URI Problem 1214 Solution Above Average - URI Online Judge Solution

URI Online Judge Solution 1214 Above Average Using C, Python Programming Language.

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

Input

The input contains many test cases. The first line of standard input contains an integer C, 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 3 decimal places.

Sample Input	Sample Output
5 5 50 50 70 80 100 7 100 95 90 80 70 60 50 3 70 90 80 3 70 90 81 9 100 99 98 97 96 95 94 93 91	40.000% 57.143% 33.333% 66.667% 55.556%

Solution Using C:

#include<stdio.h>
int main()
{
    int T;
    scanf("%d",&T);
    while(T--)
    {
        int n,i,s=0,c=0;
        float x=0.0;
        scanf("%d",&n);
        int arr[n];
        for(i=0; i<n; i++)
        {
            scanf("%d",&arr[i]);
            s += arr[i];
        }
        x = (float)s/(float)n;
        for(i=0; i<n; i++)
        {
            if(x<(float)arr[i])
                c++;
        }

        printf("%.3f%%\n",((float)c*100)/(float)n);
    }
    return 0;
}