【PAT】B1053 住房空置率（20 分）

#include<cstdio>
#include<string.h>
#include<algorithm>
using namespace std;

int main(){
    double e;int N,D;
    scanf("%d %lf %d",&N,&e,&D);
    int kong=0,may=0,zong=0;
    int tianshu;
    while(scanf("%d",&tianshu)!=EOF){
        zong++;
        int diyu=0;
        double temp;
        for(int i=0;i<tianshu;i++){
            scanf("%lf",&temp);
            if(temp<e) diyu++;
        }
        if(diyu>(tianshu/2)){
            if(tianshu>D) kong++;
            else may++;
        }
    }
    printf("%.1f%% %.1f%%",may/(double)zong*100,kong/(double)zong*100);
    return 0;
}