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