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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. typedef struct {
  5.     int id;
  6.     int height;
  7.     int weight;
  8. } Body;
  9.  
  10.  
  11. int main(void) {
  12. 	Body data[5] = {
  13. 		{1, 165, 60},{2, 170, 68},{3, 160, 50},{4, 180, 75},{5, 175, 80}
  14. 	};
  15.  
  16. 	Body a;
  17.  
  18. 	for(int i=0; i < 4; i++){
  19. 		for(int j=i+1; j < 5; j++){
  20. 			if (data[i].height > data[j].height) {
  21.                 a = data[i];
  22.                 data[i] = data[j];
  23.                 data[j] = a;
  24. 			}
  25. 		}
  26. 	}
  27.  
  28. 	printf("id height weight\n");
  29. 	for (int i=0; i < 5; i++) {
  30.         printf("%d %d %d\n", data[i].id, data[i].height, data[i].weight);
  31.     }
  32.  
  33.     double ave, std;
  34.     ave = (data[2].height + data[3].height + data[4].height) / 3.0;
  35.  
  36. 	std = sqrt(
  37.         ((data[2].height - ave) * (data[2].height - ave) +
  38.          (data[3].height - ave) * (data[3].height - ave) +
  39.          (data[4].height - ave) * (data[4].height - ave)) / 3.0
  40.     );
  41.  
  42.      printf("\n平均身長 ave = %.1f\n", ave);
  43.     printf("標準偏差 std = %.1f\n", std);
  44. 	return 0;
  45. }
  46.  
Success #stdin #stdout 0s 5320KB
comments (?)
stdin 
Standard input is empty
stdout 
id height weight
3 160 50
1 165 60
2 170 68
5 175 80
4 180 75

平均身長 ave = 175.0
標準偏差 std = 4.1
https://ideone.com/p2pZ1K
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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