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https://vjudge.net/problem/ZOJ-4104/origin https://vjudge.net/contest/395635#problem/E DreamGrid has just found an integer sequence a_1, a_2, \dots, a 阅读全文
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https://vjudge.net/problem/ZOJ-4107/origin https://vjudge.net/contest/395635#problem/H Baobao loves singing very much and he really enjoys a game call 阅读全文
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https://vjudge.net/problem/ZOJ-4033/origin https://vjudge.net/contest/399385#problem/J DreamGrid has $n$ classmates numbered from $1$ to $n$. Some of 阅读全文
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https://vjudge.net/problem/ZOJ-4025/origin https://vjudge.net/contest/399385#problem/B It's Karaoke time! DreamGrid is performing the song Powder Snow 阅读全文