Home » Add digits of number

Add digits of number

C program to add digits of a number: Here we are using modulus operator(%) to extract individual digits of number and adding them.

 

#include <stdio.h>

int main()
{
   int n, sum = 0, remainder;

   printf("Enter an integer\n");
   scanf("%d",&n);

   while(n != 0)
   {
      remainder = n % 10;
      sum = sum + remainder;
      n = n / 10;
   }

   printf("Sum of digits of entered number = %d\n",sum);

   return 0;
}
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