题目地址

#include<cstdio>
#include<iostream>
#include<algorithm>
#include<string>
using namespace std;
int n,d;
double e;
int a,b;
int main(void)
{
	cin>>n>>e>>d;
	for(int i=0;i<n;i++) 
	{
		int k,s1,s2; cin>>k;
		s1=0,s2=0;
		for(int i=0;i<k;i++)
		{
			double x; cin>>x;
			if(x<e) s1++;
			else s2++;
		}
		if(s1>s2&&k>d) b++;
		else if(s1>s2) a++;
	}
	printf("%.1lf%% %.1lf%%\n",a*100.0/n,b*100.0/n);
	return 0;
}