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  1. #include <stdio.h>
  2.  
  3. int count=0;
  4.  
  5. int cmp(int x, int y) // compare x and y
  6.  {
  7.  return x > y; // 1 if x > y, 0 otherwise
  8.  }
  9.  
  10.  void swap(int *x, int *y)
  11.  {
  12.  int tmp = *x;
  13.  
  14.  *x = *y;
  15.  *y = tmp;
  16.  }
  17.  
  18.  int main(void)
  19.  {
  20.  int a[] = {3, 1, 4, 1, 5, 9, 2, 6, 5}; // array to be sorted
  21.  size_t n = sizeof a / sizeof a[0]; // number of elements
  22.  
  23.  for (size_t i = 0; i < n - 1; ++i) {
  24.  	int swapcount=0;
  25.  for (size_t j = 0; j < n - 1 - i; ++j) {
  26.  if (cmp( a[j] , a[j+1] )) {
  27.  swap( &a[j] , &a[j+1] );
  28.      swapcount=1;
  29.  count++;
  30.  }
  31.  }
  32.  if (swapcount==0)
  33.      break;
  34.  }
  35.  
  36.  for (size_t i = 0; i < n; ++i) {
  37.  printf("%d ", a[i]);
  38.  }
  39.  printf("\n");
  40.  
  41.  printf("%d回",count);
  42.  
  43.  return 0;
  44.  }
Success #stdin #stdout 0s 544KB
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https://ideone.com/SjuFou
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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