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Rank of TetrisProblem Description 自从Lele开发了Rating系统,他的Tetris事业更是如虎添翼,不久他遍把这个游戏推向了全球。为 了更好的符合那些爱好者的喜好,Lele又想了一个新点子:他将制作一个全球Tetris高手排行榜,定时更新,名堂要比福布斯富豪榜... 阅读全文
摘要:
D. Prefixes and SuffixesYou have a string s = s1s2...s|s|, where |s| is the length of string s, and si its i-th character. Let's introduce several de... 阅读全文