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  1. #include <stdio.h>
  2.  
  3. #define SIZE(arr) (sizeof (arr) / sizeof (*arr))
  4.  
  5. int main(void)
  6. {
  7.     int arr[] = { 
  8.                     1, 1, 2, 3, 2, 2, 4, 5, 6, 2 
  9.                 };
  10.  
  11.     for (int i = 0; i < SIZE(arr); ++i)
  12.     {
  13.         int j;
  14.         for (j = 0; j < SIZE(arr); ++j)
  15.             if (arr[i] == arr[j] && i != j)
  16.                 break;
  17.         if (j == SIZE(arr))
  18.             printf("%d\n", arr[i]);
  19.     } 
  20. }
  21.  
Success #stdin #stdout 0.02s 1676KB
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https://ideone.com/FA2s1w
language:
C99 (gcc 8.3)
created:
11 years ago
visibility:
public

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