reverse number using recursion in c program

/****************************************************** * File : reverse-given-number-using-recursion.c * Author : Saurabh Gupta * Source : http://saurabhgupta0527.blogspot.com/ * Created : AM 11:29 10 September 2011 *****************************************************/ #include<stdio.h> #include <stdlib.h> #include <unistd.h> int reverse (int); int main(int argc, char** argv){ int nNumber,nReverse; printf("Enter a number : "); scanf("%d",&nNumber); nReverse = reverse(nNumber); printf("Number after reverse is : %d",nReverse); printf ("\n"); return 0; } int sum = 0, r; int reverse(int nNumber){ if(nNumber){ r = nNumber%10; sum = sum*10 + r; reverse(nNumber/10); } else { return sum; } return sum; } /* * OUTPUT * [sgupta@rhel54x64 c]$ [sgupta@rhel54x64 c]$ ./reverse-given-number-using-recursion Enter a number : 123 Number after reverse is : 321 [sgupta@rhel54x64 c]$ */ See also
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