Multiplication of number using recursion

#include<stdio.h>
#include<conio.h>
main()
{
      int a,b;
      int sum(int a,int b);
      printf("Enter the 1st number :");
      scanf("%d",&a);
      printf("Enter the 2nd number :");
      scanf("%d",&b);
      printf("\n the multiplication %d",sum(a,b));
      getch();
      return 0;
}
int sum(int a,int b)
{
    if(a==0||b==0)
    return 0;
    if(b==1)
    return a;
return (a+sum(a,b-1));
}

Posted in: Data Structure,Recursion

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