题解 | The Biggest Water Problem
The Biggest Water Problem
https://www.nowcoder.com/practice/435aa556e093463891f6da7d322140a4
#include <stdio.h>
int out(int n)
{
int g=0;
while(n)
{
g+=n%10;
n/=10;
}
if(g>9)
{
return out(g);
}
else
return g;
}
int main()
{
int n;
scanf("%d",&n);
printf("%d",out(n));
return 0;
}
