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  1.  
  2. #include <stdio.h>
  3.  
  4. int swap_count = 0;
  5.  
  6. int cmp(int x, int y)
  7. {
  8.     return x > y;
  9. }
  10.  
  11. void swap(int *x, int *y)
  12. {
  13.     swap_count++;
  14.  
  15.     int tmp = *x;
  16.     *x = *y;
  17.     *y = tmp;
  18. }
  19.  
  20. int main(void)
  21. {
  22.     int a[] = {3, 1, 4, 1, 5, 9, 2, 6, 5};
  23.     size_t n = sizeof a / sizeof a[0];
  24.  
  25.     for (size_t i = 0; i < n - 1; ++i) {
  26.         int count = 0;
  27.  
  28.         for (size_t j = 0; j < n - 1 - i; ++j) {
  29.             if (cmp(a[j], a[j + 1])) {
  30.                 swap(&a[j], &a[j + 1]);
  31.                 count++;
  32.             }
  33.         }
  34.  
  35.         if (count == 0) {
  36.             break;
  37.         }
  38.     }
  39.  
  40.     for (size_t i = 0; i < n; ++i) {
  41.         printf("%d ", a[i]);
  42.     }
  43.  
  44.     printf("\n");
  45.     printf("swapの回数：%d回\n", swap_count);
  46.  
  47.     return 0;
  48. }
  49.  
Success #stdin #stdout 0s 5356KB
comments (?)
stdin
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Standard input is empty
stdout
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1 1 2 3 4 5 5 6 9 
swapの回数：10回
https://ideone.com/oXh0CF
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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