POJ1013 Counterfeit Dollar

程序代码：

#include 
#include 
using namespace std;
char Left[3][7];	//天平左边硬币
char Right[3][7];	//天平右边硬币
char result[3][7];	//结果
bool IsFake(char c,bool light);
//light为真表示假设假币为轻，否则表示假设假币为重
int main(){
	int t;
	cin >> t;
	while(t--){
		for(int i = 0;i < 3;++i) 
		cin >> Left[i] >> Right[i] >> result[i];
		for(char c='A'; c<='L';c++){
			if( IsFake(c,true)){
				cout << c <<" is the counterfeit coin and it is light.\n";
				break;
			}
			else if( IsFake(c,false)){
				cout << c <<" is the counterfeit coin and it is heavy.\n";
				break;
			}
		}
	}
	return 0;
} 
bool IsFake(char c,bool light)
//light为真表示假设假币为轻，否则表示假设假币为重
{
	for(int i=0;i < 3; ++i){
		char *pLeft,*pRight;//指向天平两边的字符串
		if(light){
			pLeft = Left[i];
			pRight = Right[i];
		} 
		else{//如果假设假币是重的，则吧称量结果左右对换 
			pLeft = Right[i];
			pRight = Left[i]; 
		}
		switch(result[i][0]){
			case 'u':
				if(strchr(pRight,c)== NULL)
					return false;
				break;
			case 'e':
				if(strchr(pLeft,c)||strchr(pRight,c))
					return false;
				break;
			case 'd':
				if(strchr(pLeft,c)== NULL)
					return false;
				break;
		}		
	} 
	return true;
} 

 运行结果：