摘要：
output standard output Alice and Bob play a game. There is a paper strip which is divided into n + 1 cells numbered from left to right starting from 0 阅读全文
posted @ 2019-07-15 17:50
black_hole6
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摘要：
You are given three strings ss, tt and pp consisting of lowercase Latin letters. You may perform any number (possibly, zero) operations on these strin 阅读全文
posted @ 2019-07-15 17:47
black_hole6
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