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