2020SCUACM 专题·LCA

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#	Origin	Title
A	HDU 2586	How far away ？
B	LibreOJ 10135	祖孙询问
C	POJ 3417	Network
D	LibreOJ 10136	聚会
E	LibreOJ 10132	异象石
F	Gym 102012G	Rikka with Intersections of Paths
G	UVA 1674	Lightning Energy Report

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Run ID	Username	Prob	Result	Time (ms)	Mem (MB)	Length	Lang	Submit Time

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New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":18775,"title":"Network","oj":"POJ","probNum":"3417","num":"C","publicDescId":3155664622532579,"publicDescVersion":1715485947000,"properties":[{"title":"Time limit","content":"2000 ms","spoiler":false},{"title":"Mem limit","content":"65536 kB","spoiler":false},{"title":"Source","content":"\u003cdiv class\u003d\"ptx\" lang\u003d\"en-US\"\u003e\u003ca href\u003d\"http://poj.org/searchproblem?field\u003dsource\u0026amp;key\u003dPOJ+Monthly--2007.10.06\"\u003ePOJ Monthly--2007.10.06\u003c/a\u003e, Yang Mu\u003c/div\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":3331539,"title":"聚会","oj":"LibreOJ","probNum":"10136","num":"D","publicDescId":2913856488041337,"publicDescVersion":1715949598000,"properties":[{"title":"Time limit","content":"2000 ms","spoiler":false},{"title":"Mem limit","content":"524288 kB","spoiler":false},{"title":"Source","content":"一本通 4.4 练习 3","spoiler":true},{"title":"Tags","content":"早于 2010; LCA; AHOI","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":3331547,"title":"异象石","oj":"LibreOJ","probNum":"10132","num":"E","publicDescId":2913849068475422,"publicDescVersion":1716051963000,"properties":[{"title":"Time limit","content":"1000 ms","spoiler":false},{"title":"Mem limit","content":"524288 kB","spoiler":false},{"title":"Source","content":"一本通 4.4 例 3","spoiler":true},{"title":"Tags","content":"平衡树; 虚树; LCA","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","submitMethods":[true,true,true]},{"pid":2071046,"title":"Rikka with Intersections of Paths","oj":"Gym","probNum":"102012G","num":"F","publicDescId":2849801035990824,"publicDescVersion":1716060171000,"properties":[{"title":"Time limit","content":"6000 ms","spoiler":false},{"title":"Mem limit","content":"1048576 kB","spoiler":false},{"title":"OS","content":"Windows","spoiler":false},{"title":"Source","content":"\u003ca href\u003d\u0027https://codeforces.com/gym/102012\u0027 target\u003d\u0027_blank\u0027\u003e2018-2019 ACM-ICPC, Asia Xuzhou Regional Contest\u003c/a\u003e","spoiler":true},{"title":"Statement","content":"\u003ca href\u003d\"CDN_BASE_URL/7a3cb952ecd3e4846e5f03897180f768?v\u003d1716060170\" title\u003d\"20182019-acmicpc-asia-xuzhou-regional-contest-en.pdf\" target\u003d\"_blank\"\u003eStatements \u003cspan class\u003d\"resource-locale\"\u003e(en)\u003c/span\u003e\u003c/a\u003e","spoiler":true},{"title":"Editorial","content":"\u003ca href\u003d\"https://codeforces.com/blog/entry/63460\" title\u003d\"Announcement\" target\u003d\"_blank\"\u003eAnnouncement \u003cspan class\u003d\"resource-locale\"\u003e(en)\u003c/span\u003e\u003c/a\u003e","spoiler":true}],"weight":1,"submitTips":"The contest is too ancient. New submissions will be considered out of the contest.","languages":{"88":"Kotlin 1.9.21","89":"GNU G++20 13.2 (64 bit, winlibs)","67":"Ruby 3.2.2","28":"D DMD32 v2.105.0","70":"PyPy 3.10 (7.3.15, 64bit)","50":"GNU G++14 6.4.0","51":"PascalABC.NET 3.8.3","31":"Python 3.8.10","75":"Rust 1.75.0 (2021)","54":"GNU G++17 7.3.0","32":"Go 1.22.2","55":"Node.js 15.8.0 (64bit)","12":"Haskell GHC 8.10.1","34":"JavaScript V8 4.8.0","79":"C# 10, .NET SDK 6.0","13":"Perl 5.20.1","36":"Java 8 32bit","19":"OCaml 4.02.1","3":"Delphi 7","4":"Free Pascal 3.2.2","6":"PHP 8.1.7","7":"Python 2.7.18","9":"C# Mono 6.8","83":"Kotlin 1.7.20","40":"PyPy 2.7.13 (7.3.0)","41":"PyPy 3.6.9 (7.3.0)","20":"Scala 2.12.8","43":"GNU GCC C11 5.1.0","65":"C# 8, .NET Core 3.1","87":"Java 21 64bit"},"submitMethods":[true,true,true]},{"pid":51268,"title":"Lightning Energy Report","oj":"UVA","probNum":"1674","num":"G","publicDescId":3190372003759608,"publicDescVersion":1715710004000,"properties":[{"title":"Time limit","content":"3000 ms","spoiler":false},{"title":"OS","content":"Linux","spoiler":false}],"weight":1,"submitTips":"The contest is too ancient. 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