http://acm.pku.edu.cn/JudgeOnline/problem?id=1013以前沒做好是自己結構沒有想清楚，再加上竟然沒有想到用strchr這個函數．．．
Source Code
Problem: 1013 User: lnmm
Memory: 64K Time: 0MS
Language: C++ Result: Accepted
Source Code
#include"stdio.h"
#include"string.h"
char left[3][7],right[3][7],result[3][5];
bool isHeavy(char x )
{
int i;
for(i=0;i<3;i++)
{
switch(result[i][0])
{
case 'u':if(strchr(left[i],x)==NULL)return false;break;
case 'e':if(strchr(left[i],x)!=NULL||strchr(right[i],x)!=NULL)return false;break;
case 'd':if(strchr(right[i],x)==NULL)return false;break;
}
}
return true;
}
bool isLight(char x )
{
int i;
for(i=0;i<3;i++)
{
switch(result[i][0])
{
case 'u':if(strchr(right[i],x)==NULL)return false;break;
case 'e':if(strchr(left[i],x)!=NULL||strchr(right[i],x)!=NULL)return false;break;
case 'd':if(strchr(left[i],x)==NULL)return false;break;
}
}
return true;
}
void main()
{
int n;
char c;
int i;
scanf("%d",&n);
while(n>0)
{
for( i=0;i<3;i++)
scanf("%s%s%s",left[i],right[i],result[i]);
for(c='A';c<='L';c++)
{
if(isLight(c))
{
printf("%c is the counterfeit coin and it is light.\n",c);
break;
}
if(isHeavy(c))
{
printf("%c is the counterfeit coin and it is heavy.\n",c);
break;
}
}
n--;
}
}