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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4.     int sum = 0;
  5.     double ave = 0;
  6.     int a[] = {3, 5, 2, 4, 1, 9, 7, 6, 0, 8};
  7.     int max = a[0], x = 0;
  8.  
  9.     for (int i = 0; i < 10; i++) {
  10.         sum = sum + a[i];
  11.     }
  12.     ave = (double)sum / 10;
  13.  
  14.     for (int i = 1; i < 10; i++) {
  15.         if (max < a[i]) {
  16.             max = a[i];
  17.             x = i;
  18.         }
  19.     }
  20.  
  21.     printf("最大値は %d\n", max);
  22.     printf("最大値の場所は a[%d]\n", x);
  23.     printf("平均は %.2f です\n", ave);
  24.  
  25.     int secondmax = -1;
  26.     int y = -1;
  27.     for (int i = 0; i < 10; i++) {
  28.         if (a[i] != max) {
  29.             if (secondmax == -1 || a[i] > secondmax) {
  30.                 secondmax = a[i];
  31.                 y = i;
  32.             }
  33.         }
  34.     }
  35.  
  36.     printf("2番目に大きい値は %d\n", secondmax);
  37.     printf("その場所は a[%d]\n", y);
  38.  
  39.     return 0;
  40. }
  41.  
Success #stdin #stdout 0.01s 5328KB
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stdin
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Standard input is empty
stdout
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最大値は 9
最大値の場所は a[5]
平均は 4.50 です
2番目に大きい値は 8
その場所は a[9]
https://ideone.com/i3fdjP
language:
C (gcc 8.3)
created:
10 days ago
visibility:
public

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