[水]ZOJ1514

给若干个数，问那些数字出现超过1次以上

#include <iostream>using namespace std;int n,m;void Gao(){    int f[30000]={0};    int ans=0,x;    for (int i=0;i<m;i++)        scanf("%d",&x),f[x]++;    for (int i=1;i<=n;i++)        if (f[i]>=2)            ans++;    cout<<ans<<endl;}int main(){    //freopen("a.in","r",stdin);    while (cin>>n>>m &&(n||m))        Gao();    return 0;}