题解 | 数位之和
数位之和
https://www.nowcoder.com/practice/5e85cc26475449648e668aa98e92d05b
#include <iostream>
#include <cmath>
using namespace std;
int main() {
int n = 0, sum = 0;
cin >> n;
n = abs(n);
while (n>0)
{
sum += n % 10;
n /= 10;
}
cout << sum << endl;
}
// 64 位输出请用 printf("%lld")