• INM season 2 ended!!!

INM has ended!!!!! Oh, what a season! Although this season's very short, we did pretty many things and seems it's better than INM season 1. Thanks to all member's efforts! What we did: super slow exp machine super slow slime farm not so slow iron ……
HDD 2019-08-31
• [艾志康]基础积分常用公式[持续更新]

$1.\int{\frac{1}{\sqrt{x^2±a^2}}}dx=ln|x+\sqrt{x^2+a^2}|+C(a>0)$ $1.5.特别地, \int{\frac{1}{\sqrt{x(x+a)}}}dx=ln(\sqrt{x}+\sqrt{x+a})+C(a>0)$ $2.\int{tan^2(x)}dx=tanx-x+C$ $3.\int{\frac{1}{x^2+a^2}}dx=\frac{arctan{(\frac{x}{a})}}{a}+C$ \$4.\int{\fra……
HDD 2019-08-31
• Green Boy Can't You Solve It Out?

2 problems for div3 participants Bomb Defusing II Statement Find how many years in range [l,r] that it has Sept.1 as a weekend(Sunday and Saturday)? Example l=2017,r=2019 out=2 2018/9/1 is Saturday while 2019/9/1 is Sunday Constriants (Div2A-Div2B)……
XGN 2019-08-31
• Orange Boy Can You Solve It Out? Ep. 21.8

思考题 within 5 min Bomb defusing 「Readers, please set up a 5-minute timer before you continue to read」 Green boy envied Orange Boy for having such a high rating. So he decided to send Orange Boy a present: a bomb! The bomb will explode in 5 minu……
XGN 2019-08-28
• Orange Boy Can You Solve It Out? Ep.21.5

APPROXIMATE PROBLEM WARNING Metro There are N metro stations in a city. The distance between each two station is a fixed integer x. Your task is to construct some metro lines across the stations. We define a cost from station A to station B as the ……
XGN 2019-08-25
• Orange Boy Can You Solve It Out? Ep.21

思考题 for bread Bread Story You have a piece of bread which can be seen as a N*M grid. You also have a bottle of jam. You want to put some jam on the bread to make the bread delicious. You can do the following two operations: Put 1 unit of jam on……
XGN 2019-08-24
• Forge Server Season1 Ended

You can see the mod list here : modlist You can download the server pack here You can download the client pack here
carott 2019-08-23
• [搬运]zky越来越菜了呢

XIZCM今天上课的时候叫我填个坑，我想如果以后高一要停课可以给个集训经验参考，就同意转载一下 以下两篇都是我之前写的blog 2019： zhengruioi 2019金华峰会游记 马上模拟赛开始了，zhengruioi.com 用起来了，这篇blog应该会被翻出来吧 我是跳跳 序： 今年是我第二年……
ZhukyRLG 2019-08-23