608  Counterfeit Dollar
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608  Counterfeit Dollar
i got W.A. with this problem. can anyone gimme some test data for this problem???
i have no idea about why i get wrong answer..
i just test all possibilities,and print the anwer...
Does it may have more than one conterfeit dollar?
#include <stdio.h>
#include <string.h>
class stat
{
public:
long leftp[4];
long rightp[4];
long stable;
};
void main()
{
long i,j,k,t,tmp,tmpx,num,cnt,sum,n[12],a,b,p;
char left[10],right[10],sta[10];
stat c[3];
scanf("%ld",&num);
for(p=0;p<num;p++)
{
for(i=0;i<3;i++)
{
scanf("%s %s %s",&left,&right,&sta);
for(j=0;j<4;j++)
{
c.leftp[j]=left[j]65;
}
for(j=0;j<4;j++)
{
c.rightp[j]=right[j]65;
}
if(sta[0]=='e')
{
c.stable=0;
}
else if(sta[0]=='u')
{
c.stable=1;
}
else if(sta[0]=='d')
{
c.stable=1;
}
}
for(j=0;j<12;j++)
{
n[j]=0;
}
for(i=0;i<12;i++)
{
n=1;
t=0;
for(j=0;j<3;j++)
{
a=n[c[j].leftp[0]]+n[c[j].leftp[1]]+n[c[j].leftp[2]]+n[c[j].leftp[3]];
b=n[c[j].rightp[0]]+n[c[j].rightp[1]]+n[c[j].rightp[2]]+n[c[j].rightp[3]];
k=ab;
if(k!=c[j].stable)
{
t=1;
}
}
if(t==0)
{
tmpx=i;
break;
}
n=1;
t=0;
for(j=0;j<3;j++)
{
a=n[c[j].leftp[0]]+n[c[j].leftp[1]]+n[c[j].leftp[2]]+n[c[j].leftp[3]];
b=n[c[j].rightp[0]]+n[c[j].rightp[1]]+n[c[j].rightp[2]]+n[c[j].rightp[3]];
k=ab;
if(k!=c[j].stable)
{
t=1;
}
}
if(t==0)
{
tmpx=i;
break;
}
n=0;
}
if(n[tmpx]==1)
{
printf("%c is the counterfeit coin and it is heavy.n",tmpx+65);
}
else if(n[tmpx]==1)
{
printf("%c is the counterfeit coin and it is light.n",tmpx+65);
}
}
}
i just test all possibilities,and print the anwer...
Does it may have more than one conterfeit dollar?
#include <stdio.h>
#include <string.h>
class stat
{
public:
long leftp[4];
long rightp[4];
long stable;
};
void main()
{
long i,j,k,t,tmp,tmpx,num,cnt,sum,n[12],a,b,p;
char left[10],right[10],sta[10];
stat c[3];
scanf("%ld",&num);
for(p=0;p<num;p++)
{
for(i=0;i<3;i++)
{
scanf("%s %s %s",&left,&right,&sta);
for(j=0;j<4;j++)
{
c.leftp[j]=left[j]65;
}
for(j=0;j<4;j++)
{
c.rightp[j]=right[j]65;
}
if(sta[0]=='e')
{
c.stable=0;
}
else if(sta[0]=='u')
{
c.stable=1;
}
else if(sta[0]=='d')
{
c.stable=1;
}
}
for(j=0;j<12;j++)
{
n[j]=0;
}
for(i=0;i<12;i++)
{
n=1;
t=0;
for(j=0;j<3;j++)
{
a=n[c[j].leftp[0]]+n[c[j].leftp[1]]+n[c[j].leftp[2]]+n[c[j].leftp[3]];
b=n[c[j].rightp[0]]+n[c[j].rightp[1]]+n[c[j].rightp[2]]+n[c[j].rightp[3]];
k=ab;
if(k!=c[j].stable)
{
t=1;
}
}
if(t==0)
{
tmpx=i;
break;
}
n=1;
t=0;
for(j=0;j<3;j++)
{
a=n[c[j].leftp[0]]+n[c[j].leftp[1]]+n[c[j].leftp[2]]+n[c[j].leftp[3]];
b=n[c[j].rightp[0]]+n[c[j].rightp[1]]+n[c[j].rightp[2]]+n[c[j].rightp[3]];
k=ab;
if(k!=c[j].stable)
{
t=1;
}
}
if(t==0)
{
tmpx=i;
break;
}
n=0;
}
if(n[tmpx]==1)
{
printf("%c is the counterfeit coin and it is heavy.n",tmpx+65);
}
else if(n[tmpx]==1)
{
printf("%c is the counterfeit coin and it is light.n",tmpx+65);
}
}
}
608 (Counterfeit Dollar) WA
I just wonder why I get WA? For each coin I consider that it is false and then check 3 weighings. If these weighings are correct (I consider that all other coins is not false) then I write these coin as answer. Am I wrong?
[pascal]Program p608;
Var T,tt : Integer;
i,j,k : Integer;
Ch : Char;
Inf : Array[1..3]of Record L,R,S : String End;
S : String;
Function CheckChar(Ch : Char) : Boolean;
Var S,i,j : Integer;
begin
CheckChar:=False;
k:=0;
for i:=1 to 3 do begin
S:=0;
for j:=1 to length(Inf.L) do if Inf.L[j]=Ch then S:=S+1;
for j:=1 to length(Inf.R) do if Inf.R[j]=Ch then S:=S1;
if (S=0) And (Inf.S<>'even') then Exit;
if (S<>0) And (Inf.S<>'up') then Exit;
if Inf.S='up' then if S<0 then k:=1;
end;
CheckChar:=True;
end;
begin
Readln(T);
for tt:=1 to T do begin
for k:=1 to 3 do begin
for i:=1 to length(S) do S:=UpCase(S);
Readln(S);
While S[1]=' ' do Delete(S,1,1);
Inf[k].L:=Copy(S,1,Pos(' ',S)1);
Delete(S,1,Pos(' ',S));
While S[1]=' ' do Delete(S,1,1);
Inf[k].R:=Copy(S,1,Pos(' ',S)1);
Delete(S,1,Pos(' ',S));
While Pos(' ',S)>0 do Delete(S,Pos(' ',S),1);
if S='EVEN' then Inf[k].S:='even' else
if S='UP' then Inf[k].S:='up' else begin
S:=Inf[k].L;
Inf[k].L:=Inf[k].R;
Inf[k].R:=S;
Inf[k].S:='up';
end;
end;
for Ch:='A' to 'L' do
if CheckChar(Ch) then begin
Write(Ch,' is the counterfeit coin and it is ');
if k=0 then Writeln('heavy.') else Writeln('light.');
Break;
end;
end;
end.[/pascal]
[pascal]Program p608;
Var T,tt : Integer;
i,j,k : Integer;
Ch : Char;
Inf : Array[1..3]of Record L,R,S : String End;
S : String;
Function CheckChar(Ch : Char) : Boolean;
Var S,i,j : Integer;
begin
CheckChar:=False;
k:=0;
for i:=1 to 3 do begin
S:=0;
for j:=1 to length(Inf.L) do if Inf.L[j]=Ch then S:=S+1;
for j:=1 to length(Inf.R) do if Inf.R[j]=Ch then S:=S1;
if (S=0) And (Inf.S<>'even') then Exit;
if (S<>0) And (Inf.S<>'up') then Exit;
if Inf.S='up' then if S<0 then k:=1;
end;
CheckChar:=True;
end;
begin
Readln(T);
for tt:=1 to T do begin
for k:=1 to 3 do begin
for i:=1 to length(S) do S:=UpCase(S);
Readln(S);
While S[1]=' ' do Delete(S,1,1);
Inf[k].L:=Copy(S,1,Pos(' ',S)1);
Delete(S,1,Pos(' ',S));
While S[1]=' ' do Delete(S,1,1);
Inf[k].R:=Copy(S,1,Pos(' ',S)1);
Delete(S,1,Pos(' ',S));
While Pos(' ',S)>0 do Delete(S,Pos(' ',S),1);
if S='EVEN' then Inf[k].S:='even' else
if S='UP' then Inf[k].S:='up' else begin
S:=Inf[k].L;
Inf[k].L:=Inf[k].R;
Inf[k].R:=S;
Inf[k].S:='up';
end;
end;
for Ch:='A' to 'L' do
if CheckChar(Ch) then begin
Write(Ch,' is the counterfeit coin and it is ');
if k=0 then Writeln('heavy.') else Writeln('light.');
Break;
end;
end;
end.[/pascal]
I made some test cases for you:
INPUT
ABCD EFGH even
I J even
K A even
A B even
DE FG up
KG LI down
F G up
G K even
A I even
ABCDE FGHIJ even
K A even
B D even
BEF AGI down
AEF BGI up
B C down
OUTPUT
L is the counterfeit coin and it is heavy.
G is the counterfeit coin and it is light.
F is the counterfeit coin and it is heavy.
L is the counterfeit coin and it is heavy.
B is the counterfeit coin and it is light.
INPUT
ABCD EFGH even
I J even
K A even
A B even
DE FG up
KG LI down
F G up
G K even
A I even
ABCDE FGHIJ even
K A even
B D even
BEF AGI down
AEF BGI up
B C down
OUTPUT
L is the counterfeit coin and it is heavy.
G is the counterfeit coin and it is light.
F is the counterfeit coin and it is heavy.
L is the counterfeit coin and it is heavy.
B is the counterfeit coin and it is light.
Hi!
I think my solution is correct
But, I can be wrong
In my first input
ABCD EFGH even
I J even
K A even
All the coins appear on weighing, least L, and all is fine. So, L is the answer, ok??
In the second input
A B even
DE FG up
KG LI down
A e B are good coins, obviously
So, we know the bad coin is D, E, F or G, ok??
Thus, only G appears again in third line.
But it appears on the other side, i think it
I think my solution is correct
But, I can be wrong
In my first input
ABCD EFGH even
I J even
K A even
All the coins appear on weighing, least L, and all is fine. So, L is the answer, ok??
In the second input
A B even
DE FG up
KG LI down
A e B are good coins, obviously
So, we know the bad coin is D, E, F or G, ok??
Thus, only G appears again in third line.
But it appears on the other side, i think it
Well, I think you are right again
I made another test cases, I hope that it's ok. Tell me if you find some error.
INPUT
ABC DEF up
GHI JKL even
EF DA up
AFG JKL down
A J down
A D even
ED FG even
AB CI up
A D up
IL JK even
A B even
E L down
BEF JIL down
J A even
CEF BJI even
OUTPUT
D is the counterfeit coin and it is light.
J is the counterfeit coin and it is heavy.
A is the counterfeit coin and it is heavy.
E is the counterfeit coin and it is light.
L is the counterfeit coin and it is heavy.
I made another test cases, I hope that it's ok. Tell me if you find some error.
INPUT
ABC DEF up
GHI JKL even
EF DA up
AFG JKL down
A J down
A D even
ED FG even
AB CI up
A D up
IL JK even
A B even
E L down
BEF JIL down
J A even
CEF BJI even
OUTPUT
D is the counterfeit coin and it is light.
J is the counterfeit coin and it is heavy.
A is the counterfeit coin and it is heavy.
E is the counterfeit coin and it is light.
L is the counterfeit coin and it is heavy.

 New poster
 Posts: 4
 Joined: Mon Nov 14, 2005 4:03 pm
I don't know what's wrong ?
This is my source:
This is my source:
Code: Select all
#include <iostream>
#include <vector>
#include <string>
using namespace std;
struct SetWeight
{
enum { Len = 12};
bool st[Len];
int weight;
string swstr;
explicit SetWeight(bool setted = false)
{
for (unsigned i = 0; i < Len; ++i)
st[i] = setted;
};
void SetStr(const string & str)
{
swstr = str;
for (unsigned i = 0; i < str.size(); ++i)
{
if (str[i] >= 'A' && str[i] <= 'L')
st[str[i]'A'] = true;
else if (str[i] == 'e')
{
weight = 0;
break;
}
else if (str[i] == 'u')
{
weight = 1;
break;
}
else if (str[i] == 'd')
{
weight = 1;
break;
}
}
};
void Substraction(const SetWeight & sw)
{
for (unsigned i = 0; i < Len; ++i)
if (sw.st[i])
st[i] = false;
};
void Intersection(const SetWeight & sw)
{
for (unsigned i = 0; i < Len; ++i)
if (sw.st[i] && st[i])
st[i] = true;
else
st[i] = false;
};
int Size()
{
int retVal = 0;
for (unsigned i = 0; i < Len; ++i)
retVal += st[i] ? 1 : 0;
return retVal;
};
char Get()
{
for (unsigned i = 0; i < Len; ++i)
if (st[i])
return 'A' + i;
};
int GetSide(char ch)
{
bool left = true;
for (unsigned i = 0; i < swstr.size(); ++i)
{
if (swstr[i] >= 'A' && swstr[i] <= 'L')
{
if (swstr[i] == ch)
if (left)
return 1;
else
return 1;
}
else if (swstr[i] == 'e'  swstr[i] == 'u'  swstr[i] == 'd')
return 0;
else if (swstr[i] == ' ')
left = false;
}
};
};
int main(int argc, char* argv[])
{
int n;
cin >> n;
while ( n > 0)
{
unsigned i;
vector<SetWeight> inputSet(3);
SetWeight all(true);
SetWeight allInter;
bool allInterEmpty = true;
for (i = 0; i < 3; ++i)
{
string inp1, inp2, inp3;
cin >> inp1 >> inp2 >> inp3;
inputSet[i].SetStr(inp1 + " " + inp2 + " " + inp3);
}
for (i = 0; i < inputSet.size(); ++i)
if (inputSet[i].weight == 0)
all.Substraction(inputSet[i]);
else
if (allInterEmpty)
{
allInter = inputSet[i];
allInterEmpty = false;
}
else
allInter.Intersection(inputSet[i]);
if (allInter.Size() > 0)
all.Intersection(allInter);
char cntr = all.Get();
cout << cntr << " is the counterfeit coin and it is " ;
for (i = 0; i < inputSet.size(); ++i)
if (inputSet[i].weight != 0)
{
int side = inputSet[i].GetSide(cntr);
if (side != 0)
{
if (side == 1)
{
if (inputSet[i].weight == 1)
cout << "heavy";
else
cout << "light";
}
else
{
if (inputSet[i].weight == 1)
cout << "light";
else
cout << "heavy";
}
break;
}
}
cout << ".\n";
}
return 0;
}
Just try the input/output. (I dont have any pascal compiler, so I dont know whether the set helps you or not...)
Input:
Output:
Hope it helps.
Input:
Code: Select all
1
AC BD down
AC EF down
A F even
Output:
Code: Select all
C is the counterfeit coin and it is light.
Ami ekhono shopno dekhi...
HomePage
HomePage
what's wrong???
can anybody give me some critical I/O?
I've checked my program with the input in this board and it gives the same result ...
here's the sample of my input:
I've checked my program with the input in this board and it gives the same result ...
here's the sample of my input:
Code: Select all
input:
7
ABC DEF even
GHI JEF even
K EF up
ED FG even
AB CI down
A D down
ED FG even
AB CI down
D A up
ED FG even
CI AB up
A D down
ED FG even
AB CI up
D A down
ED FG even
CI AB down
A D up
AC BD down
AC EF down
A F even
Code: Select all
output:
K is the counterfeit coin and it is heavy.
A is the counterfeit coin and it is light.
A is the counterfeit coin and it is light.
A is the counterfeit coin and it is light.
A is the counterfeit coin and it is heavy.
A is the counterfeit coin and it is heavy.
C is the counterfeit coin and it is light.
Your outputs are correct. Check the samples...
Input:
Output:
Hope these help.
Input:
Code: Select all
3
IJK ABC even
C L even
L F up
IJK ABC even
C L even
L F down
ABCDE FGHIJ even
EIL ADJ down
K J even
Code: Select all
F is the counterfeit coin and it is light.
F is the counterfeit coin and it is heavy.
L is the counterfeit coin and it is light.
Ami ekhono shopno dekhi...
HomePage
HomePage