




Sum of digits program in C
C program to sum each digit: We can write the sum of digits program in c language by the help of loop and mathematical operation only.
Sum of digits algorithm
To get sum of each digits by c program, use the following algorithm:

Step 1: Get number by user
Step 2: Get the modulus/remainder of the number
Step 3: sum the remainder of the number
Step 4: Divide the number by 10
Step 5: Repeat the step 2 while number is greater than 0.

Let's see the sum of digits program in C.

#include
 int main()  
{  
int n,sum=0,m;  
printf("Enter a number:");  
scanf("%d",&n);  
while(n>0)  
{  
m=n%10;  
sum=sum+m;  
n=n/10;  
}  
printf("Sum is=%d",sum);  
return 0;
} 


Output:

Enter a number:654
Sum is=15


Enter a number:123
Sum is=6













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