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