📅  最后修改于: 2022-03-11 15:04:36.400000             🧑  作者: Mango
#include
int getSum(unsigned long long n) {
int sum = 0;
for (; n; n /= 10)
sum += n % 10;
return sum;
}
int main(){
printf("Sum of digits = %d\n", getSum(555));
}