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  1. #include <stdio.h>
  2. #define MAX 100
  3.  
  4. int seiseki[MAX];
  5. int size=0;
  6. int record(int a){
  7.     if (size < MAX) {
  8.         seiseki[size] = a;
  9.         size++;
  10.     }
  11.     return 0;
  12. }
  13.  
  14. double average(){
  15.     int i;
  16.     int sum = 0;
  17.     if (size == 0) return 0.0;
  18.  
  19.     for (i = 0; i < size; i++) {
  20.         sum += seiseki[i];
  21.     }
  22.     return (double)sum / size;
  23. }
  24.  
  25.  
  26. double cond_average(int a, int b) {
  27.     int i;
  28.     int sum = 0;
  29.     int count = 0; 
  30.  
  31.     for (i = 0; i < size; i++) {
  32.         // 点数が a点以上 かつ b点以下 であるか判定
  33.         if (seiseki[i] >= a && seiseki[i] <= b) {
  34.             sum += seiseki[i];
  35.             count++;
  36.         }
  37.     }
  38.  
  39.     if (count == 0) {
  40.         return 0.0;
  41.     }
  42.  
  43.     return (double)sum / count;
  44. }
  45.  
  46. int main(){
  47.     int score,num,i;
  48.     scanf("%d",&num);
  49.     printf("num=%d\n",num);
  50.     for(i=0;i<num;i++){
  51.         scanf("%d", &score);
  52.         printf("score=%d\n",score);
  53.         record(score);
  54.     }
  55.  
  56.     printf("Ave=%lf\n", average());
  57.  
  58.     printf("Cond_Ave=%lf\n", cond_average(60, 100));
  59.  
  60.     return 0;
  61. }
Success #stdin #stdout 0s 5312KB
comments (?)
stdin
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2
60
90
stdout
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num=2
score=60
score=90
Ave=75.000000
Cond_Ave=75.000000
https://ideone.com/ffzLHJ
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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