分块最适合用来练练代码能力了~
[Codeforces Round #307(Div.2)] 551E-GukiZ and GukiZiana
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标签归档：Codeforces
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2019-2020 ICPC, NERC, Southern and Volga Russian Regional Contest 题解
这场码量是真的好大啊……签到题多虽然多，但是都不太好写就是了。
还是要更加努力才行呐（
比赛链接：[2019-2020 ICPC, NERC, Southern and Volga Russian Regional Contest (Online Mirror, ICPC Rules, Teams Preferred)](https://codeforces.com/contest/1250)
