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Posted: Tue Dec 12, 2006 12:41 pm
by sakhassan
trailing spaces means spaces after the words ... for eg.
"Hello World........" where "." represents space
... Hope u understand .....
use 'gets' instead of 'scanf' .....
Posted: Thu Jan 18, 2007 10:03 pm
by Debashis Maitra
After a lot of PE finally i got AC
thnx jan bhai for his input
thnx everyone
Posted: Sat Feb 10, 2007 7:33 pm
by blodstone
I think I did waht all you guys post here, trailing spaces, new line etc but why still got PE? Someone help me please.
Code: Select all
#include <cstdio>
#include <string>
#include <iostream>
#include <vector>
using namespace std;
int main(){
freopen("input.in","r",stdin);
freopen("output.out","w",stdout);
vector<string> x;
string buf;
int i=0;
int max=0;
while(true){
getline(cin,buf,'\n');
i=buf.length();
if(max<i) max=i;
x.push_back(buf);
if(feof(stdin)) break;
}
for(int i=0;i<max;i++){
for(int j=x.size()-1;j>=0;j--){
if(i<x[j].length()){
if(x[j][i]==32) cout << " ";
else
cout << x[j][i];
}
else
cout << " ";
}
cout << endl;
}
return 0;
}
Posted: Sun Feb 11, 2007 1:36 am
by Jan
Replace your code with the following part (you know where
)...
Code: Select all
while(getline(cin,buf,'\n')){
i=buf.length();
if(max<i) max=i;
x.push_back(buf);
}
Hope it helps.
490 wa plz help
Posted: Mon Feb 19, 2007 5:59 pm
by S.M. Arifuzzaman
I don't know what's the wrong here. here's my code
Code: Select all
#include<stdio.h>
int main()
{
//freopen("in.txt","r",stdin);
//freopen("ot.txt","w",stdout);
char arr[101][101]={' '},ch;
int i=0,j=0,maxj=-1; //maxj for maximum column length
while(scanf("%c",&ch)!=EOF)
{
if(ch=='\n')
{
arr[i][j]=' ';
i++;
if(j>maxj)
maxj=j;
j=0;
}
else
{
arr[i][j]=ch;
j++;
}
}
j--;
if(j>maxj)
maxj=j;
for(int m=0;m<=maxj;m++){
for(int k=i;k>=0;k--)
if(arr[k][m]!='\n')
printf("%c",arr[k][m]);
printf("\n");}
return 0;
}
I have tried some sets of input posted in the forum by 'JAN' and 'mogers'
and got desired output. then why wrong????
I am so crazy now..... plz help(newcomer)
Posted: Mon Feb 19, 2007 6:18 pm
by helloneo
Hello..
If there is a thread already, don't create a new thread.. just use old one to post..
By the way, your array does not contain '\n'
What is this supposed to mean..?
Code: Select all
if(arr[k][m]!='\n')
printf("%c",arr[k][m]);
Posted: Mon Feb 19, 2007 7:16 pm
by S.M. Arifuzzaman
Initially i didn't substitute '\n' with ' '(space)<i think it was a mistake, isn't?>. so the two lines was included.
anyway then i substituted '\n' with ' '(space) but carelessly the two lines u indicated remained.
however, it is all the same the line "if(arr[k][m]!='\n')" remains or not. I just want to print arr[k][m]. Then why error?
***sorry for bad english
Posted: Tue Feb 20, 2007 8:15 am
by S.M. Arifuzzaman
Hi, I m a newcomer facing wa in 490, but don't know why. I have checked my code with some sets of input posted in the forum by 'JAN' etc. my code produces expected output. so why wa????
Code: Select all
#include<stdio.h>
int main()
{
//freopen("in1.txt","r",stdin);
//freopen("ot.txt","w",stdout);
char arr[500][500]={' '},ch;
int i=0,j=0,maxj=-1; //maxj for maximum column length
while(scanf("%c",&ch)!=EOF)
{
if(ch=='\n')
{
arr[i][j]=' ';
i++;
if(j>maxj)
maxj=j;
j=0;
}
else
{
arr[i][j]=ch;
j++;
}
}
j--;
if(j>maxj)
maxj=j;
for(int m=0;m<=maxj;m++){
for(int k=i;k>=0;k--)
printf("%c",arr[k][m]);
printf("\n");}
return 0;
}
SO plz plz plz help me. I m getting crazy..........
Posted: Wed Feb 21, 2007 4:29 pm
by mf
Every line in input files, including the last one, is terminated by '\n'.
So, your program prints an unnecessary blank first column, that's why you get WA.
Posted: Wed Feb 21, 2007 6:46 pm
by S.M. Arifuzzaman
I hv done some modifications according to u(mf). but still
wa. modifications are indicated in the code as comments.
Code: Select all
#include<stdio.h>
int main()
{
// freopen("in.txt","r",stdin);
// freopen("ot.txt","w",stdout);
char arr[1000][1000]={' '},ch;
int i=0,j=0,maxj=-1; //maxj for maximum column length
while(scanf("%c",&ch)!=EOF)
{
if(ch=='\n')
{
//arr[i][j]=' '; //modification 1
i++;
j--; //modification 2:
//newly included as per mf to deselect '\n' from printing
if(j>maxj)
maxj=j;
j=0;
}
else
{
arr[i][j]=ch;
j++;
}
}
// j--; //modification 3:
//these 3 lines removed as even last line contains '\n'
// if(j>maxj)
/// maxj=j;
for(int m=0;m<=maxj;m++){
for(int k=i;k>=0;k--)
printf("%c",arr[k][m]);
printf("\n");}
return 0;
}
Posted: Wed Feb 21, 2007 7:24 pm
by mf
Still, your program prints a blank first column. Moreover, it prints \0 instead of some spaces.
Also, why not just let gets() handle all that business with lines and line terminators.
That's so much simpler:
Code: Select all
for (n = 0; gets(arr[n]) != NULL; n++);
// you've read n lines of input into arr[0], ..., arr[n-1]
Posted: Sun Feb 25, 2007 9:24 am
by S.M. Arifuzzaman
I am busy with my exam now, so I m temporarily retired. Anyway thnx mf for his suggestion. I expect to start very soon with his suggestion.
490 PE~~~Help
Posted: Fri Apr 06, 2007 7:00 pm
by lena
#include<stdio.h>
#include<string.h>
char a[100][102];
int n;
int len[100];
char res[120];
int main()
{
// freopen("490.txt","r+",stdin);
// freopen("490_O.txt","w+",stdout);
n = 0;
int i,j;
for(i=0;i<100;i++)
for(j=0;j<102;j++)
a[j]=0;
while(gets(a[n])&& strlen(a[n]) !=0 ){
n++;
}
//intf("%d\n",n);
for(i = 0;i<n;i++)len = strlen(a);
int ml = len[0];
for(i=0;i<n;i++) if(len>ml) ml = len;
for(i=0;i<ml;i++)
{
for(j=n-1;j>=0;j--)
if(a[j] == 0 || a[j] == '\t')
printf(" ");
else
printf("%c",a[j]);
if(i!=ml-1)
printf("\n");
}
//while(true){}
return 0;
}
Posted: Mon Apr 16, 2007 10:27 pm
by Jan
Search your problem first. Don't open a new thread if there is one already.
