Codeforces Round #659(Div.2)
Codeforces Round #659(Div.2)
文章目录Codeforces Round #659(Div.2)1. [A. Common Prefixes](https://codeforces.com/contest/1384/problem/A)-字符串2.[B1. Koa and the Beach (Easy Version)](https://codeforces.com/contest/1384/problem/B1)-贪心/dfs3.
1. A. Common Prefixes
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2020-07-31 15:10:51 ·
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