Write a program to calculate sum of digits of a given n digit number using recursion.

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written 7.9 years ago by

rajapatle • 120

modified 2.8 years ago by

pedsangini276 • 4.8k

Mumbai University> FE > Sem 2> STRUCTURED PROGRAMMING APPROACH

Marks: 8 M

Year: Dec 2016

structured programming approach

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1 Answer

132views

written 7.9 years ago by

rajapatle • 120

#include<stdio.h>
#include<conio.h>
int sum(int a);
main();
{
int num,result;
printf(“Enter a Number: ”);
scanf(“%d”,&num);
result=sum(num);
printf(“Sum of digit is %d”,result);
getch();
}

int sum(int a)
{
if(num!=0)
{
    return(num%10+sum(num/10));
}
else
{
    return 0;
}
}

Output:
Enter a number: 1234
Sum of digit is 10

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