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  1. #include <stdio.h>
  2.  
  3. int main(int argc, char** argv) {
  4.     int a, i, j, c = 0;
  5.     scanf("%d", &a);
  6.     int vetor[a];
  7.     for (i = 0; i < a; i++) {
  8.         scanf("%d", &vetor[i]);
  9.     }
  10.     for (i = 0; i < a; i++) {
  11.         for (j = i + 1; j < a; j++) {
  12.             if (vetor[i] == vetor[j]) {
  13.                 c++;
  14.             }
  15.         }
  16.     }
  17.     printf("%d\n", c);
  18.     return 0;
  19. }
Success #stdin #stdout 0s 9432KB
comments (?)
stdin 
5 10 11 12 12 13
stdout 
1
https://ideone.com/jmh04h
language:
C (gcc 8.3)
created:
6 years ago
visibility:
public

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