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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()
  11. {
  12.     int i, j;
  13.     float ave, std;
  14.  
  15.     int temp[1][3] = {0,0,0};
  16.  
  17.     Body data[] = {
  18.         {1,165,60},
  19.         {2,170,68},
  20.         {3,160,50},
  21.         {4,180,75},
  22.         {5,175,80},
  23.     };
  24.  
  25.     for(i=0;i<5;i++){
  26.         for(j=i+1;j<5;j++){
  27.             if(data[i].height > data[j].height){
  28.                 temp[0][0] = data[i].id;
  29.                 data[i].id = data[j].id;
  30.                 data[j].id = temp[0][0];
  31.                 temp[0][1] = data[i].height;
  32.                 data[i].height = data[j].height;
  33.                 data[j].height = temp[0][1];
  34.                 temp[0][2] = data[i].weight;
  35.                 data[i].weight = data[j].weight;
  36.                 data[j].weight = temp[0][2];
  37.             }
  38.         }
  39.     }
  40.  
  41.     for(i=0;i<5;i++){
  42.         printf("id=%d,",data[i].id);
  43.         printf("height=%d,",data[i].height);
  44.         printf("weight=%d\n",data[i].weight);
  45.     }
  46.  
  47.     ave = (data[2].height + data[3].height + data[4].height) / 3;
  48.     std = sqrt(((ave - data[2].height)*(ave - data[2].height)+(ave - data[3].height)*(ave - data[3].height)+(ave - data[4].height)*(ave - data[4].height))/3);
  49.  
  50.     printf("上位三人の平均=%.1lf,標準偏差=%.1lf",ave,std);
  51.     return 0;
  52. }
Success #stdin #stdout 0.01s 5288KB
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stdin
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Standard input is empty
stdout
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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
上位三人の平均=175.0,標準偏差=4.1
https://ideone.com/guZONA
language:
C (gcc 8.3)
created:
4 days ago
visibility:
public

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