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页次：1/5
每页50条记录，
本页显示1
到50，
共237
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#跟帖# 我倒是觉得，把人间的精华题搬到这里更有意义。
[脑筋急转] - Commentate(40 bytes )
2006-12-19
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#跟帖# Matrix ( < z_i, z_j > ) is positive definite.
[脑筋急转] - commentate(27 bytes )
2006-12-07
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On haha2000's disk area problem (can't solve it though)
[脑筋急转] - Commentate(1109 bytes )
2006-12-07
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换换花样，来道科学题。。。
[脑筋急转] - Commentate(176 bytes )
2006-11-14
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#跟帖# This is nice. My proof is very tedious.
[脑筋急转] - Commentate(20 bytes )
2006-11-02
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#跟帖# n/2^(n-1)
[脑筋急转] - Commentate(82 bytes )
2006-11-02
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#跟帖# 证总有一个两个相邻的角x,y, 都 120> x, y > 60度?
[脑筋急转] - Commentate(0 bytes )
2006-10-30
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#跟帖# 等边凸5边形 != 正5边形 ba?
[脑筋急转] - Commentate(0 bytes )
2006-10-30
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#跟帖# Deer without eye = Dr = doctor
[脑筋急转] - Commentate(0 bytes )
2006-10-23
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最后再出一题: 送电池 (三星)
[脑筋急转] - Commentate(260 bytes )
2006-07-22
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#跟帖# Cool, thanks!
[脑筋急转] - Commentate(0 bytes )
2006-07-20
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#跟帖# 太师? 不错不错, 太子的老师
[脑筋急转] - commentate(0 bytes )
2006-07-20
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#跟帖# Oh? oh!
[脑筋急转] - Commentate(0 bytes )
2006-07-20
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#跟帖# 不太清楚
[脑筋急转] - Commentate(0 bytes )
2006-07-20
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#跟帖# 回复：一个和恐龙有关的脑筋急转
[脑筋急转] - Commentate(34 bytes )
2006-07-20
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( 2.8★ ) Chameleons
[脑筋急转] - Commentate(434 bytes )
2006-07-20
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#跟帖# 1. 森林大着那, 其它九只鸟没听见.
[脑筋急转] - Commentate(0 bytes )
2006-07-19
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#跟帖# 回复：2006 IMO
[脑筋急转] - Commentate(222 bytes )
2006-07-19
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#跟帖# aglee
[脑筋急转] - Commentate(0 bytes )
2006-07-19
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#跟帖# 脑坛 Collectively 自杀？
[脑筋急转] - Commentate(0 bytes )
2006-07-19
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( ★ ) How many positive integers are there
[脑筋急转] - Commentate(83 bytes )
2006-07-17
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#跟帖# For 13 (might not be the best way)
[脑筋急转] - Commentate(186 bytes )
2006-07-14
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#跟帖# correct.
[脑筋急转] - Commentate(0 bytes )
2006-07-14
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#跟帖# Right, but I can't say constant, I94, haha2000,... are prohibite
[脑筋急转] - Commentate(0 bytes )
2006-07-14
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#跟帖# Sue me for discrimination?
[脑筋急转] - Commentate(0 bytes )
2006-07-14
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Digit Root (**)(math major people prohibited)
[脑筋急转] - Commentate(262 bytes )
2006-07-14
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#跟帖# Really? I sense you don't really know it.
[脑筋急转] - Commentate(0 bytes )
2006-07-14
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#跟帖# what is 吃皮蛋?
[脑筋急转] - Commentate(0 bytes )
2006-07-14
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#跟帖# 这个,.... 嘿嘿
[脑筋急转] - Commentate(0 bytes )
2006-07-13
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#跟帖# 对咯
[脑筋急转] - Commentate(0 bytes )
2006-07-13
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#跟帖# Yeah, real close.
[脑筋急转] - Commentate(0 bytes )
2006-07-13
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#跟帖# ah?1
[脑筋急转] - Commentate(0 bytes )
2006-07-13
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Get the answer in 1 minute
[脑筋急转] - Commentate(176 bytes )
2006-07-13
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#跟帖# Yeah, keeping the con- and 秋香
[脑筋急转] - Commentate(0 bytes )
2006-07-13
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#跟帖# 实验！oh bad bad
[脑筋急转] - Commentate(0 bytes )
2006-07-13
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#跟帖# Albany? Oswego?
[脑筋急转] - Commentate(0 bytes )
2006-07-13
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#跟帖# Me in Westchester
[脑筋急转] - Commentate(0 bytes )
2006-07-13
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#跟帖# I discovered that...
[脑筋急转] - Commentate(99 bytes )
2006-07-12
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#跟帖# Not decided yet
[脑筋急转] - Commentate(101 bytes )
2006-07-12
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I am bored by my ID, gonna change it.
[脑筋急转] - Commentate(0 bytes )
2006-07-12
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#跟帖# Don't worry, that answer is far from official.
[脑筋急转] - Commentate(0 bytes )
2006-07-11
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#跟帖# Sorry!
[脑筋急转] - Commentate(86 bytes )
2006-07-11
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#跟帖# One girl can never finish, because gtass grows faster
[脑筋急转] - Commentate(0 bytes )
2006-07-10
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#跟帖# 越来越觉得横队长就是禾牛
[脑筋急转] - Commentate(0 bytes )
2006-07-10
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#跟帖# Too late for Olympics, how about Nobel or Fields?
[脑筋急转] - Commentate(0 bytes )
2006-07-10
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#跟帖# should be continuous 1+xt
[脑筋急转] - Commentate(0 bytes )
2006-07-10
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#跟帖# Yeah, not to compound
[脑筋急转] - Commentate(0 bytes )
2006-07-10
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Lawn Mowing
[脑筋急转] - Commentate(1375 bytes )
2006-07-10
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#跟帖# 回复：非洲奥赛题（没有了）
[脑筋急转] - Commentate(383 bytes )
2006-07-10
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#跟帖# If not very far, see 2 sides has bigger probability.
[脑筋急转] - Commentate(0 bytes )
2006-07-10
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页次：1/5
每页50条记录，
本页显示1
到50，
共237
分页：
[1]
[2]
[3]
[4]
[5]
[下一页]
[尾页]
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