似乎不是这个原因吧。这题我用iostream过了……
#include<iostream.h>
#include<string.h>

/*#include<fstream.h>
#define cin fin
ifstream fin("1184.txt");
*/
char str1[3][20],str2[3][20],str3[3][5];
int len[3];
int rec[13];

int judge()
{
	int i,j;	int left,right;
	for(i=0;i<=2;i++)
	{
		left=0;	right=0;
		for(j=0;j<=len[i]-1;j++)
		{
			left=left+rec[str1[i][j]-'A'+1];
			right=right+rec[str2[i][j]-'A'+1];
		}
		if(left!=right && strcmp(str3[i],"even")==0)	return 0;
		if(left<=right && strcmp(str3[i],"up")==0)	return 0;
		if(left>=right && strcmp(str3[i],"down")==0)	return 0;
	}
	return 1;
}

int main()
{
	int cases;	int ct,i;
	cin>>cases;
	for(;cases>0;cases--)
	{
		for(ct=0;ct<=2;ct++)
		{
			cin>>str1[ct]>>str2[ct]>>str3[ct];
			len[ct]=strlen(str1[ct]);
		}
		for(i=1;i<=12;i++)
			rec[i]=1;
		for(i=1;i<=12;i++)
		{
			rec[i]=2;
			if(judge())
			{
				cout<<char('A'+i-1)<<" is the counterfeit coin and it is heavy.\n";
				break;
			}
			rec[i]=0;
			if(judge())
			{
				cout<<char('A'+i-1)<<" is the counterfeit coin and it is light.\n";
				break;
			}
			rec[i]=1;
		}
	}
	return 1;
}