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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. int check[1000] = {0}, n, sum = 0;
  5. for(int i = 0 ; i < 10 ; i++){
  6. scanf("%d",&n);
  7. check[n] = 1;
  8. if(check[n]!=1) sum++;
  9. }
  10. printf("%d",sum);
  11.  
  12. return 0;
  13. }
  14.  
Success #stdin #stdout 0s 5280KB
stdin
1
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stdout
Standard output is empty