题解 | 求四位数各个数位之和
求四位数各个数位之和
https://www.nowcoder.com/practice/91fd90931d2847b5855075c11cf90d08
#include <stdio.h>
int main() {
int a,b;
int num=0;
scanf("%d",&a);
while(a){
b=a%10;
a=a/10;
num=num+b;
}
printf("%d",num);
return 0;
}
