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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. int compare(const void *a, const void *b) 
  5. {
  6.     return (*(int *)a - *(int *)b);
  7. }
  8.  
  9. int Pasangan (int *arr, int n, int x) 
  10. {
  11.     int p = 0;
  12.     int q = n - 1;
  13.  
  14.     while (p < q) 
  15.     {
  16.         int jumlah = arr[p] + arr[q];
  17.  
  18.         if (jumlah == x) 
  19.         {
  20.             return 1; 
  21.         } 
  22.         else if (jumlah < x) 
  23.         {
  24.             p++;
  25.         } 
  26.         else 
  27.         {
  28.             q--;
  29.         }
  30.     }
  31.  
  32.     return 0; 
  33. }
  34.  
  35. int main() 
  36. {
  37.     int n, x;
  38.  
  39.     scanf("%d", &n);
  40.  
  41.     int arr[n];
  42.     for (int i = 0; i < n; i++) 
  43.     {
  44.         scanf("%d", &arr[i]);
  45.     }
  46.  
  47.     scanf("%d", &x);
  48.  
  49.     qsort(arr, n, sizeof(int), compare);
  50.  
  51.  
  52.     if (Pasangan (arr, n, x)) 
  53.     {
  54.         printf("YA\n");
  55.     } else 
  56.     {
  57.         printf("TIDAK\n");
  58.     }
  59.  
  60.     return 0;
  61. }
  62.  
Success #stdin #stdout 0.01s 5304KB
comments (?)
stdin 
5
2 7 1 9 10
11
stdout 
YA
https://ideone.com/EUTfYr
language:
C (gcc 8.3)
created:
2 years ago
visibility:
public

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