sum of digits in c using for loop
#include <stdio.h>
int main()
{
int n, sum = 0, r;
printf("Enter a number\n");
for (scanf("%d", &n); n != 0; n = n/10) {
r = n % 10;
sum = sum + r;
}
printf("Sum of digits of a number = %d\n", sum);
return 0;
}
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