1053 住房空置率

#include <bits/stdc++.h>
using namespace std;
const int inf = 0x3f3f3f3f;
#define ll long long
int main() {
	int n,d;
	double e;//阈值
	int ke=0,kong=0;//数量
	cin>>n>>e>>d;
	for(int i=0; i<n; i++) {
		int count;
		cin>>count;
		double in;
		int days=0;
		for(int j=0; j<count; j++) {
			cin>>in;
			if(in<e) {
				days++;
			}
		}
		if(days>(double)count/2 && count>d) {
			kong++;
		} else if(days>(double)count/2) {
			ke++;
		}
	}
	//cout << ke << " " << kong << '\n';
	printf("%.1lf%% ",(double)ke/n*100);
	printf("%.1lf%%",(double)kong/n*100);
	return 0;
}