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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <string.h>
  4.  
  5. void rev(int n){
  6.     if(n==0){
  7.         return;
  8.     }
  9.     printf("%d", n%10);
  10.     rev(n/10);
  11.  
  12. }
  13.  
  14. int main(void){
  15.     rev(123);
  16.     printf("\n");
  17.     rev(4567);
  18.     return 0;
  19. }
Success #stdin #stdout 0.01s 5320KB
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stdin
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Standard input is empty
stdout
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321
7654
https://ideone.com/rJtHNo
language:
C (gcc 8.3)
created:
4 days ago
visibility:
public

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