Write a C Program to Find the Sum of Individual Digits of Positive Integer

In this article, we will discuss how to write a C program to find the sum of individual digits of a positive integer.

ALGORITHM: 

Step 1: Start 

Step 2: Read n 

Step 3: Initialize sum ← 0 

Step 4: while(n!=0) Begin 

Step 5: r←n%10 

Step 6: sum←sum+r 

Step 7: n←n/10 End 

Step 8: Print “sum” 

Step 9: Stop

FLOWCHART:

Program: Write a C Program to Find the Sum of Individual Digits of Positive  Integer

#include<stdio.h>
#include<conio.h>
void main()
{
    int n,r,sum=0;
    clrscr();
    printf("ENTER A POSITIVE INTEGER \n");
    scanf("%d",&n);
    while(n!=0)
    {
        r=n%10;
        sum=sum+r;
        n=n/10;
    }
    printf("THE SUMOF INDIVIDUAL DIGITS OF A POSITIVE INTEGER IS -> %d",sum);
    getch();
}

SAMPLE INPUT:

ENTER A POSITIVE INTEGER
5 3 2 1

EXPECTED OUTPUT:

THE SUM OF INDIVIDUAL DIGITS OF A POSITIVE INTEGER IS -> 11 

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