hdu 2516 FIB博弈

分析请看：cxlove

 1 #include<iostream>
 2 #include<cstdio>
 3 #include<cstring>
 4 #include<algorithm>
 5 #include<cmath>
 6 #include<vector>
 7 #include<string>
 8 #include<map>
 9 #define LL long long
10 #define N 1000000
11 #define inf 1<<20
12 using namespace std;
13 int fib[50];
14 int main(){
15     fib[0]=1;fib[1]=2;
16     for(int i=2;i<45;i++)
17         fib[i]=fib[i-1]+fib[i-2];
18     int n;
19     while(scanf("%d",&n)!=EOF&&n){
20         int i=0;
21         for(i=0;i<45;i++)
22             if(fib[i]==n)
23                 break;
24         if(i<45)
25             puts("Second win");
26         else
27             puts("First win");
28     }
29     return 0;
30 }