[CareerCup] 6.2 Dominos on Chess Board 棋盤上的多米諾

6.2 There is an 8x8 chess board in which two diagonally opposite corners have been cut off. You are given 31 dominos, and a single domino can cover exactly two squares. Can you use the 31 dominos to cover the entire board? Prove your answer (by providing an example or showing why it's impossible).

[CareerCup] 6.2 Dominos on Chess Board 棋盤上的多米諾

6.2 There is an 8x8 chess board in which two diagonally opposite corners have been cut off. You are given 31 dominos, and a single domino can cover exact

（20181123）6.2——Preprocessing on the RINEX Level(RNXSMT)

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[CareerCup] 7.2 Ants on Polygon 多邊形上的螞蟻

7.2 There are three ants on different vertices of a triangle. What is the probability of collision (between any two or all of them) if they start walking

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[CareerCup] 6.4 Blue Eyes People on Island 島上的藍眼人

6.4 A bunch of people are living on an island, when a visitor comes with a strange order: all blue-eyed people must leave the island as soon as possible.

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[CareerCup] 6.2 Dominos on Chess Board 棋盤上的多米諾

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