UVA 10696

http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=24&page=show_problem&problem=1637

根据题意给出的公式，运用递归函数，求出结果

#include<stdio.h>  
int f91(int n)
{
 if(n<=100)
   return f91(f91(n+11));
   else if(n>=101)
     return n-10;//自定义递归函数
}
int main()
{
 int n;
 while(scanf("%d",&n)&&n)
    printf("f91(%d) = %d\n",n,f91(n));
 return 0;
}