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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. int reverse(int, int);
  5.  
  6. int main()
  7. {
  8.     int number = 1234567890;
  9.  
  10.  
  11.     printf("Reversed number is %d\n", reverse(number, 0));
  12.     return 0;
  13. }
  14.  
  15. int reverse (int n, int power) {
  16.     static int reversed_number = 0;
  17.     int digit = n % 10;
  18.     if (n == 0) {
  19.         return reversed_number;
  20.     }
  21.     reversed_number = digit + reversed_number * pow(10, power);
  22.  
  23.  
  24.     if (power == 0) {
  25.     	reverse(n/10, power+1);
  26.     } else {
  27.     	reverse(n/10, power);
  28.     }
  29. }
  30.  
Success #stdin #stdout 0s 9432KB
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stdin
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Standard input is empty
stdout
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Reversed number is 987654321
https://ideone.com/IxJvVz
language:
C (gcc 8.3)
created:
7 years ago
visibility:
public

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