Multiplication Game
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
**********************************************************************/
Multiplication Game的更多相关文章
- POJ2505 A multiplication game[博弈论]
A multiplication game Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 6028 Accepted: ...
- 【数学】Matrix Multiplication
Matrix Multiplication Time Limit: 2000MS Memory Limit: 65536K Total S ...
- hdu 4920 Matrix multiplication bitset优化常数
Matrix multiplication Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/ ...
- 矩阵乘法 --- hdu 4920 : Matrix multiplication
Matrix multiplication Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/ ...
- Booth Multiplication Algorithm [ASM-MIPS]
A typical implementation Booth's algorithm can be implemented by repeatedly adding (with ordinary un ...
- hdu4951 Multiplication table (乘法表的奥秘)
http://acm.hdu.edu.cn/showproblem.php?pid=4951 2014多校 第八题 1008 2014 Multi-University Training Contes ...
- hdu4920 Matrix multiplication 模3矩阵乘法
hdu4920 Matrix multiplication Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 131072/131072 ...
- poj 1651 Multiplication Puzzle (区间dp)
题目链接:http://poj.org/problem?id=1651 Description The multiplication puzzle is played with a row of ca ...
- 矩阵连乘积 ZOJ 1276 Optimal Array Multiplication Sequence
题目传送门 /* 题意:加上适当的括号,改变计算顺序使得总的计算次数最少 矩阵连乘积问题,DP解决:状态转移方程: dp[i][j] = min (dp[i][k] + dp[k+1][j] + p[ ...
- Matrix Chain Multiplication[HDU1082]
Matrix Chain Multiplication Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (J ...
随机推荐
- 201871010114-李岩松《面向对象程序设计(java)》第六、七周学习总结
项目 内容 这个作业属于哪个课程 https://www.cnblogs.com/nwnu-daizh/ 这个作业的要求在哪里 https://www.cnblogs.com/nwnu-daizh/p ...
- 【Java】面向对象之继承
多个类中存在相同属性和行为时,将这些内容抽取到单独一个类中,那么多个类无需再定义这些属性和行为,只要继承那一个类即可.其中如图中所示,食草动物.食肉动物.兔子.羊.狮子.豹都可以称为子类,动物类称为父 ...
- 力扣(LeetCode)二进制间距 个人题解
输入:6 输出:1 解释: 6 的二进制是 0b110 . 示例 4: 输入:8 输出:0 解释: 8 的二进制是 0b1000 . 在 8 的二进制表示中没有连续的 1,所以返回 0 . 提示: 1 ...
- django_4数据库3——admin
生成admin界面 1.setting.py中,保证'django.contrib.admin',应用打开,django1.11默认打开的 2.url.py中的admin默认时打开的 3.对model ...
- sqlalchemy 源码分析之create_engine引擎的创建
引擎是sqlalchemy的核心,不管是 sql core 还是orm的使用都需要依赖引擎的创建,为此我们研究下,引擎是如何创建的. from sqlalchemy import create_eng ...
- PHP创建对象的6种方式
创建对象实例: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 ...
- iOS开发tips-PhotoKit
概述 PhotoKit应该是iOS 8 开始引入为了替代之前ALAssetsLibrary的相册资源访问的标准库,后者在iOS 9开始被弃用.当然相对于ALAssetsLibrary其扩展性更高,ap ...
- 【集训Day1 测试】选择课题
选择课题(bestproject) [问题描述] Robin 要在下个月交给老师 n 篇论文,论文的内容可以从 m 个课题中选择.由于课题数有限,Robin 不得不重复选择一些课题.完成不同课题的论文 ...
- Github上传大文件(超过100M)
上传大文件(超过100M)到Github 笔者上传操作100M的文件到Github,结果在push的时候会自动终止.然后提示无法上传大文件,就算删除再提交也是报错. 于是,本人写这篇博客就是为了解决这 ...
- FullGC排查心得
最近线上系统(JDK1.7)出现了多次FullGC,但是情况都不一样,今天有时间,将FullGC的排查思路以及如何解决记录下,供大家一起探讨. 场景一: 系统发布上线之后,里面收到如下告警信息: 内容 ...