Check out example codes for "adding digits of a number in c". It will help you in understanding the concepts better.

Code Example 1

Enter the number 300 Given number = 300 Sum of the digits 300 = 3     Enter the number 16789 Given number = 16789 Sum of the digits 16789 = 31

Code Example 2

//program to find the sum of digits:  #include<stdio.h> int main() {   int num,sum=0,r,temp;   printf("Enter the number:\n ");  //taking input from the user   scanf("%d",&num);      temp=num;           //assigning num to temporary variable      while(temp!=0)   {     r=temp%10;     sum=sum+r;     temp=temp/10;   }   printf("\nGiven number = %d",num);   printf("\nSum of the digits = %d",sum); }  //code By dungriyal

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