Kattis-Above Average

Posted 2022-11-28 做一个AC梦

题目所述基本内容

It is said that 90% of frosh expect to be above average in their class. You are to provide a reality check.

输入输出样例

Input

The first line of standard input contains an integer 1≤C≤50, the number of test cases. C data sets follow. Each data set begins with an integer, N, the number of people in the class (1≤N≤1000). N integers follow, separated by spaces or newlines, each giving the final grade (an integer between 0 and 100) of a student in the class.

Output

For each case you are to output a line giving the percentage of students whose grade is above average, rounded to exactly 3 decimal places.

代码

#include<iostream>
#include<algorithm>
#include<iomanip>
#include<cmath>
using namespace std;

int main() 
	int n,m;
	int sum = 0;
	double average = 0.0;
	int count = 0;
    int a[1000];
	cin >> n;
    int p = 0;
    while (p < n) 
        cin >> m;
        for (int i = 0; i < m; i++) 
            cin >> a[i];
            sum = sum + a[i];
        
        average = sum / m;
        for (int i = 0; i < m; i++) 
            if (a[i] > average) 
                count++;
            
       
        for (int i = 0; i < m; i++) 
            a[i] = 0;
        
        cout << fixed << setprecision(3) << count * 100.0/ m<< "%" << endl;
        count = 0;
        p++;
        sum = 0;
        average = 0.0;
    

结束语

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