斐波那契博弈 hdu2516 取石子游戏

#include<map>
#include<set>
#include<cmath>
#include<ctime>
#include<stack>
#include<queue>
#include<cstdio>
#include<cctype>
#include<string>
#include<vector>
#include<cstring>
#include<iostream>
#include<algorithm>
#include<functional>
#define fuck(x) cout<<"["<<x<<"]"
#define FIN freopen("input.txt","r",stdin)
#define FOUT freopen("output.txt","w+",stdout)
using namespace std;
typedef long long LL;

const int MX = 50;
LL F[MX];

void presolve() {
F[1] = 1; F[2] = 2;
for(int i = 3; i < 50; i++) {
F[i] = F[i - 1] + F[i - 2];
}
}

bool solve(int n) {
for(int i = 1; i < MX; i++) {
if(F[i] == n) return false;
}
return true;
}

int main() {
presolve();
int n; //FIN;
while(~scanf("%d", &n), n) {
printf("%s\n", solve(n) ? "First win" : "Second win");
}
return 0;
}