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• Brute Force Optimizations (Bytedance Moscow Workshops Day 5, Div B)
• Andrew Stankevich Contest 45 (ASC 45)
  Solved by ultmaster. 01:59 (+3) ultmaster: 罚时不是我贡献的。
  3 KB (104 words) - 16:15, 17 July 2019
• 2015-2016 Nizhny Novgorod SU Contest
  Solved by ultmaster. 01:01 (+) Solved by ultmaster. 03:37 (+1)
  3 KB (69 words) - 14:27, 21 March 2018
• 2018 Benelux Algorithm Programming Contest (BAPC 18)
  Solved by ultmaster. 00:17 (+) Solved by ultmaster. 01:08 (+)
  2 KB (72 words) - 16:14, 2 April 2019
• Randomized Algorithms (Bytedance Moscow Workshops Day 3, Div B)
• Blitz Contest (Bytedance Moscow Workshops Day 7)
• ACM ICPC World Finals 2013
  Solved by ultmaster. 02:47 (+2) Solved by ultmaster. 00:33 (+)
  2 KB (48 words) - 13:26, 26 March 2018
• 2018 ACM-ICPC Xuzhou Regional Onsite
  ultmaster: Upsolved by ultmaster.
  6 KB (263 words) - 07:22, 3 December 2018
• 2017-2018 ACM-ICPC German Collegiate Programming Contest
  Solved by ultmaster. 00:32 (+) Solved by ultmaster. 01:04 (+)
  3 KB (74 words) - 11:38, 28 September 2018
• 2013-2014 ACM-ICPC, Asia Aizu Regional Contest
  Solved by ultmaster. 00:38 (+) Solved by ultmaster. 02:14 (+)
  2 KB (55 words) - 11:58, 9 March 2019
• ACM-ICPC 2018 Beijing Online Contest
  Solved by ultmaster. 01:25 (+)
  3 KB (94 words) - 06:29, 23 September 2018
• CCPC-Final 2018
  ultmaster: * 最后半小时，kblack 依旧在刚 D，zerol 躺，ultmaster 蜜汁开心。（假装此处有图）
  3 KB (87 words) - 18:38, 29 January 2019
• Grand Prix of Khamovniki, MosCode Fest Online Selection (ITMO Day 6)
  Solved by ultmaster. 01:27 (+) 题解：状压一下暴搜搜就好了。没大写过博弈类状压的 ultmaster 现在也学会了。
  3 KB (109 words) - 03:40, 14 April 2018
• 2017-2018 ACM-ICPC, Central Europe Regional Contest (CERC 17)
  Solved by ultmaster. 02:48 (+) Solved by ultmaster & zerol. 03:20 (+13)
  2 KB (84 words) - 15:19, 31 July 2018
• 2018-2019 ACM-ICPC Pacific Northwest Regional Contest (Div. 1)
  Solved by ultmaster. 00:16 (+) Solved by ultmaster. 01:52 (+1)
  2 KB (82 words) - 13:09, 5 December 2018
• 2019 ICPC World Finals
  * 此时 ultmaster 表示 A 有个猜想，反正大家都过了，于是上去写，WA 了。一看题目和代码，发现假的不行，好在想出了真算法。有点麻烦，好在 ultmaster 稳健，过了。
  6 KB (139 words) - 14:56, 6 April 2019
• 2018 ACM-ICPC China Shanghai Metropolitan Invitational Contest
  Solved by ultmaster. 00:10 (+) Upsolved by ultmaster.
  7 KB (181 words) - 11:52, 5 August 2018
• 2014-2015 Northwestern European Regional Contest (NWERC 2014)
  Solved by ultmaster. 00:38 (+1) Solved by ultmaster. 01:56 (+1)
  3 KB (74 words) - 11:04, 21 June 2018
• 2011 ACM-ICPC World Finals
  Solved by ultmaster. 03:53 (+) Solved by ultmaster. 02:53 (+3)
  2 KB (56 words) - 10:58, 3 March 2019
• 2013-2014 Petrozavodsk Winter Training Camp, Saratov SU Contest
  Solved by ultmaster. 01:16 (+) Upsolved by ultmaster.
  4 KB (99 words) - 14:46, 15 February 2019

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