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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. int main(void) {
  11.  
  12. 	Body data[5]={
  13. 		{1,165,60},
  14. 		{2,170,68},
  15. 		{3,160,50},
  16. 		{4,180,75},
  17. 		{5,175,80},
  18. 	};
  19.  
  20. 	int n=5;
  21.  
  22. 	for(int i=0;i<n-1;i++){
  23. 		for(int j=0;j<n-i-1;j++){
  24. 			if(data[j].height > data[j+1].height){
  25. 				Body temp=data[j];
  26. 				data[j]=data[j+1];
  27. 				data[j+1]=temp;
  28. 			}
  29. 		}
  30. 	}
  31. 	printf("身長の低い順\n");
  32.  
  33. 	for(int i=0;i<n;i++){
  34. 		printf(" %d \ %d \ %d\n",data[i].id,data[i].height,data[i].weight);
  35. 	}
  36. 	printf("\n");
  37.  
  38. 	double sum=0;
  39. 	int count=3;
  40. 	int start=n-count;
  41.  
  42. 	for(int i=start;i<n;i++){
  43. 		sum += data[i].height;
  44. 	}
  45. 	double ave = sum/count;
  46.  
  47. 	double sumh=0;
  48. 	for(int i=start;i<n;i++){
  49. 		sumh += (data[i].height-ave)*(data[i].height-ave);
  50. 	}
  51. 	double std = sqrt(sumh/count);
  52.  
  53. 	printf("上位3名の平均：%.1f cm\n",ave);
  54. 	printf("上位３名の標準偏差：%.1f\n",std);
  55. 	return 0;
  56. }
  57.  
  58.  
  59.  
  60.  
  61.  
Success #stdin #stdout 0s 5312KB
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stdout
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身長の低い順
 3  160  50
 1  165  60
 2  170  68
 5  175  80
 4  180  75

上位3名の平均：175.0 cm
上位３名の標準偏差：4.1
https://ideone.com/wPrKvj
language:
C (gcc 8.3)
created:
10 days ago
visibility:
public

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