题解 | #数位之和#
数位之和
https://www.nowcoder.com/practice/5e85cc26475449648e668aa98e92d05b
#include <stdio.h>
int main() {
//求一个整数的所有数位之和
int n = 0;
scanf("%d",&n);
int sum = 0;
while (n>0) {
sum = sum +n%10;
//运行超时的原因:循环始终运行
n = n/10; //去掉了后一位
}
printf("%d",sum);
return 0;
}
