题解 | 数位之和
数位之和
https://www.nowcoder.com/practice/5e85cc26475449648e668aa98e92d05b
#include <stdio.h>
int main() {
int n, sum = 0;
scanf("%d", &n);
n = n < 0 ? -n : n;
while (n) {
sum += n%10;
n/=10;
}
printf("%d", sum);
return 0;
}
