Hi, all!↵
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This year GP of China is scheduled on [Sunday, March 10, 2019 at 11:00 (UTC+3)](https://www.timeanddate.com/worldclock/fixedtime.html?day=10&month=3&year=2019&hour=11&min=0&sec=0&p1=166). Writers have spent several days and nights creating and developing these problems. Hope you enjoy the contest!↵
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**UPD:** Thanks to [user:zimpha,2019-03-11], [user:Claris,2019-03-11], [user:quailty,2019-03-11] and me, here is [editorial](https://drive.google.com/file/d/19mOJBXxJ6O6XXG_7BUy1ZwVxaJ8e6cTd/view).↵
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Links: [OpenCup Main Page](http://opencup.ru/), [GP of China (Div. 1)](http://official.contest.yandex.ru/opencupXIX/contest/12242/enter), [GP of China (Div. 2)](http://opentrains.snarknews.info/~ejudge/team.cgi?contest_id=10465), and [New Team Registration?](http://www.opencup.ru/index.cgi?data=ocj/rules/sector&menu=index&head=index&class=ocj&ncup=ocj)↵
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This year GP of China is scheduled on [Sunday, March 10, 2019 at 11:00 (UTC+3)](https://www.timeanddate.com/worldclock/fixedtime.html?day=10&month=3&year=2019&hour=11&min=0&sec=0&p1=166). Writers have spent several days and nights creating and developing these problems. Hope you enjoy the contest!↵
↵
**UPD:** Thanks to [user:zimpha,2019-03-11], [user:Claris,2019-03-11], [user:quailty,2019-03-11] and me, here is [editorial](https://drive.google.com/file/d/19mOJBXxJ6O6XXG_7BUy1ZwVxaJ8e6cTd/view).↵
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Links: [OpenCup Main Page](http://opencup.ru/), [GP of China (Div. 1)](http://official.contest.yandex.ru/opencupXIX/contest/12242/enter), [GP of China (Div. 2)](http://opentrains.snarknews.info/~ejudge/team.cgi?contest_id=10465), and [New Team Registration?](http://www.opencup.ru/index.cgi?data=ocj/rules/sector&menu=index&head=index&class=ocj&ncup=ocj)↵
