题目描述

成绩统计 - 蓝桥云课 (lanqiao.cn)

题目分析 

学会使用四舍五入函数round

#include<bits/stdc++.h>
using namespace std;
int s1, s2;
int main()
{
	int n, x;
	cin >> n;
	for(int i = 1; i <= n; i ++)
	{
		cin >> x; 
		if(x >= 60)s1 ++;
		if(x >= 85)s2 ++;
	}
	double ss1 = s1 * 1.0 / n;
	double ss2 = s2 * 1.0 / n;
	ss1 *= 100;
	ss2 *= 100;
	cout << round(ss1) << "%" << '\n';
	cout << round(ss2) << "%" << '\n';
	return 0;
}