sum of two numbers in c program code example

Example 1: addition of two numbers in c

int num1,num2;
printf("%d",num1+num2);

Example 2: c program to find the sum of given number

# include<stdio.h>
int main
{
int number;
int sum=0;
int remainder;
printf("enter a number\n");
scanf("%d",&number);
for(;number!=0;)
{
remainder=number%10;
sum=sum+remainder;
number=number/10;
}
printf("sum of digits=%d",sum);
}