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  1. #include <iostream>
  2. #include <string>
  3. #include <cstdlib>
  4. #include <cmath>
  5.  
  6. using namespace std;
  7.  
  8. int main(void) {
  9. 	int C = 0;
  10. 	int N = 0;
  11. 	cin >> C;
  12. 	for(int i=0; i<C; i++) {
  13.  
  14. 		cin >> N;
  15.  
  16. 		int student[N] = {0, };
  17.  
  18. 		int count = 0;
  19. 		double score = 0, score_total=0;
  20.  
  21. 		for(int i=0; i<N; i++) {
  22. 			cin >> student[i];
  23. 		}
  24.  
  25. 		for(int i=0; i<N; i++) {
  26. 			score_total += student[i];
  27. 		}
  28. 		score = score_total/N;
  29.  
  30. 		for(int i=0; i<N; i++) {
  31. 			if(student[i] > score) {
  32. 				count++;
  33. 			}
  34. 		}
  35. 		score = ((double)count/N)*100;
  36. 		cout.setf(ios::showpoint);
  37. 		cout.precision(5);
  38. 		cout << round(score*1000)/1000 << "%" << endl;
  39. 	}
  40. 	return 0;
  41. }
Success #stdin #stdout 0s 4264KB
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https://ideone.com/Dprvy7
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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