0)
{
if(y[first][second].equals("N"))
{
done = 1;
break;
}
first += 2;
second--;
counter++;
}
first = c;
second = t;
counter = 0;
while(first>=0 && second>=0 && done==0)
{
if(y[first][second].equals("N"))
{
done = 1;
break;
}
first -= 2;
second--;
counter++;
}
first = c;
second = t;
counter = 0;
while(first>=0 && second<8 && counter<2 && done==0)
{
if(y[first][second].equals("N"))
{
done = 1;
break;
}
first -= 2;
second++;
counter++;
}
first = c;
second = t;
counter = 0;
while(first<8 && second<8 && counter<2 && done==0)
{
if(y[first][second].equals("N"))
{
done = 1;
break;
}
first++;
second +=2;
counter++;
}
first = c;
second = t;
counter = 0;
while(first<8 && second>=0 && counter<2 && done==0)
{
if(y[first][second].equals("N"))
{
done = 1;
break;
}
first++;
second -=2;
counter++;
}
first = c;
second = t;
counter = 0;
while(first>=0 && second>=0 && counter<2 && done==0)
{
if(y[first][second].equals("P"))
{
done = 1;
break;
}
first--;
second--;
counter++;
}
first = c;
second = t;
counter = 0;
while(first>=0 && second<8 && counter<2 && done==0)
{
if(y[first][second].equals("P"))
{
done = 1;
break;
}
first--;
second++;
counter++;
}
if(done==1)
{
return true;
}
return false;
}
static boolean WhiteKing(int c , int t , String [] [] y){
int counter = 0;
int done = 0;
int first = c,second = t;
while(second<8 && done==0)
{
if(y[first][second].equals("r") || y[first][second].equals("q"))
{
done = 1;
break;
}
second++;
}
first = c;
second = t;
while(second>=0 && done==0)
{
if(y[first][second].equals("r")||y[first][second].equals("q"))
{
done = 1;
break;
}
second--;
}
first = c;
second = t;
while(first<8 && done ==0)
{
if(y[first][second].equals("r")||y[first][second].equals("q"))
{
done = 1;
break;
}
first++;
}
first = c;
second = t;
while(first>=0 && done==0)
{
if(y[first][second].equals("r")||y[first][second].equals("q"))
{
done = 1;
break;
}
first--;
}
first = c;
second = t;
while(second<8 && first<8 && done==0)
{
if(y[first][second].equals("q")||y[first][second].equals("b"))
{
done = 1;
break;
}
first++;
second++;
}
first = c;
second = t;
while(second>=0 && first<8 && done ==0)
{
if(y[first][second].equals("q")||y[first][second].equals("b"))
{
done = 1;
break;
}
first++;
second--;
}
first = c;
second = t;
while(second>=0 && first>=0 && done ==0)
{
if(y[first][second].equals("q")||y[first][second].equals("b"))
{
done = 1;
break;
}
first--;
second--;
}
first = c;
second = t;
while(second<8 && first>=0 && done == 0)
{
if(y[first][second].equals("q")||y[first][second].equals("b"))
{
done = 1;
break;
}
first--;
second++;
}
first = c;
second = t;
while(first<8 && second<8 && counter<2 && done==0)
{
if(y[first][second].equals("n"))
{
done = 1;
break;
}
first += 2;
second++;
counter++;
}
first = c;
second = t;
counter = 0;
while(first<8 && second>=0 && counter<2 && done==0)
{
if(y[first][second].equals("n"))
{
done = 1;
break;
}
first += 2;
second--;
counter++;
}
first = c;
second = t;
counter = 0;
while(first>=0 && second>=0 && done ==0 && counter<2)
{
if(y[first][second].equals("n"))
{
done = 1;
break;
}
first -= 2;
second--;
counter++;
}
first = c;
second = t;
counter = 0;
while(first>=0 && second<8 && done ==0 && counter<2)
{
if(y[first][second].equals("n"))
{
done = 1;
break;
}
first -= 2;
second++;
counter++;
}
first = c;
second = t;
counter = 0;
while(first<8 && second<8 && counter<2 && done==0)
{
if(y[first][second].equals("n"))
{
done = 1;
break;
}
first++;
second +=2;
counter++;
}
first = c;
second = t;
counter = 0;
while(first<8 && second>=0 && counter<2 && done==0)
{
if(y[first][second].equals("n"))
{
done = 1;
break;
}
first++;
second -=2;
counter++;
}
first = c;
second = t;
counter = 0;
while(first<8 && second>=0 && counter<2 && done==0)
{
if(y[first][second].equals("p"))
{
done = 1;
break;
}
first ++;
second--;
counter++;
}
first = c;
second = t;
counter = 0;
while(first<8 && second<8 && counter<2 && done == 0)
{
if(y[first][second].equals("p"))
{
done = 1;
break;
}
first ++;
second++;
counter++;
}
if(done==1)
{
return true;
}
return false;
}
public static void main(String [] args)throws IOException{
final BufferedReader k = new BufferedReader(new InputStreamReader(System.in));
PrintWriter z = new PrintWriter(System.out);
String [] [] x = new String[8][8];
int i = 1;
String line;
while((line = k.readLine()) != null)
{
boolean B = false,W = false;
String [][] y = new String [8][8];
int c = 0;
int r1 = 7;
while(c<8)
{
int r2 = 0;
int t = 0;
String s = "";
if(c==0)
{
s = line;
}
else
{
s = k.readLine();
}
while(t<8)
{
y[r1][r2] = ""+s.charAt(t);
r2++;
t++;
}
r1--;
c++;
}
c = 0;
int u = 0;
while(c<8)
{
int t = 0;
while(t<8)
{
if(!(y[c][t].equals(".")))
{
u = 1;
break;
}
t++;
}
c++;
}
if(u==0)
{
break;
}
else
{
k.readLine();
c = 0;
while(c<8)
{
int t = 0;
while(t<8)
{
if(y[c][t].equals("K"))
{
W = WhiteKing(c,t,y);
if(W)
{
break;
}
}
else if(y[c][t].equals("k"))
{
B = Blacking(c,t,y);
if(B)
{
break;
}
}
t++;
}
c++;
}
if(W)
{
z.println("Game #"+i+": white king is in check.");
i++;
}
else if(B)
{
z.println("Game #"+i+": black king is in check.");
i++;
}
else
{
z.println("Game #"+i+": no king is in check.");
i++;
}
}
}
z.flush();
}
}

Do you agree that's easier to read? You can click one button to select all and then copy it, instead of having to scroll through 529 lines. It will also preserve the indentation.

Always post the code you'd submit.

Posted: **Tue Mar 05, 2013 11:46 pm**

:@ guru brainfry
i am extremely sorry....

i didnt understood what you were talking about...
Now i understand...

and thanks for giving me critical inputs outputs...

Posted: **Wed Mar 06, 2013 7:23 pm**

@Brain fry i tried your all inputs/outputs they were match in my code but still WRONG ANSWER

Code: Select all

import java.io.*;
import java.util.*;
public class Main{
    static boolean Blacking(int c , int t , String [] [] y){
        int counter = 0;
        int first = c,second = t;
        int done = 0;
        while(second<8)
        {
            if(y[first][second].equals("R") || y[first][second].equals("Q"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("k")))
            {
                break;
            }
            second++;
        }
        first = c;
        second = t;
        while(second>=0 && done ==0)
        {
            if(y[first][second].equals("R")||y[first][second].equals("Q"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("k")))
            {
                break;
            }
            second--;
        }
        first = c;
        second = t;
        while(first<8 && done ==0)
        {
            if(y[first][second].equals("R")||y[first][second].equals("Q"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("k")))
            {
                break;
            }
            first++;
        }
        first = c;
        second = t;
        while(first>=0 && done ==0)
        {
            if(y[first][second].equals("R")||y[first][second].equals("Q"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("k")))
            {
                break;
            }
            first--;
        }
        first = c;
        second = t;
        while(second<8 && first<8 && done ==0)
        {
            if(y[first][second].equals("Q")||y[first][second].equals("B"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("k")))
            {
                break;
            }
            first++;
            second++;
        }
        first = c;
        second = t;
        while(second>=0 && first<8&& done ==0)
        {
            if(y[first][second].equals("Q")||y[first][second].equals("B"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("k")))
            {
                break;
            }
            first++;
            second--;
        }
        first = c;
        second = t;
        while(second>=0 && first>=0 && done ==0)
        {
            if(y[first][second].equals("Q")||y[first][second].equals("B"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("k")))
            {
                break;
            }
            first--;
            second--;
        }
        first = c;
        second = t;
        while(second<8 && first>=0 && done ==0)
        {
            if(y[first][second].equals("Q")||y[first][second].equals("B"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("k")))
            {
                break;
            }
            first--;
            second++;
        }
        first = c;
        second = t;
        counter = 0;
        while(first<8 && second<8 && done ==0 && counter<2)
        {
            if(y[first][second].equals("N"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("k")))
            {
                break;
            }
            first += 2;
            second++;
            counter++;
        }
        first = c;
        second = t;
        counter = 0;
        while(first<8 && second>=0 && counter<2 && done==0)
        {
            if(y[first][second].equals("N"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("k")))
            {
                break;
            }
            first += 2;
            second--;
            counter++;
        }
        first = c;
        second = t;
        counter = 0;
        while(first>=0 && second>=0 && done==0)
        {
            if(y[first][second].equals("N"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("k")))
            {
                break;
            }
            first -= 2;
            second--;
            counter++;
        }
        first = c;
        second = t;
        counter = 0;
        while(first>=0 && second<8 && counter<2 && done==0)
        {
            if(y[first][second].equals("N"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("k")))
            {
                break;
            }
            first -= 2;
            second++;
            counter++;
        }
        first = c;
        second = t;
        counter = 0;
        while(first<8 && second<8 && counter<2 && done==0)
        {
            if(y[first][second].equals("N"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("k")))
            {
                break;
            }
            first++;
            second +=2;
            counter++;
        }
        first = c;
        second = t;
        counter = 0;
        while(first>=0 && second>=0 && counter<2 && done==0)
        {
            if(y[first][second].equals("N"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("k")))
            {
                break;
            }
            first--;
            second -=2;
            counter++;
        }
        first = c;
        second = t;
        counter = 0;
        while(first>=0 && second<8 && counter<2 && done==0)
        {
            if(y[first][second].equals("N"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("k")))
            {
                break;
            }
            first--;
            second +=2;
            counter++;
        }
        first = c;
        second = t;
        counter = 0;
        while(first<8 && second>=0 && counter<2 && done==0)
        {
            if(y[first][second].equals("N"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("k")))
            {
                break;
            }
            first++;
            second -=2;
            counter++;
        }
        first = c;
        second = t;
        counter = 0;
        while(first>=0 && second>=0 && counter<2 && done==0)
        {
            if(y[first][second].equals("P"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("k")))
            {
                break;
            }
            first--;
            second--;
            counter++;
        }
        first = c;
        second = t;
        counter = 0;
        while(first>=0 && second<8 && counter<2 && done==0)
        {
            if(y[first][second].equals("P"))
            {
                done = 1;
                break;
            } 
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("k")))
            {
                break;
            }
            first--;
            second++;
            counter++;
        }
        if(done==1)
        {
            return true;
        }
        return false;
    }
    static boolean WhiteKing(int c , int t , String [] [] y){
        int counter = 0;
        int done = 0;
        int first = c,second = t;
        while(second<8 && done==0)
        {
            if(y[first][second].equals("r") || y[first][second].equals("q"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("K")))
            {
                break;
            }
            second++;
        }
        first = c;
        second = t;
        while(second>=0 && done==0)
        {
            if(y[first][second].equals("r")||y[first][second].equals("q"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("K")))
            {
                break;
            }
            second--;
        }
        first = c;
        second = t;
        while(first<8 && done ==0)
        {
            if(y[first][second].equals("r")||y[first][second].equals("q"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("K")))
            {
                break;
            }
            first++;
        }
        first = c;
        second = t;
        while(first>=0 && done==0)
        {
            if(y[first][second].equals("r")||y[first][second].equals("q"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("K")))
            {
                break;
            }
            first--;
        }
        first = c;
        second = t;
        while(second<8 && first<8 && done==0)
        {
            if(y[first][second].equals("q")||y[first][second].equals("b"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("K")))
            {
                break;
            }
            first++;
            second++;
        }
        first = c;
        second = t;
        while(second>=0 && first<8 && done ==0)
        {
            if(y[first][second].equals("q")||y[first][second].equals("b"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("K")))
            {
                break;
            }
            first++;
            second--;
        }
        first = c;
        second = t;
        while(second>=0 && first>=0 && done ==0)
        {
            if(y[first][second].equals("q")||y[first][second].equals("b"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("K")))
            {
                break;
            }
            first--;
            second--;
        }
        first = c;
        second = t;
        while(second<8 && first>=0 && done == 0)
        {
            if(y[first][second].equals("q")||y[first][second].equals("b"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("K")))
            {
                break;
            }
            first--;
            second++;
        }
        first = c;
        second = t;
        counter = 0;
        while(first<8 && second<8 && done ==0 && counter<2)
        {
            if(y[first][second].equals("n"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("K")))
            {
                break;
            }
            first += 2;
            second++;
            counter++;
        }
        first = c;
        second = t;
        counter = 0;
        while(first<8 && second>=0 && counter<2 && done==0)
        {
            if(y[first][second].equals("n"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("K")))
            {
                break;
            }
            first += 2;
            second--;
            counter++;
        }
        first = c;
        second = t;
        counter = 0;
        while(first>=0 && second>=0 && done==0)
        {
            if(y[first][second].equals("n"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("K")))
            {
                break;
            }
            first -= 2;
            second--;
            counter++;
        }
        first = c;
        second = t;
        counter = 0;
        while(first>=0 && second<8 && counter<2 && done==0)
        {
            if(y[first][second].equals("n"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("K")))
            {
                break;
            }
            first -= 2;
            second++;
            counter++;
        }
        first = c;
        second = t;
        counter = 0;
        while(first<8 && second<8 && counter<2 && done==0)
        {
            if(y[first][second].equals("n"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("K")))
            {
                break;
            }
            first++;
            second +=2;
            counter++;
        }
        first = c;
        second = t;
        counter = 0;
        while(first>=0 && second>=0 && counter<2 && done==0)
        {
            if(y[first][second].equals("n"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("K")))
            {
                break;
            }
            first--;
            second -=2;
            counter++;
        }
        first = c;
        second = t;
        counter = 0;
        while(first>=0 && second<8 && counter<2 && done==0)
        {
            if(y[first][second].equals("n"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("K")))
            {
                break;
            }
            first--;
            second +=2;
            counter++;
        }
        first = c;
        second = t;
        counter = 0;
        while(first<8 && second>=0 && counter<2 && done==0)
        {
            if(y[first][second].equals("n"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("K")))
            {
                break;
            }
            first++;
            second -=2;
            counter++;
        }
        first = c;
        second = t;
        counter = 0;
        while(first<8 && second>=0 && counter<2 && done==0)
        {
            if(y[first][second].equals("p"))
            {
                done = 1;
                break;
            }
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("K")))
            {
                break;
            }
            first ++;
            second--;
            counter++;
        }
        first = c;
        second = t;
        counter = 0;
        while(first<8 && second<8 && counter<2 && done == 0)
        {
            if(y[first][second].equals("p"))
            {
                done = 1;
                break;
            } 
            else if(!(y[first][second].equals(".")) && !(y[first][second].equals("K")))
            {
                break;
            }
            first ++;
            second++;
            counter++;
        }
        if(done==1)
        {
            return true;
        }
        return false;
    }               
    public static void main(String [] args)throws IOException{  
        final BufferedReader k = new BufferedReader(new InputStreamReader(System.in));
        PrintWriter z = new PrintWriter(System.out);
        String [] [] cheq = {{".",".",".",".",".",".",".","."},{".",".",".",".",".",".",".","."},{".",".",".",".",".",".",".","."},{".",".",".",".",".",".",".","."},{".",".",".",".",".",".",".","."},{".",".",".",".",".",".",".","."},{".",".",".",".",".",".",".","."},{".",".",".",".",".",".",".","."}};
        int i = 1;
        String line;
        while((line = k.readLine()) != null)
        {
            String [][] y = new String [8][8];
            int white = 0,black = 0;
            boolean b = false;
            for(int c = 0;c<8;c++)
            {
                y[7][c] = line.charAt(c)+"";
            }
            for(int c = 6;c>=0;c--)
            {
                String s = k.readLine();
                for(int d = 0;d<8;d++)
                {
                    y[c][d] = ""+s.charAt(d);
                }
            }
            if(Arrays.deepEquals(cheq,y))
            {
                break;
            }
            else
            {
                k.readLine();
                for(int c = 7;c>=0;c--)
                {
                    for(int d = 0;d<8;d++)
                    {
                        if(y[c][d].equals("K"))
                        {
                            b = WhiteKing(c,d,y);
                            if(b)
                            {
                                white = 1;
                                break;
                            }
                        }
                        else if(y[c][d].equals("k"))
                        {
                            b = Blacking(c,d,y);
                            if(b)
                            {
                                black = 1;
                                break;
                            }
                        }
                    }
                    if(b)
                    {
                        break;
                    }
                }
                if(b && black==1)
                {
                    z.println("Game #"+i+": black king is in check.");
                }
                else if(b && white==1)
                {
                    z.println("Game #"+i+": white king is in check.");
                }
                else
                {
                    z.println("Game #"+i+": no king is in check.");
                }
                i++;
            }
        }
        z.flush();
    }
}

Posted: **Thu Mar 07, 2013 2:37 am**

Try input:

Code: Select all

.......K
........
........
........
.....n..
k.......
........
........

........
........
........
........
........
........
........
........

Posted: **Mon Mar 25, 2013 10:52 pm**

Hi I have tested my code with all cases provide in this forum. But I am getting WA.
Please help me to find out what I am doing wrong. Here is my code -

Code: Select all

#include <algorithm>
#include <cctype>
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <deque>
#include <iostream>
#include <list>
#include <map>
#include <numeric>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <vector>
#include <valarray>
#include <functional>

using namespace std;

#define fo(i,j,n) for(i=j;i<n;++i)
#define Fo(i,j,n) for(i=n-1;i>=j;--i)
#define foo(i,j,v) fo(i,j,sz(v))
#define Foo(i,j,v) Fo(i,j,sz(v))
#define li(v) v.begin(),v.end()
#define sz(v) ((int)v.size())
#define CLR(a,v) memset((a),(v),sizeof(a))
#define inf 1000000001
typedef long long Long;
//typedef __int64 Long;
#define pi (2*acos(0))
#define eps 1e-9

#define two(X) (1<<(X))
#define twoL(X) (((Long)(1))<<(X))
#define contain(S,X) (((S)&two(X))!=0)
#define containL(S,X) (((S)&twoL(X))!=0)

#define pb(x) push_back(x)
#define present(m,s) (m.find(s)!=m.end())

typedef pair<int,int> ii;

char BUFFER[100000 + 5];
bool readn(int &n)	{ return scanf("%d",&n) == 1; }
//bool readl(Long &n)	{ return scanf("%I64d",&n) == 1; }
bool readd(double &n){ return scanf("%lf",&n) == 1; }
bool reads(string &s){ s = ""; int n = scanf("%s",BUFFER); if(n == 1)s = BUFFER; return n == 1; }
bool readln(string &s){ char *valid = gets(BUFFER); if(valid)s = BUFFER; return ((bool)valid); }

#define maxn 10

char g[maxn][maxn];

bool valid(int i, int j){
    if(i < 0 || j < 0 || i >= 8 || j >= 8) return false;
    return true;
}

bool rook_queen(int x, int y, int (*f)(int)){
    int i;
    // check forward
    fo(i,1,8-y){
        if(g[x][y+i] == f('r') || g[x][y+i] == f('q')) return true;
        if(g[x][y+i] != '.') break;
    }
    // check backward
    fo(i,1,y){
        if(g[x][y-i] == f('r') || g[x][y-i] == f('q')) return true;
        if(g[x][y-i] != '.') break;
    }
    // check upward
    fo(i,1,x){
        if(g[x-i][y] == f('r') || g[x-i][y] == f('q')) return true;
        if(g[x-i][y] != '.') break;
    }
    // check downward
    fo(i,1,8-x){
        if(g[x+i][y] == 'r' || g[x+i][y] == 'q') return true;
        if(g[x+i][y] != '.') break;
    }

    return false;
}

bool bishop_queen(int x, int y, int (*f)(int)){
    int i;
    // check toward north east corner
    fo(i,1,min(x,8-y)){
        if(g[x-i][y+i] == f('b') || g[x-i][y+i] == f('q')) return true;
        if(g[x-i][y+i] != '.') break;
    }
    // check toward south east corner
    fo(i,1,min(8-x,8-y)){
        if(g[x+i][y+i] == f('b') || g[x+i][y+i] == f('q')) return true;
        if(g[x+i][y+i] != '.') break;
    }
    // check toward south west corner
    fo(i,1,min(8-x,y)){
        if(g[x+i][y-i] == f('b') || g[x+i][y-i] == f('q')) return true;
        if(g[x+i][y-i] == '.') break;
    }
    // check toward north west corner
    fo(i,1,min(x,y)){
        if(g[x-i][y-i] == f('b') ||g[x-i][y-i] == f('q')) return true;
        if(g[x-i][y-i] != '.') break;
    }
    return false;
}

#define row 0
#define col 1

int dir[][8] = {
    1,2,2,1,-1,-2,-2,-1,
    2,1,-1,-2,-2,-1,1,2
};

bool knight(int x, int y, int (*f)(int)){
    int i;
    fo(i, 0,8){
        if(valid(x+dir[row][i],y+dir[col][i]) && g[x+dir[row][i]][y+dir[col][i]] == f('n')) return true;
    }
    return false;
}

bool white_king_checked(int x, int y){
    if(valid(x-1,y-1) && g[x-1][y-1] == 'p') return true;
    if(valid(x-1,y+1) && g[x-1][y+1] == 'p') return true;
    if(knight(x,y,tolower)) return true;
    if(rook_queen(x,y,tolower)) return true;
    if(bishop_queen(x,y,tolower)) return true;
    return false;
}

bool black_king_checked(int x, int y){
    if(valid(x+1,y-1) && g[x+1][y-1] == 'P') return true;
    if(valid(x+1,y+1) && g[x+1][y+1] == 'P') return true;
    if(knight(x,y,toupper)) return true;
    if(rook_queen(x,y,toupper)) return true;
    if(bishop_queen(x,y,toupper)) return true;
    return false;
}

int main()
{
	#ifdef localhost
	freopen("G:\\test.in","r",stdin);
	//freopen("G:\\test.out","w",stdout);
	#endif

	int i,j, kase = 0;
	char dummy[maxn];
	ii w,b;
	bool flg;
	while(1){
        flg = false;
        fo(i,0,8){
            gets(g[i]);
            fo(j,0,8){
                if(g[i][j] == 'k') { b = ii(i,j); flg = true; }
                if(g[i][j] == 'K') { w = ii(i,j); flg = true; }
            }
        }
        if(!flg) break;
        gets(dummy); // extra line
        printf("Game #%d: ", ++kase);

        if(white_king_checked(w.first, w.second)) printf("white king is in check.\n");
        else if(black_king_checked(b.first, b.second)) printf("black king is in check.\n");
        else printf("no king is in check.\n");

	}

	return 0;
}

Thanks in advance.

Posted: **Wed Mar 27, 2013 12:36 am**

Try input:

Code: Select all

R.......
k.......
........
........
K.......
........
........
........

........
........
........
........
........
........
........
........

Posted: **Mon Apr 07, 2014 4:50 am**

hello, i am having a really hard time with this problem, i am so sure i did not make any mistakes that its impossible to me to find where i am mistaking, i have tried over a 100 test cases, and all seem to be right, keep getting W.A, i am sick of it, please help.

Code: Select all

#include <iostream>
#include <cstdio>
#include <cstring>
using namespace std;

char matrix[9][9];
char king[2]={'k','K'};
int movx[]={-2,-2,-1,-1,1,1,2,2};
int movy[]={-1,1,-2,2,-2,2,-1,1};

int diagx[]={1,-1,1,-1};
int diagy[]={-1,1,1,-1};

int horx[]={1,0,-1,0};
int hory[]={0,1,0,-1};
	
bool work(int i, int j, int v){

if (matrix[i][j]=='q' || matrix[i][j]=='Q'){
	
for (int k=0;k<4;++k){
	int aux=horx[k]+i;
	int auy=hory[k]+j;
	bool no=false;
	
	while (aux>=0 && aux<8 && auy>=0 && auy<8 && !no){
		if (matrix[aux][auy]==king[v])
		return true;
		if (matrix[aux][auy]!='.')
		no=true;
		aux+=horx[k];
		auy+=hory[k];
	}
}
	
for (int k=0;k<4;++k){
	int aux=diagx[k]+i;
	int auy=diagy[k]+j;
	bool no=false;
	
	while (aux>=0 && aux<8 && auy>=0 && auy<8 && !no){
		if (matrix[aux][auy]==king[v])
		return true;
		if (matrix[aux][auy]!='.')
		no=true;
		aux+=diagx[k];
		auy+=diagy[k];
	}
}

}else if (matrix[i][j]=='b' || matrix[i][j]=='B'){
		for (int k=0;k<4;++k){
	int aux=diagx[k]+i;
	int auy=diagy[k]+j;
	bool no=false;
	
	while (aux>=0 && aux<8 && auy>=0 && auy<8 && !no){
		if (matrix[aux][auy]==king[v])
		return true;
		if (matrix[aux][auy]!='.')
		no=true;
		
		aux+=diagx[k];
		auy+=diagy[k];
	}
}

	
}else if (matrix[i][j]=='r' || matrix[i][j]=='R'){
	for (int k=0;k<4;++k){
	int aux=horx[k]+i;
	int auy=hory[k]+j;
	bool no=false;
	
	while (aux>=0 && aux<8 && auy>=0 && auy<8 && !no){
		if (matrix[aux][auy]==king[v])
		return true;
		if (matrix[aux][auy]!='.')
		no=true;
		
		aux+=horx[k];
		auy+=hory[k];
	}
}
	
}else if (matrix[i][j]=='n' || matrix[i][j]=='N'){
	

	for (int d=0;d<8;++d){
		int aux=i+movx[d];
		int auy=j+movy[d];
		if (aux>=0 && auy>=0 && aux<8 && auy<8){
			
		if (matrix[aux][auy]==king[v])
		return true;
		}
	}
	
}else if (matrix[i][j]=='p'){
	if (i+1<8 && j+1<8)
	if (matrix[i+1][j+1]==king[v])
	return true;
	
	if(i+1<8 && j-1>=0)
	if (matrix[i+1][j-1]==king[v])
	return true;
	
}else if (matrix[i][j]=='P'){
		if (i-1>=0 && j+1<8)
	if (matrix[i-1][j+1]==king[v])
	return true;
	
	if(i-1>=0 && j-1>=0)
	if (matrix[i-1][j-1]==king[v])
	return true;
}
	
	return false;
}

int main() {
	bool white,black;
	int a=1;
	while (true){
		white=black=false;
			int f=0;
		for (int i=0;i<8;++i){
		scanf("%s",matrix[i]);
		for (int j=0;j<8;++j)
		if (matrix[i][j]!='.')
		f=1;
		}
		if (f==0) return 0;
		int cont=0;
	
		
		
		
		
		for (int i=0;i<8;++i)
		for (int j=0;j<8;++j){
			if (matrix[i][j]=='q' || matrix[i][j]=='n' || matrix[i][j]=='b' || matrix[i][j]=='r' || matrix[i][j]=='p'){
			
				black=work(i,j,1);
				if (black){
					cont++;
					
				printf("Game #%d: white king is in check.\n",a++);
				break;
				}
			}else if (matrix[i][j]=='Q' || matrix[i][j]=='N' || matrix[i][j]=='B' || matrix[i][j]=='R' || matrix[i][j]=='P'){
				
				white=work(i,j,0);
				if (white){
					cont++;
					printf("Game #%d: black king is in check.\n",a++);
					break;
				}
				
			} 		
			}
	
		
		if (cont==0)
		printf("Game #%d: no king is in check.\n",a++);
		
	
	
}
	return 0;
}

Posted: **Sun Sep 21, 2014 2:25 am**

[ANSI C]

Can someone plz tell me why I got WA ?

Code: Select all

#include <stdio.h>
#include <stdlib.h>

char field[8][8];

int black_king[2];
int white_king[2];

int isTheEnd()
{
	white_king[0] = -1;
	white_king[1] = -1;
	black_king[0] = -1;
	black_king[1] = -1;
	int i, j, temp = 1;
	for(i = 0; i < 8; ++i)
	{
		for(j = 0; j < 8; ++j)
		{
			if(field[i][j] != '.') temp = 0;
			if(field[i][j] == 'k')
			{
				black_king[0] = i;
				black_king[1] = j;	
			}
			if(field[i][j] == 'K')
			{
				white_king[0] = i;
				white_king[1] = j;
			}
		}
	}
	return temp;
}

int peao_negro(int linha, int coluna)
{
	if(linha + 1 <= 7)
	{
		if(coluna + 1 <= 7) if(field[linha + 1][coluna + 1] == 'K') return 1;
		if(coluna - 1 >= 0) if(field[linha + 1][coluna - 1] == 'K') return 1;
	}
	return 0;
}

int peao_branco(int linha, int coluna)
{
	if(linha - 1 >= 0)
	{
		if(coluna + 1 <= 7) if(field[linha - 1][coluna + 1] == 'k') return 2;
		if(coluna - 1 >= 0) if(field[linha - 1][coluna - 1] == 'k') return 2;
	}
	return 0;
}

int torre_negro(int linha, int coluna)
{
	if(linha == white_king[0])
	{
		int j;
		if(coluna < white_king[1])
		{
			for(j = coluna + 1; j < white_king[1]; j++)
				if(field[linha][j] != '.') return 0;
		}
		else
		{
			for(j = white_king[1] + 1; j < coluna; j++)
				if(field[linha][j] != '.') return 0;
		}
		return 1;
	}
	if(coluna == white_king[1])
	{
		int i;
		if(linha < white_king[0])
		{
			for(i = linha + 1; i < white_king[0]; i++)
				if(field[i][coluna] != '.') return 0;
		}
		else
		{
			for(i = white_king[0] + 1; i < linha; i++)
				if(field[i][coluna] != '.') return 0;
		}
		return 1;
	}
	return 0;
}

int torre_branco(int linha, int coluna)
{
	if(linha == black_king[0])
	{
		int j;
		if(coluna < black_king[1])
		{
			for(j = coluna + 1; j < black_king[1]; j++)
				if(field[linha][j] != '.') return 0;
		}
		else
		{
			for(j = black_king[1] + 1; j < coluna; j++)
				if(field[linha][j] != '.') return 0;
		}
		return 2;
	}
	if(coluna == black_king[1])
	{
		int i;
		if(linha < black_king[0])
		{
			for(i = linha + 1; i < black_king[0]; i++)
				if(field[i][coluna] != '.') return 0;
		}
		else
		{
			for(i = black_king[0] + 1; i < linha; i++)
				if(field[i][coluna] != '.') return 0;
		}
		return 2;
	}
	return 0;
}

int cavalo_negro(int linhas, int colunas)
{
	if(linhas + 2 <= 7)
	{
		if(colunas + 1 <= 7) if(field[linhas + 2][colunas + 1] == 'K') return 1;
		if(colunas - 1 >= 0) if(field[linhas + 2][colunas - 1] == 'K') return 1;
	}
	if(linhas + 1 <= 7)
	{
		if(colunas + 2 <= 7) if(field[linhas + 1][colunas + 2] == 'K') return 1;
		if(colunas - 2 >= 0) if(field[linhas + 1][colunas - 2] == 'K') return 1;
	}
	if(linhas - 2 >= 0)
	{
		if(colunas + 1 <= 7) if(field[linhas - 2][colunas + 1] == 'K') return 1;
		if(colunas - 1 >= 0) if(field[linhas - 2][colunas - 1] == 'K') return 1;		
	}
	if(linhas - 1 >= 0)
	{
		if(colunas + 2 <= 7) if(field[linhas - 1][colunas + 2] == 'K') return 1;
		if(colunas - 2 >= 0) if(field[linhas - 1][colunas - 2] == 'K') return 1;			
	}
	return 0;
}

int cavalo_branco(int linhas, int colunas)
{
	if(linhas + 2 <= 7)
	{
		if(colunas + 1 <= 7) if(field[linhas + 2][colunas + 1] == 'k') return 2;
		if(colunas - 1 >= 0) if(field[linhas + 2][colunas - 1] == 'k') return 2;
	}
	if(linhas + 1 <= 7)
	{
		if(colunas + 2 <= 7) if(field[linhas + 1][colunas + 2] == 'k') return 2;
		if(colunas - 2 >= 0) if(field[linhas + 1][colunas - 2] == 'k') return 2;
	}
	if(linhas - 2 >= 0)
	{
		if(colunas + 1 <= 7) if(field[linhas - 2][colunas + 1] == 'k') return 2;
		if(colunas - 1 >= 0) if(field[linhas - 2][colunas - 1] == 'k') return 2;		
	}
	if(linhas - 1 >= 0)
	{
		if(colunas + 2 <= 7) if(field[linhas - 1][colunas + 2] == 'k') return 2;
		if(colunas - 2 >= 0) if(field[linhas - 1][colunas - 2] == 'k') return 2;			
	}
	return 0;
}

int bispo_negro(int linhas, int colunas)
{
	int i, j;
	for(i = linhas + 1, j = colunas + 1; i < 8, j < 8; i++, j++)
	{
		if(field[i][j] != '.')
		{
			if(field[i][j] == 'K') return 1;
			else break; 
		}
	}
	for(i = linhas + 1, j = colunas - 1; i < 8, j > -1; i++, j--)
	{
		if(field[i][j] != '.')
		{
			if(field[i][j] == 'K') return 1;
			else break; 
		}
	}
	for(i = linhas - 1, j = colunas - 1; i > -1, j > -1; i--, j--)
	{
		if(field[i][j] != '.')
		{
			if(field[i][j] == 'K') return 1;
			else break; 
		}
	}
	for(i = linhas - 1, j = colunas + 1; i > -1, j < 8; i--, j++)
	{
		if(field[i][j] != '.')
		{
			if(field[i][j] == 'K') return 1;
			else break; 
		}
	}
	return 0;
}

int bispo_branco(int linhas, int colunas)
{
	int i, j;
	for(i = linhas + 1, j = colunas + 1; i < 8, j < 8; i++, j++)
	{
		if(field[i][j] != '.')
		{
			if(field[i][j] == 'k') return 2;
			else break; 
		}
	}
	for(i = linhas + 1, j = colunas - 1; i < 8, j > -1; i++, j--)
	{
		if(field[i][j] != '.')
		{
			if(field[i][j] == 'k') return 2;
			else break; 
		}
	}
	for(i = linhas - 1, j = colunas - 1; i > -1, j > -1; i--, j--)
	{
		if(field[i][j] != '.')
		{
			if(field[i][j] == 'k') return 2;
			else break; 
		}
	}
	for(i = linhas - 1, j = colunas + 1; i > -1, j < 8; i--, j++)
	{
		if(field[i][j] != '.')
		{
			if(field[i][j] == 'k') return 2;
			else break; 
		}
	}
	return 0;
}

int main()
{
	int i, j, game = 0;
	int cheque[200] = {0};
	while(1)
	{
		scanf("%s %s %s %s %s %s %s %s", field[0], field[1], field[2], field[3], field[4], field[5], field[6], field[7]);
		if(isTheEnd()) break;
		for(i = 0; i < 8; i++)
		{
			if(cheque[game] != 0) break;
			for(j = 0; j < 8; j++)
			{
				if(cheque[game] != 0) break;
				switch(field[i][j])
				{
					case 'p':
						cheque[game] = peao_negro(i, j);
						break;
					case 'P':
						cheque[game] = peao_branco(i, j);
						break;
					case 'r':
						cheque[game] = torre_negro(i, j);
						break;
					case 'R':
						cheque[game] = torre_branco(i, j);
						break;
					case 'n':
						cheque[game] = cavalo_negro(i, j);
						break;
					case 'N':
						cheque[game] = cavalo_branco(i, j);
						break;
					case 'b':
						cheque[game] = bispo_negro(i, j);
						break;
					case 'B':
						cheque[game] = bispo_branco(i, j);
						break;
					case 'q':
						if(bispo_negro(i, j) == 1 || torre_negro(i, j) == 1) cheque[game] = 1;
						break;
					case 'Q':
						if(bispo_branco(i, j) == 2 || torre_branco(i, j) == 2) cheque[game] = 2;
						break;
				}
			}
		}
		game++;
	}
	for(i = 0; i < game; i++)
	{
		if(i != 0) printf("\n");
		if(cheque[i] == 0) 	printf("Game #%i: no king is in check.", i + 1);
		if(cheque[i] == 1) 	printf("Game #%i: white king is in check.", i + 1);
		if(cheque[i] == 2)	printf("Game #%i: black king is in check.", i + 1);
	}
}

PS: 'linhas' = x
'colunas' = y

Some variables are in Portuguse, sorry :/

Thank you !

OJ Board

10196 - Check The Check

Re: 10196 - Check The Check

Re: 10196 - Check The Check

Re: 10196 - Check The Check

Re: 10196 - Check The Check

Re: 10196 - Check The Check

Re: 10196 - Check The Check

Re:

Re: 10196 - Check The Check

Re: 10196 - Check The Check

Re: 10196 - Check The Check

Re: 10196 - Check The Check

Re: 10196 - Check The Check

Re: 10196 - Check The Check

Re: 10196 - Check The Check

Re: 10196 - Check The Check