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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. int num, rem,rev=0;
  5. printf("Enter the number: ");
  6. scanf("%d",&num);
  7. while(num<=1)
  8. {
  9. rem = num%10;
  10. rev = rev*10 + num;
  11. num = num/10;
  12. }
  13. printf("The Reverse number : %d", rev);
  14.  
  15. return 0;
  16. }
  17.  
Success #stdin #stdout 0s 4536KB
stdin
33456
stdout
Enter the number: The Reverse number : 0