L2-3 简单博弈
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Description
小明和小红在玩游戏,游戏规则如下:每轮游戏随机给出三个数a,b,k,他们每次都可以选择一个数对(x,y)满足1<=x<=a,1<=y<=b,使得gcd(x,y)=k,每个数对只能使用一次,若最后没有数对可以选了即失败。小明是先手,问小明能否胜利。
Format
Input
一行三个整数a,b,k 1<=k,a,b<=5e4
Output
若小明胜利输出"YES",否则输出"NO"
Samples
7 12 3
NO
Limitation
1s, 1024KiB for each test case.
2024年团体程序设计竞赛天梯赛校内选拔
- Status
- Done
- Rule
- IOI
- Problem
- 8
- Start at
- 2024-3-22 20:00
- End at
- 2024-3-22 22:00
- Duration
- 2 hour(s)
- Host
- Partic.
- 45