| #The Biggest Water Problem#
The Biggest Water Problem
https://www.nowcoder.com/practice/435aa556e093463891f6da7d322140a4
#include <stdio.h>
int f(int n)
{
while(1)
{
n=n%10+n/10;
if(n>=10)
f(n);
else
return n;
}
}
int main()
{
int n;
scanf("%d",&n);
printf("%d",f(n));
return 0;
}
#菜狗的解题#
