机试教程 10

#include <stdio.h>#include <stdlib.h>int main(){int n,x,m;int i,j,k;while(scanf("%d",&n)!=EOF&&n!=0){int hash[101]={0};//for(i=0;i<n;i++){scanf("%d",&x);hash[x]++;}scanf("%d",&m);printf("%d\n",hash[m]);}return 0;}