cf训练

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#	Origin	Title
A	CodeForces 1997A	Strong Password
B	CodeForces 1997B	Make Three Regions
C	CodeForces 1997C	Even Positions
D	CodeForces 1989A	Catch the Coin
E	CodeForces 1989B	Substring and Subsequence
F	CodeForces 1989C	Two Movies
G	CodeForces 1989D	Smithing Skill
H	CodeForces 1997D	Maximize the Root

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

{"id":650272,"title":"cf训练","type":1,"openness":0,"authStatus":1,"begin":1724203800000,"end":1724938200000,"createTime":1724203265000,"started":true,"ended":true,"managerId":337497,"managerName":"lcjWAWA","groupShortName":"vj123","groupName":"NOI信息学校队","fav":false,"description":{"format":"MD","content":""},"announcement":"提交按钮是Submit   选择语言GNU G++ 17都可以    最后两题稍微难一点  \n整套题三小时半答题是够的，但是不要去尝试抄袭，否则将直接失去学习机会\n踏踏实实地学习，水平才会一步步上去  \n题解\nhttps://blog.csdn.net/weixin_45948940/article/details/141411550?spm\u003d1001.2014.3001.5502","problems":[{"pid":4120774,"title":"Strong Password","oj":"CodeForces","probNum":"1997A","num":"A","enabledDescKeys":[2340208137118925],"descBriefs":[{"key":2340208137118925,"updateDate":"2024-07-31","version":1722388711000,"author":"GPT_zh","avatarUrl":"https://cravatar.cn/avatar/b87213a2b1f46e7c52f57997c087d4fb?d\u003dwavatar","remarks":"[简体中文] translation by OpenAI (gpt-4o-mini-2024-07-18)"}],"properties":[{"title":"Time limit","content":"2000 ms","spoiler":false},{"title":"Mem limit","content":"524288 kB","spoiler":false},{"title":"Source","content":"\u003ca style\u003d\"color: black\" href\u003d\"https://codeforces.com/contest/1997\"\u003eEducational Codeforces Round 168 (Rated for Div. 2)\u003c/a\u003e","spoiler":true},{"title":"Tags","content":"\r\n    brute force\r\n\n\r\n    implementation\r\n\n\r\n    strings\r\n\n\r\n    *800\r\n","spoiler":true},{"title":"Editorial","content":"\u003ca href\u003d\"https://codeforces.com/blog/entry/132049\" title\u003d\"Educational Codeforces Round 168 [Rated for Div. 2]\" target\u003d\"_blank\"\u003eAnnouncement\u003c/a\u003e\n\u003ca href\u003d\"https://codeforces.com/blog/entry/132154\" title\u003d\"Educational Codeforces Round 168 Editorial\" target\u003d\"_blank\"\u003eTutorial #1\u003c/a\u003e\n\u003ca href\u003d\"https://codeforces.com/blog/entry/132116\" title\u003d\"Video Tutorial\" target\u003d\"_blank\"\u003eVideo Tutorial \u003cspan class\u003d\"resource-locale\"\u003e(en)\u003c/span\u003e\u003c/a\u003e","spoiler":true}],"weight":1,"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","91":"GNU G++23 14.2 (64 bit, msys2)","70":"PyPy 3.10 (7.3.15, 64bit)","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":4120778,"title":"Make Three 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target\u003d\"_blank\"\u003eAnnouncement\u003c/a\u003e\n\u003ca href\u003d\"https://codeforces.com/blog/entry/132154\" title\u003d\"Educational Codeforces Round 168 Editorial\" target\u003d\"_blank\"\u003eTutorial #1\u003c/a\u003e\n\u003ca href\u003d\"https://codeforces.com/blog/entry/132116\" title\u003d\"Video Tutorial\" target\u003d\"_blank\"\u003eVideo Tutorial \u003cspan class\u003d\"resource-locale\"\u003e(en)\u003c/span\u003e\u003c/a\u003e","spoiler":true}],"weight":1,"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","91":"GNU G++23 14.2 (64 bit, msys2)","70":"PyPy 3.10 (7.3.15, 64bit)","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 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   constructive algorithms\r\n\n\r\n    data structures\r\n\n\r\n    greedy\r\n\n\r\n    *1100\r\n","spoiler":true},{"title":"Editorial","content":"\u003ca href\u003d\"https://codeforces.com/blog/entry/132049\" title\u003d\"Educational Codeforces Round 168 [Rated for Div. 2]\" target\u003d\"_blank\"\u003eAnnouncement\u003c/a\u003e\n\u003ca href\u003d\"https://codeforces.com/blog/entry/132154\" title\u003d\"Educational Codeforces Round 168 Editorial\" target\u003d\"_blank\"\u003eTutorial #1\u003c/a\u003e\n\u003ca href\u003d\"https://codeforces.com/blog/entry/132116\" title\u003d\"Video Tutorial\" target\u003d\"_blank\"\u003eVideo Tutorial \u003cspan class\u003d\"resource-locale\"\u003e(en)\u003c/span\u003e\u003c/a\u003e","spoiler":true}],"weight":1,"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","91":"GNU G++23 14.2 (64 bit, msys2)","70":"PyPy 3.10 (7.3.15, 64bit)","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":4112789,"title":"Catch the Coin","oj":"CodeForces","probNum":"1989A","num":"D","enabledDescKeys":[2380920720976057],"descBriefs":[{"key":2380920720976057,"updateDate":"2024-07-01","version":1719802989000,"author":"GPT_zh","avatarUrl":"https://cravatar.cn/avatar/b87213a2b1f46e7c52f57997c087d4fb?d\u003dwavatar","remarks":"[简体中文] translation by OpenAI (gpt-3.5-turbo-0125)"}],"properties":[{"title":"Time limit","content":"2000 ms","spoiler":false},{"title":"Mem limit","content":"262144 kB","spoiler":false},{"title":"Source","content":"\u003ca style\u003d\"color: black\" href\u003d\"https://codeforces.com/contest/1989\"\u003eEducational Codeforces Round 167 (Rated for Div. 2)\u003c/a\u003e","spoiler":true},{"title":"Tags","content":"\r\n    implementation\r\n\n\r\n    *800\r\n","spoiler":true},{"title":"Editorial","content":"\u003ca href\u003d\"https://codeforces.com/blog/entry/130882\" title\u003d\"Educational Codeforces Round 167 [Rated for Div. 2]\" target\u003d\"_blank\"\u003eAnnouncement\u003c/a\u003e\n\u003ca href\u003d\"https://codeforces.com/blog/entry/130937\" title\u003d\"Educational Codeforces Round 167 (Rated for Div. 2) — Video Tutorial\" target\u003d\"_blank\"\u003eTutorial #1 \u003cspan class\u003d\"resource-locale\"\u003e(en)\u003c/span\u003e\u003c/a\u003e\n\u003ca href\u003d\"https://codeforces.com/blog/entry/130988\" title\u003d\"Educational Codeforces Round 167 Editorial\" 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target\u003d\"_blank\"\u003eAnnouncement\u003c/a\u003e\n\u003ca href\u003d\"https://codeforces.com/blog/entry/130937\" title\u003d\"Educational Codeforces Round 167 (Rated for Div. 2) — Video Tutorial\" target\u003d\"_blank\"\u003eTutorial #1 \u003cspan class\u003d\"resource-locale\"\u003e(en)\u003c/span\u003e\u003c/a\u003e\n\u003ca href\u003d\"https://codeforces.com/blog/entry/130988\" title\u003d\"Educational Codeforces Round 167 Editorial\" target\u003d\"_blank\"\u003eTutorial #2\u003c/a\u003e","spoiler":true}],"weight":1,"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","91":"GNU G++23 14.2 (64 bit, msys2)","70":"PyPy 3.10 (7.3.15, 64bit)","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":4112791,"title":"Two Movies","oj":"CodeForces","probNum":"1989C","num":"F","enabledDescKeys":[2387855242795613],"descBriefs":[{"key":2387855242795613,"updateDate":"2024-07-24","version":1721811381000,"author":"GPT_zh","avatarUrl":"https://cravatar.cn/avatar/b87213a2b1f46e7c52f57997c087d4fb?d\u003dwavatar","remarks":"[简体中文] translation by OpenAI (gpt-4o-mini-2024-07-18)"}],"properties":[{"title":"Time limit","content":"2000 ms","spoiler":false},{"title":"Mem limit","content":"262144 kB","spoiler":false},{"title":"Source","content":"\u003ca style\u003d\"color: black\" href\u003d\"https://codeforces.com/contest/1989\"\u003eEducational Codeforces Round 167 (Rated for Div. 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(7.3.15, 64bit)","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":4112792,"title":"Smithing Skill","oj":"CodeForces","probNum":"1989D","num":"G","enabledDescKeys":[2386242503998736],"descBriefs":[{"key":2386242503998736,"updateDate":"2024-08-26","version":1724633407000,"author":"GPT_zh","avatarUrl":"https://cravatar.cn/avatar/b87213a2b1f46e7c52f57997c087d4fb?d\u003dwavatar","remarks":"[简体中文] translation by OpenAI (gpt-4o-mini-2024-07-18)"}],"properties":[{"title":"Time limit","content":"3000 ms","spoiler":false},{"title":"Mem limit","content":"262144 kB","spoiler":false},{"title":"Source","content":"\u003ca style\u003d\"color: black\" href\u003d\"https://codeforces.com/contest/1989\"\u003eEducational Codeforces Round 167 (Rated for Div. 2)\u003c/a\u003e","spoiler":true},{"title":"Tags","content":"\r\n    brute force\r\n\n\r\n    data structures\r\n\n\r\n    dp\r\n\n\r\n    greedy\r\n\n\r\n    math\r\n\n\r\n    sortings\r\n\n\r\n    two pointers\r\n\n\r\n    *1900\r\n","spoiler":true},{"title":"Editorial","content":"\u003ca href\u003d\"https://codeforces.com/blog/entry/130882\" title\u003d\"Educational Codeforces Round 167 [Rated for Div. 2]\" target\u003d\"_blank\"\u003eAnnouncement\u003c/a\u003e\n\u003ca href\u003d\"https://codeforces.com/blog/entry/130937\" title\u003d\"Educational Codeforces Round 167 (Rated for Div. 2) — Video Tutorial\" target\u003d\"_blank\"\u003eTutorial #1 \u003cspan class\u003d\"resource-locale\"\u003e(en)\u003c/span\u003e\u003c/a\u003e\n\u003ca href\u003d\"https://codeforces.com/blog/entry/130988\" title\u003d\"Educational Codeforces Round 167 Editorial\" target\u003d\"_blank\"\u003eTutorial #2\u003c/a\u003e","spoiler":true}],"weight":1,"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","91":"GNU G++23 14.2 (64 bit, msys2)","70":"PyPy 3.10 (7.3.15, 64bit)","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":4120775,"title":"Maximize the Root","oj":"CodeForces","probNum":"1997D","num":"H","enabledDescKeys":[2340051626946907],"descBriefs":[{"key":2340051626946907,"updateDate":"2024-07-31","version":1722359648000,"author":"GPT_zh","avatarUrl":"https://cravatar.cn/avatar/b87213a2b1f46e7c52f57997c087d4fb?d\u003dwavatar","remarks":"[简体中文] translation by OpenAI (gpt-4o-mini-2024-07-18)"}],"properties":[{"title":"Time limit","content":"3000 ms","spoiler":false},{"title":"Mem limit","content":"262144 kB","spoiler":false},{"title":"Source","content":"\u003ca style\u003d\"color: black\" href\u003d\"https://codeforces.com/contest/1997\"\u003eEducational Codeforces Round 168 (Rated for Div. 2)\u003c/a\u003e","spoiler":true},{"title":"Tags","content":"\r\n    binary search\r\n\n\r\n    dfs and similar\r\n\n\r\n    dp\r\n\n\r\n    greedy\r\n\n\r\n    trees\r\n\n\r\n    *1500\r\n","spoiler":true},{"title":"Editorial","content":"\u003ca href\u003d\"https://codeforces.com/blog/entry/132049\" title\u003d\"Educational Codeforces Round 168 [Rated for Div. 2]\" target\u003d\"_blank\"\u003eAnnouncement\u003c/a\u003e\n\u003ca href\u003d\"https://codeforces.com/blog/entry/132154\" title\u003d\"Educational Codeforces Round 168 Editorial\" target\u003d\"_blank\"\u003eTutorial #1\u003c/a\u003e\n\u003ca href\u003d\"https://codeforces.com/blog/entry/132116\" title\u003d\"Video Tutorial\" target\u003d\"_blank\"\u003eVideo Tutorial \u003cspan class\u003d\"resource-locale\"\u003e(en)\u003c/span\u003e\u003c/a\u003e","spoiler":true}],"weight":1,"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","91":"GNU G++23 14.2 (64 bit, msys2)","70":"PyPy 3.10 (7.3.15, 64bit)","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, 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