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Link:https://codeforces.com/problemset/problem/1492/B description: You are given a deck of cards, numbered from \(1\) to \(n\). For each time you can 阅读全文
posted @ 2021-02-26 17:04
_dwt
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摘要：
description: Two strings \(a,b\) are nonempty strings.We can replace a char, delete a char or add a char, so how many edition are needed to make the t 阅读全文
posted @ 2021-02-26 16:10
_dwt
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