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Qin Shi Huang's National Road System Problem Description During the Warring States Period of ancient China(476 BC to 221 BC), there were seven kingdom 阅读全文
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Carcassonne Problem Description Carcassonne is a tile-based board game for two to five players.Square tiles are printed by city segments,road segments 阅读全文
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Matrix Power Series Time Limit:3000MS Memory Limit:131072K Description Given a n × n matrix A and a positive integer k, find the sum S = A + A2 + A3 + 阅读全文