先画一下N=2的情况,先手胜,再画一下N=3的情况,先手胜,所以大胆的猜测,无论N=多少,先手胜!!
这也能A真是个奇迹
#include<map> #include<set> #include<cmath> #include<queue> #include<stack> #include<vector> #include<cstdio> #include<cassert> #include<iomanip> #include<cstdlib> #include<cstring> #include<iostream> #include<algorithm> #define pi acos(-1) #define ll long long #define mod 1000000007 #define ls l,m,rt<<1 #define rs m+1,r,rt<<1|1 #pragma comment(linker, "/STACK:1024000000,1024000000") using namespace std; const double g=10.0,eps=1e-9; const int N=1000000+10,maxn=1234567,inf=11111; int main() { ios::sync_with_stdio(false); cin.tie(0); int n; while(cin>>n){ if(n==-1)break; cout<<"I bet on Oregon Maple~"<<endl; } return 0; }