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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. int n,sum=1,i=1;
  5. scanf ("%d",&n);
  6. do{
  7. sum=sum*i;
  8. i=i+1;
  9. }while(i<=n);
  10. printf("%d",sum);
  11. return 0;
  12. }
  13.  
Success #stdin #stdout 0.01s 5288KB
stdin
4
stdout
24