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  1. #include <stdio.h>
  2. #include <math.h>
  3. typedef struct {
  4.     int id;
  5.     int height;
  6.     int weight;
  7. } Body;
  8.  
  9. int main(void) {
  10.     Body data[] = {
  11.         {1, 165, 60},
  12.         {2, 170, 68},
  13.         {3, 160, 50},
  14.         {4, 180, 75},
  15.         {5, 175, 80}
  16.     };
  17.     for (int i = 0; i < 4; i++) {
  18.         for (int j = 0; j < 4-i; j++) {
  19.             if (data[j].height > data[j+1].height) {
  20.                 Body temp = data[j];
  21.                 data[j] = data[j+1];
  22.                 data[j+1] = temp;
  23.             }
  24.         }
  25.     }
  26.     for(int i=0;i<5;i++){
  27.     	printf("id:%d\n",data[i].id);
  28.     	printf("height:%d\n",data[i].height);
  29.     	printf("weight:%d\n",data[i].weight);
  30.     }
  31.     double sum=0.0,ave,std=0.0;
  32.     for (int i=2;i<5;i++) {
  33.         sum += data[i].height;
  34.     }
  35.     ave=sum/3.0;
  36.  
  37.     for (int i=2; i<5; i++) {
  38.         std +=(data[i].height-ave)*(data[i].height-ave);
  39.     }
  40.     std = sqrt(std / 3.0);
  41.     printf("\n身長が高い3名の平均身長: %.1f \n", ave);
  42.     printf("標準偏差: %.1f \n", std);
  43. return 0;
  44. }
Success #stdin #stdout 0s 5320KB
comments (?)
stdin 
Standard input is empty
stdout 
id:3
height:160
weight:50
id:1
height:165
weight:60
id:2
height:170
weight:68
id:5
height:175
weight:80
id:4
height:180
weight:75

身長が高い3名の平均身長: 175.0 
標準偏差: 4.1
https://ideone.com/Cr6ucQ
language:
C99 (gcc 8.3)
created:
4 days ago
visibility:
public

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