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  1. #include <iostream>
  2. #include <string>
  3. #include <cstdlib>
  4. #include <cmath>
  5. #include <cstdio>
  6. #include <iomanip>
  7.  
  8. using namespace std;
  9.  
  10. int main(void) {
  11. 	int C = 0;
  12. 	int N = 0;
  13. 	cin >> C;
  14. 	for(int i=0; i<C; i++) {
  15.  
  16. 		cin >> N;
  17.  
  18. 		double student[N] = {0, };
  19.  
  20. 		int count = 0;
  21. 		double score = 0;
  22. 		int score_total=0;
  23.  
  24. 		for(int j=0; j<N; j++) {
  25. 			cin >> student[j];
  26. 		}
  27.  
  28. 		for(int j=0; j<N; j++) {
  29. 			score_total += (double)student[j];
  30. 		}
  31. 		score = (double)score_total/(double)N;
  32.  
  33. 		for(int j=0; j<N; j++) {
  34. 			if(student[j] > score) {
  35. 				count++;
  36. 			}
  37. 		}
  38. 		score = ((double)count/(double)N)*(double)100;
  39. 		cout << fixed;
  40. 		cout << setprecision(3);
  41. 		cout << (double)round(score*1000)/(double)1000 << "%" << endl;
  42. 	}
  43. 	return 0;
  44. }
Success #stdin #stdout 0s 4524KB
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https://ideone.com/84g3DY
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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