[Baekjoon] 4344번 : 평균은 넘겠지

https://www.acmicpc.net/problem/4344

4344번: 평균은 넘겠지

 

정답코드

#include <stdio.h>

int main() {
	int c, n, arr[1000] = { 0 },sum,count;
	double avg;
	scanf("%d", &c);

	for (int i = 0; i < c; i++) {
		sum = 0;
		count = 0;
		scanf("%d", &n);
		for (int j = 0; j < n; j++) {
			scanf("%d", &arr[j]);
			sum += arr[j];
		}
		avg = (double)sum / n;
		for (int j = 0; j < n; j++) {
			if ((double)arr[j] > avg)	count++;
		}

		printf("%.3f%%\n", ((double)count / n)*100.0);
	}

}