统计难题

bananabandbeeabsoluteacmbabbandabc Sample Output
2310
#include<iostream>#include<string>#include<map>#include<string.h>using namespace std;int main(){	char a[20],b[20];	map<string,int>s;	s.clear();//清零	while(gets(a),a[0]!='/0')	{		for(int i=strlen(a);i>=0;i--)		{			a[i]='/0';			s[a]++;			//banana			//banan			//bana			//ban			//ba			//b        }	 } 	 while(gets(b))	 {	 	cout<<s[b]<<endl;	 }    return 0;}