Description
Alice and Bob are in their class doing drills on multiplication and division. They quickly get bored and instead decide to play a game they invented.
The game starts with a target integer N≥2N≥2 , and an integer M=1M=1. Alice and Bob take alternate turns. At each turn, the player chooses a prime divisor p of N, and multiply M by p. If the player’s move makes the value of M equal to the target N, the player wins. If M>NM>N , the game is a tie. Assuming that both players play optimally, who (if any) is going to win?
Input
The first line of input contains T(1≤T≤10000)T(1≤T≤10000) , the number of cases to follow. Each of the next T lines describe a case. Each case is specified by N(2≤N≤231−1)N(2≤N≤231−1) followed by the name of the player making the first turn. The name is either Alice or Bob.
Output
For each case, print the name of the winner (Alice or Bob) assuming optimal play, or tie if there is no winner.
Sample Input
10 10 Alice 20 Bob 30 Alice 40 Bob 50 Alice 60 Bob 70 Alice 80 Bob 90 Alice 100 Bob
Sample Output
Bob Bob tie tie Alice tie tie tie tie Alice
Hint
博弈论；质因数分为 一种，两种，和多种，多种必平局，一种时，该质因数数量为奇数时，第一个人胜，偶数则第二个人胜；
两种时，若两种数量相同，则第二个人胜，若相差一个，则第一个胜，否则平局。
#include<iostream>
#include<cstdio>
#include<cmath>
#include<vector>
#include<cstring>
using namespace std;
const int mod = 1e9+7;
typedef long long ll;
const int maxn = 1e5+100;
int prime[maxn+10];
bool vis[maxn];
ll cnt;
void judge(int n)
{
cnt=0;
vis[1]=true;
ll i,j;
for(i=2; i<=n; i++)
{
if(!vis[i])
{
prime[cnt++]=i;
}
for(j=0; j<cnt && i*prime[j] <= n; j++)
{
vis[i*prime[j]]=true;
if(i%prime[j]==0) break;
}
}
}
int main()
{
judge(maxn);
int T;
cin>>T;
while(T--)
{
ll n;
string ss;
cin>>n>>ss;
int ret = 0;
vector<int> v;
for(int i=0; i<cnt; i++)
{
if(n%prime[i]==0)
{
ret++;
int tmp=0;
while(n%prime[i]==0)
{
n/=prime[i];
tmp++;
}
v.push_back(tmp);
}
if(ret>=3) break;
}
if(n>1)
{
ret++;
v.push_back(1);
}
if(ret>=3) cout<<"tie"<<endl;
else if(ret==1)
{
if(v[0]%2==0)
{
if(ss=="Alice") cout<<"Bob"<<endl;
else cout<<"Alice"<<endl;
}
else
{
if(ss!="Alice") cout<<"Bob"<<endl;
else cout<<"Alice"<<endl;
}
}
else if(ret==2)
{
if(v[1]==v[0])
{
if(ss=="Alice") cout<<"Bob"<<endl;
else cout<<"Alice"<<endl;
}
else
{
if(abs(v[0]-v[1])==1)
{
if(ss!="Alice") cout<<"Bob"<<endl;
else cout<<"Alice"<<endl;
}
else cout<<"tie"<<endl;
}
}
else cout<<ss<<endl;
}
return 0;
}
/**********************************************************************
Problem: 2115
User: song_hai_lei
Language: C++
Result: AC
Time:1456 ms
Memory:2512 kb
**********************************************************************/