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  1. #include <stdio.h>
  2.  
  3. void swap( int* a, int* b )
  4. {
  5. 	int temp = *a;
  6. 	*a = *b;
  7. 	*b = temp;
  8. }
  9.  
  10. void sortTwoColor( int* a, int len )
  11. {
  12. 	int i, j;
  13.  
  14. 	i = 0;         
  15.      	j = 1;   
  16.  
  17.      while(i < len && j < len) 
  18.      {                 
  19.           if(a[i] && !a[j])
  20.           {                         
  21.               a[i] = 0;
  22.               a[j] = 1;
  23.               i += 2;
  24.               j += 2;
  25.            } 
  26.  
  27.            if(!a[i]) 
  28.               i += 2;  
  29.  
  30.            if(a[j])
  31.               j += 2;
  32.       }  
  33.  
  34.       int t = i;
  35.       while(i < len)
  36.       {
  37.           if(!a[i])
  38.           {
  39.               a[t] = 0;
  40.               a[i] = 1; 
  41.               t += 2;
  42.           }
  43.           i += 2; 
  44.       } 
  45.  
  46.       t = j; 
  47.       while(j < len)
  48.       {     
  49.           if(a[j]) 
  50.           {
  51.               a[t] = 1; 
  52.               a[j] = 0; 
  53.               t += 2;
  54.           } 
  55.           j += 2;
  56.        } 
  57. 	for( i = 0; i < len; ++i )
  58. 		printf( "%d ", a[i] );
  59. }
  60.  
  61. int main()
  62. {
  63. 	int arr[] = {0,0,0,0,1,1,1,1,1,1,1,1,0,0,0,0};//{ 0, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 0, 1, 0, 1, 1 };
  64. 	int size = sizeof( arr ) / sizeof( *arr );
  65.  
  66. 	sortTwoColor( arr, size );
  67.  
  68. 	return 0;
  69. }
Success #stdin #stdout 0.02s 1676KB
comments (?)
stdin
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Standard input is empty
stdout
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0 1 0 1 0 1 0 1 0 1 0 1 0 1 1 1
https://ideone.com/dYgBq
language:
C (gcc 8.3)
created:
11 years ago
visibility:
public

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