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- 14:04, 12 September 2019 diff hist 0 NULL (2019) →Algorithm Trainings
- 13:55, 12 September 2019 diff hist -1 NULL (2019) →Problems Trainings
- 10:33, 12 September 2019 diff hist -7 Training 5: Dynamic Programming →Problem D
- 05:32, 12 September 2019 diff hist +249 Training 5: Dynamic Programming →Problem D
- 04:44, 12 September 2019 diff hist -17 Training 5: Dynamic Programming →Problem D
- 03:27, 12 September 2019 diff hist +1 Training 5: Dynamic Programming →Problem D
- 03:27, 12 September 2019 diff hist +237 Training 5: Dynamic Programming →Problem D
- 03:17, 12 September 2019 diff hist -1,407 Training 5: Dynamic Programming
- 03:16, 12 September 2019 diff hist -791 Training 5: Dynamic Programming
- 03:16, 12 September 2019 diff hist +2,364 N Training 5: Dynamic Programming Created page with "=== Problem A === 题意: $\sum\limits_{i=1}^{n}\sum\limits_{j=1}^{m}lcm(i,j)$ 题解: 原式=$\sum\limits_{i=1}^{n}\sum\limits_{j=1}^{m}\frac{i \times j}{gcd(i,j)} = \sum\l..."
- 00:45, 12 September 2019 diff hist +21 2019 Multi-University,HDU Day 10 →Problem I current
- 00:45, 12 September 2019 diff hist +23 2019 Multi-University,HDU Day 10 →Problem I
- 00:43, 12 September 2019 diff hist 0 2019 Multi-University,HDU Day 10 →Problem C
- 00:43, 12 September 2019 diff hist +343 2019 Multi-University,HDU Day 10 →Problem C
- 00:39, 12 September 2019 diff hist +251 2019 Multi-University,HDU Day 9 →Problem F current
- 00:37, 12 September 2019 diff hist 0 2019 Multi-University,HDU Day 9
- 00:24, 12 September 2019 diff hist +439 2019 Multi-University,HDU Day 9 →Problem C
- 00:17, 12 September 2019 diff hist 0 ICPC 2019 Xuzhou Online Contest →Problem F
- 00:17, 12 September 2019 diff hist +1 ICPC 2019 Xuzhou Online Contest →Problem F
- 00:17, 12 September 2019 diff hist +1,131 ICPC 2019 Xuzhou Online Contest →Problem F
- 13:54, 11 September 2019 diff hist +1 2019 Multi-University,Nowcoder Day 3 →Problem G current
- 13:52, 11 September 2019 diff hist 0 XVIII Open Cup named after E.V. Pankratiev. Grand Prix of Peterhof →Problem I current
- 13:52, 11 September 2019 diff hist +2 XVIII Open Cup named after E.V. Pankratiev. Grand Prix of Peterhof →Problem J
- 13:36, 11 September 2019 diff hist 0 2019 ByteDance Day2 (Div B) - Moscow Workshops ICPC Programming Camp 2019 →Problem A current
- 13:35, 11 September 2019 diff hist +25 2019 ByteDance Day1 - Moscow Workshops ICPC Programming Camp 2019 →Problem D current
- 13:34, 11 September 2019 diff hist +11 2019 ByteDance Day1 - Moscow Workshops ICPC Programming Camp 2019 →Problem G
- 13:34, 11 September 2019 diff hist +12 2019 ByteDance Day1 - Moscow Workshops ICPC Programming Camp 2019 →Problem E
- 13:20, 11 September 2019 diff hist +35 2016-2017 Codeforces Trainings Season 3 Episode 7(CT S03E07) →Problem D current
- 13:18, 11 September 2019 diff hist 0 ICPC 2019 Nanchang Online Contest →Problem D
- 13:18, 11 September 2019 diff hist +2 ICPC 2019 Nanchang Online Contest →Problem D
- 13:18, 11 September 2019 diff hist +408 ICPC 2019 Nanchang Online Contest →Problem D
- 12:09, 11 September 2019 diff hist +162 ICPC 2019 Nanchang Online Contest →Problem A
- 12:07, 11 September 2019 diff hist +52 ICPC 2019 Nanchang Online Contest →Problem A
- 12:06, 11 September 2019 diff hist +1 ICPC 2019 Nanchang Online Contest →Problem A
- 12:05, 11 September 2019 diff hist +2 ICPC 2019 Nanchang Online Contest →Problem A
- 12:04, 11 September 2019 diff hist +670 ICPC 2019 Nanchang Online Contest →Problem A
- 07:44, 10 September 2019 diff hist -17 ICPC 2019 Xuzhou Online Contest →Problem L
- 07:42, 10 September 2019 diff hist +35 ICPC 2019 Xuzhou Online Contest →Problem L
- 07:41, 10 September 2019 diff hist +1,571 ICPC 2019 Xuzhou Online Contest →Problem L
- 07:23, 10 September 2019 diff hist +397 ICPC 2019 Xuzhou Online Contest →Problem K
- 07:14, 10 September 2019 diff hist -7 ICPC 2019 Xuzhou Online Contest →Problem J
- 07:13, 10 September 2019 diff hist +2 ICPC 2019 Xuzhou Online Contest →Problem J
- 07:13, 10 September 2019 diff hist +8 ICPC 2019 Xuzhou Online Contest →Problem J
- 07:12, 10 September 2019 diff hist +2 ICPC 2019 Xuzhou Online Contest →Problem J
- 07:12, 10 September 2019 diff hist +3 ICPC 2019 Xuzhou Online Contest →Problem J
- 07:12, 10 September 2019 diff hist +26 ICPC 2019 Xuzhou Online Contest →Problem J
- 07:09, 10 September 2019 diff hist +15 ICPC 2019 Xuzhou Online Contest →Problem J
- 07:08, 10 September 2019 diff hist +22 ICPC 2019 Xuzhou Online Contest →Problem J
- 07:08, 10 September 2019 diff hist -10 ICPC 2019 Xuzhou Online Contest →Problem J
- 07:07, 10 September 2019 diff hist +2 ICPC 2019 Xuzhou Online Contest →Problem J
- 07:07, 10 September 2019 diff hist +4 ICPC 2019 Xuzhou Online Contest →Problem J
- 07:07, 10 September 2019 diff hist +1 ICPC 2019 Xuzhou Online Contest →Problem J
- 07:06, 10 September 2019 diff hist +236 ICPC 2019 Xuzhou Online Contest →Problem J
- 06:59, 10 September 2019 diff hist +25 ICPC 2019 Xuzhou Online Contest →Problem J
- 06:53, 10 September 2019 diff hist +11 ICPC 2019 Xuzhou Online Contest →Problem J
- 06:51, 10 September 2019 diff hist -32 ICPC 2019 Xuzhou Online Contest →Problem J
- 06:50, 10 September 2019 diff hist +56 ICPC 2019 Xuzhou Online Contest →Problem J
- 06:49, 10 September 2019 diff hist +332 ICPC 2019 Xuzhou Online Contest →Problem J
- 06:38, 10 September 2019 diff hist +76 ICPC 2019 Xuzhou Online Contest →Problem D
- 06:37, 10 September 2019 diff hist 0 ICPC 2019 Xuzhou Online Contest →Problem D
- 06:37, 10 September 2019 diff hist +163 ICPC 2019 Xuzhou Online Contest →Problem D
- 06:35, 10 September 2019 diff hist 0 ICPC 2019 Xuzhou Online Contest →Problem A
- 06:34, 10 September 2019 diff hist +387 ICPC 2019 Xuzhou Online Contest →Problem A
- 06:30, 10 September 2019 diff hist +271 ICPC 2019 Nanjing Online Contest →Problem H current
- 06:28, 10 September 2019 diff hist +306 ICPC 2019 Nanjing Online Contest →Problem D
- 06:23, 10 September 2019 diff hist +1 ICPC 2019 Nanjing Online Contest →Problem D
- 06:23, 10 September 2019 diff hist +382 ICPC 2019 Nanjing Online Contest →Problem D
- 08:24, 9 September 2019 diff hist +932 2019 Multi-University,Nowcoder Day 10 →Problem F current
- 08:17, 9 September 2019 diff hist 0 2019 Multi-University,Nowcoder Day 10 →Problem E
- 08:17, 9 September 2019 diff hist +262 2019 Multi-University,Nowcoder Day 10 →Problem E
- 08:13, 9 September 2019 diff hist +1,039 2019 Multi-University,Nowcoder Day 10 →Problem A
- 07:59, 9 September 2019 diff hist +8 2019 Multi-University,Nowcoder Day 10 →Problem D
- 07:52, 9 September 2019 diff hist +20 2019 Multi-University,Nowcoder Day 10 →Problem A
- 07:51, 9 September 2019 diff hist +577 2019 Multi-University,Nowcoder Day 9 →Problem J current
- 07:38, 9 September 2019 diff hist +5 2019 Multi-University,Nowcoder Day 3 →Problem C
- 07:37, 9 September 2019 diff hist +401 2019 Multi-University,Nowcoder Day 3 →Problem C
- 07:33, 9 September 2019 diff hist +590 2019 Multi-University,Nowcoder Day 3 →Problem C
- 07:16, 9 September 2019 diff hist -21 2015-2016 ACM-ICPC East Central North America Regional Contest →Problem H current
- 07:16, 9 September 2019 diff hist +11 2015-2016 ACM-ICPC East Central North America Regional Contest →Problem H
- 07:15, 9 September 2019 diff hist -36 XVIII Open Cup named after E.V. Pankratiev. Grand Prix of Korea →Problem C current
- 07:14, 9 September 2019 diff hist -6 2019 Sun Yat-sen University Programming Contest →Problem J current
- 07:09, 9 September 2019 diff hist +2 2019 ByteDance Day1 - Moscow Workshops ICPC Programming Camp 2019 →Problem A
- 13:17, 5 September 2019 diff hist +4 XIX Open Cup named after E.V. Pankratiev. Grand Prix of America →Problem M
- 13:51, 4 September 2019 diff hist +56 XIX Open Cup named after E.V. Pankratiev. Grand Prix of America →Problem F
- 13:50, 4 September 2019 diff hist 0 XIX Open Cup named after E.V. Pankratiev. Grand Prix of America →Problem F
- 13:50, 4 September 2019 diff hist +89 XIX Open Cup named after E.V. Pankratiev. Grand Prix of America →Problem F
- 13:48, 4 September 2019 diff hist -7 XIX Open Cup named after E.V. Pankratiev. Grand Prix of America →Problem F
- 13:48, 4 September 2019 diff hist -7 XIX Open Cup named after E.V. Pankratiev. Grand Prix of America →Problem F
- 13:48, 4 September 2019 diff hist +2 XIX Open Cup named after E.V. Pankratiev. Grand Prix of America →Problem F
- 13:47, 4 September 2019 diff hist +60 XIX Open Cup named after E.V. Pankratiev. Grand Prix of America →Problem F
- 13:45, 4 September 2019 diff hist +4 XIX Open Cup named after E.V. Pankratiev. Grand Prix of America →Problem F
- 13:44, 4 September 2019 diff hist 0 XIX Open Cup named after E.V. Pankratiev. Grand Prix of America →Problem F
- 13:43, 4 September 2019 diff hist +7 XIX Open Cup named after E.V. Pankratiev. Grand Prix of America →Problem F
- 13:43, 4 September 2019 diff hist +55 XIX Open Cup named after E.V. Pankratiev. Grand Prix of America →Problem F
- 13:41, 4 September 2019 diff hist +72 XIX Open Cup named after E.V. Pankratiev. Grand Prix of America →Problem F
- 13:38, 4 September 2019 diff hist +508 XIX Open Cup named after E.V. Pankratiev. Grand Prix of America →Problem F
- 13:04, 4 September 2019 diff hist +5 XIX Open Cup named after E.V. Pankratiev. Grand Prix of America →Problem M
- 13:04, 4 September 2019 diff hist +457 XIX Open Cup named after E.V. Pankratiev. Grand Prix of America →Problem M
- 12:56, 4 September 2019 diff hist 0 XIX Open Cup named after E.V. Pankratiev. Grand Prix of America →Problem M
- 12:56, 4 September 2019 diff hist +84 XIX Open Cup named after E.V. Pankratiev. Grand Prix of America →Problem M
- 12:54, 4 September 2019 diff hist +2 XIX Open Cup named after E.V. Pankratiev. Grand Prix of America →Problem M
- 12:54, 4 September 2019 diff hist -6 XIX Open Cup named after E.V. Pankratiev. Grand Prix of America →Problem M
- 12:53, 4 September 2019 diff hist +426 XIX Open Cup named after E.V. Pankratiev. Grand Prix of America →Problem M
- 12:47, 4 September 2019 diff hist +339 XIX Open Cup named after E.V. Pankratiev. Grand Prix of America →Problem A
- 04:36, 3 September 2019 diff hist +116 2019 Multi-University,Nowcoder Day 9 →Problem D
- 04:33, 3 September 2019 diff hist +2 2019 Multi-University,Nowcoder Day 9 →Problem C
- 04:33, 3 September 2019 diff hist +1 2019 Multi-University,Nowcoder Day 9 →Problem C
- 04:33, 3 September 2019 diff hist +97 2019 Multi-University,Nowcoder Day 9 →Problem C
- 04:31, 3 September 2019 diff hist +140 2019 Multi-University,Nowcoder Day 9 →Problem C
- 04:28, 3 September 2019 diff hist +27 2019 Multi-University,Nowcoder Day 9 →Problem C
- 04:27, 3 September 2019 diff hist +14 2019 Multi-University,Nowcoder Day 9 →Problem C
- 04:27, 3 September 2019 diff hist +1 2019 Multi-University,Nowcoder Day 9 →Problem C
- 04:26, 3 September 2019 diff hist +109 2019 Multi-University,Nowcoder Day 9 →Problem C
- 04:23, 3 September 2019 diff hist +1 2019 Multi-University,Nowcoder Day 9 →Problem I
- 04:22, 3 September 2019 diff hist +12 2019 Multi-University,HDU Day 8 →Problem K current
- 04:22, 3 September 2019 diff hist +398 2019 Multi-University,HDU Day 8 →Problem K
- 04:19, 3 September 2019 diff hist +203 2019 Multi-University,HDU Day 8 →Problem I
- 04:17, 3 September 2019 diff hist +727 2019 Multi-University,HDU Day 8 →Problem H
- 04:11, 3 September 2019 diff hist +714 2019 Multi-University,HDU Day 8 →Problem F
- 03:57, 3 September 2019 diff hist +319 2019 Multi-University,HDU Day 8 →Problem A
- 09:29, 25 August 2019 diff hist +743 2019 CCPC Online Contest →Problem D
- 09:22, 25 August 2019 diff hist +155 2019 CCPC Online Contest →Problem D
- 09:21, 25 August 2019 diff hist +131 2019 CCPC Online Contest →Problem D
- 09:19, 25 August 2019 diff hist +2 2019 CCPC Online Contest →Problem D
- 09:19, 25 August 2019 diff hist -1 2019 CCPC Online Contest →Problem D
- 09:19, 25 August 2019 diff hist +12 2019 CCPC Online Contest →Problem D
- 09:18, 25 August 2019 diff hist +22 2019 CCPC Online Contest →Problem D
- 09:17, 25 August 2019 diff hist +1 2019 CCPC Online Contest →Problem D
- 09:17, 25 August 2019 diff hist +106 2019 CCPC Online Contest →Problem D
- 09:04, 25 August 2019 diff hist +190 2019 CCPC Online Contest →Problem D
- 08:59, 25 August 2019 diff hist +305 2019 CCPC Online Contest →Problem D
- 08:00, 24 August 2019 diff hist +7 2019 CCPC Online Contest →Problem H
- 07:59, 24 August 2019 diff hist +4 2019 CCPC Online Contest →Problem H
- 07:59, 24 August 2019 diff hist +742 2019 CCPC Online Contest →Problem H
- 07:13, 24 August 2019 diff hist +232 2019 CCPC Online Contest →Problem F
- 07:12, 24 August 2019 diff hist +101 2019 CCPC Online Contest →Problem G
- 13:11, 19 August 2019 diff hist +181 2019 Multi-University,Nowcoder Day 8 →Problem F current
- 13:03, 19 August 2019 diff hist +23 2019 Multi-University,HDU Day 8 →Problem A
- 13:02, 19 August 2019 diff hist 0 NULL (2019) →Complete Status (Team Sessions Only)
- 13:01, 19 August 2019 diff hist 0 NULL (2019) →Complete Status (Team Sessions Only)
- 13:00, 19 August 2019 diff hist +670 2019 Multi-University,Nowcoder Day 8 →Problem F
- 07:05, 13 August 2019 diff hist +4 2019 ICPC China Xi'an Invitational Programming Contest →Problem M current
- 07:05, 13 August 2019 diff hist +3 2019 ICPC China Xi'an Invitational Programming Contest →Problem J
- 07:03, 13 August 2019 diff hist +1 2019 Multi-University,Nowcoder Day 7 →Problem H
- 07:03, 13 August 2019 diff hist +6 2019 Multi-University,Nowcoder Day 7 →Problem H
- 07:03, 13 August 2019 diff hist +6 2019 Multi-University,Nowcoder Day 7 →Problem H
- 08:17, 11 August 2019 diff hist -455 2019 ICPC China Xi'an Invitational Programming Contest →Replay
- 08:14, 11 August 2019 diff hist +4 2019 Multi-University,HDU Day 7 →Problem A
- 08:14, 11 August 2019 diff hist +1 2019 Multi-University,HDU Day 7 →Problem E
- 08:10, 11 August 2019 diff hist +809 2019 Multi-University,HDU Day 7 →Problem J
- 08:01, 11 August 2019 diff hist 0 2019 Multi-University,HDU Day 7 →Problem K
- 08:01, 11 August 2019 diff hist -24 2019 Multi-University,HDU Day 7 →Problem K
- 07:46, 11 August 2019 diff hist 0 2019 Multi-University,Nowcoder Day 7 →Problem C
- 07:45, 11 August 2019 diff hist +9 2019 Multi-University,Nowcoder Day 7 →Problem B
- 07:45, 11 August 2019 diff hist +106 2019 Multi-University,Nowcoder Day 7 →Problem B
- 07:40, 11 August 2019 diff hist +6 2019 Multi-University,Nowcoder Day 8 →Problem E
- 07:39, 11 August 2019 diff hist +572 2019 Multi-University,Nowcoder Day 8 →Problem E
- 07:14, 11 August 2019 diff hist +355 2019 Multi-University,Nowcoder Day 8 →Problem E
- 07:08, 11 August 2019 diff hist 0 2019 Multi-University,Nowcoder Day 8 →Problem C
- 07:08, 11 August 2019 diff hist +4 2019 Multi-University,Nowcoder Day 8 →Problem C
- 07:07, 11 August 2019 diff hist +1 2019 Multi-University,Nowcoder Day 8 →Problem C
- 07:07, 11 August 2019 diff hist -4 2019 Multi-University,Nowcoder Day 8 →Problem C
- 07:06, 11 August 2019 diff hist +3 2019 Multi-University,Nowcoder Day 8 →Problem C
- 07:06, 11 August 2019 diff hist -6 2019 Multi-University,Nowcoder Day 8 →Problem C
- 07:06, 11 August 2019 diff hist +26 2019 Multi-University,Nowcoder Day 8 →Problem C
- 07:05, 11 August 2019 diff hist +32 2019 Multi-University,Nowcoder Day 8 →Problem C
- 07:05, 11 August 2019 diff hist +2 2019 Multi-University,Nowcoder Day 8 →Problem C
- 07:05, 11 August 2019 diff hist -1 2019 Multi-University,Nowcoder Day 8 →Problem C
- 07:04, 11 August 2019 diff hist -13 2019 Multi-University,Nowcoder Day 8 →Problem C
- 07:04, 11 August 2019 diff hist +2 2019 Multi-University,Nowcoder Day 8 →Problem C
- 07:03, 11 August 2019 diff hist -5 2019 Multi-University,Nowcoder Day 8 →Problem C
- 07:03, 11 August 2019 diff hist -1 2019 Multi-University,Nowcoder Day 8 →Problem C
- 07:03, 11 August 2019 diff hist +1 2019 Multi-University,Nowcoder Day 8 →Problem C
- 07:03, 11 August 2019 diff hist +289 2019 Multi-University,Nowcoder Day 8 →Problem C
- 06:57, 11 August 2019 diff hist 0 2019 Multi-University,Nowcoder Day 8 →Problem C
- 06:57, 11 August 2019 diff hist +116 2019 Multi-University,Nowcoder Day 8 →Problem C
- 06:56, 11 August 2019 diff hist +301 2019 Multi-University,Nowcoder Day 8 →Problem B
- 06:43, 11 August 2019 diff hist +802 2019 Multi-University,Nowcoder Day 7 →Problem I
- 12:19, 8 August 2019 diff hist +12 2019 Multi-University,Nowcoder Day 7 →Problem E
- 12:19, 8 August 2019 diff hist +164 2019 Multi-University,Nowcoder Day 7 →Problem E
- 11:28, 8 August 2019 diff hist +234 2019 Multi-University,Nowcoder Day 7 →Problem B
- 14:49, 7 August 2019 diff hist +51 2019 Multi-University,HDU Day 6 →Problem D
- 14:48, 7 August 2019 diff hist +6 2019 Multi-University,HDU Day 6 →Problem D
- 14:48, 7 August 2019 diff hist 0 2019 Multi-University,HDU Day 6 →Problem D
- 14:48, 7 August 2019 diff hist +1,443 2019 Multi-University,HDU Day 6 →Problem D
- 14:33, 7 August 2019 diff hist +211 2019 Multi-University,HDU Day 6 →Problem D
- 14:02, 7 August 2019 diff hist +2 2019 Multi-University,HDU Day 7 →Problem B
- 14:01, 7 August 2019 diff hist -3 2019 Multi-University,HDU Day 7 →Problem B
- 14:00, 7 August 2019 diff hist +3 2019 Multi-University,HDU Day 7 →Problem A
- 14:00, 7 August 2019 diff hist -18 2019 Multi-University,HDU Day 7 →Problem B
- 14:00, 7 August 2019 diff hist -1 2019 Multi-University,HDU Day 7 →Problem B
- 13:59, 7 August 2019 diff hist +16 2019 Multi-University,HDU Day 7 →Problem B
- 13:57, 7 August 2019 diff hist +1 2019 Multi-University,HDU Day 7 →Problem K
- 13:57, 7 August 2019 diff hist +611 2019 Multi-University,HDU Day 7 →Problem K
- 13:46, 7 August 2019 diff hist -4 2019 Multi-University,HDU Day 7 →Problem A
- 13:46, 7 August 2019 diff hist +175 2019 Multi-University,HDU Day 7 →Problem A
- 13:41, 7 August 2019 diff hist +329 2019 Multi-University,HDU Day 7 →Problem F
- 13:38, 7 August 2019 diff hist +1 2019 Multi-University,HDU Day 7 →Problem A
- 13:37, 7 August 2019 diff hist 0 2019 Multi-University,HDU Day 6 →Problem L
- 14:51, 5 August 2019 diff hist -3 2019 Multi-University,Nowcoder Day 5 →Problem D
- 14:51, 5 August 2019 diff hist +9 2019 Multi-University,Nowcoder Day 5 →Problem D
- 14:51, 5 August 2019 diff hist 0 2019 Multi-University,Nowcoder Day 5 →Problem D
- 14:50, 5 August 2019 diff hist +4 2019 Multi-University,Nowcoder Day 5 →Problem D
- 14:49, 5 August 2019 diff hist +83 2019 Multi-University,Nowcoder Day 5 →Problem D
- 14:48, 5 August 2019 diff hist +524 2019 Multi-University,Nowcoder Day 5 →Problem D
- 14:28, 5 August 2019 diff hist +60 2019 Multi-University,Nowcoder Day 5 →Problem D
- 14:27, 5 August 2019 diff hist +195 2019 Multi-University,Nowcoder Day 5 →Problem D
- 14:08, 5 August 2019 diff hist +18 2019 Multi-University,Nowcoder Day 5 →Problem D
- 14:08, 5 August 2019 diff hist +2 2019 Multi-University,Nowcoder Day 5 →Problem D
- 14:08, 5 August 2019 diff hist +206 2019 Multi-University,Nowcoder Day 5 →Problem D
- 13:59, 5 August 2019 diff hist 0 2019 Multi-University,Nowcoder Day 5 →Problem D
- 13:59, 5 August 2019 diff hist +149 2019 Multi-University,Nowcoder Day 5 →Problem D
- 13:57, 5 August 2019 diff hist 0 2019 Multi-University,Nowcoder Day 5 →Problem I
- 13:56, 5 August 2019 diff hist +283 2019 Multi-University,Nowcoder Day 5 →Problem I
- 13:34, 5 August 2019 diff hist +409 2019 Multi-University,Nowcoder Day 5 →Problem B
- 13:29, 5 August 2019 diff hist +134 2019 Multi-University,Nowcoder Day 5 →Problem A
- 13:27, 5 August 2019 diff hist +19 2019 Multi-University,Nowcoder Day 6 →Problem J
- 13:27, 5 August 2019 diff hist +504 2019 Multi-University,Nowcoder Day 6 →Problem J
- 13:23, 5 August 2019 diff hist +25 2019 Multi-University,Nowcoder Day 6 →Problem J
- 13:22, 5 August 2019 diff hist +23 2019 Multi-University,Nowcoder Day 6 →Problem A
- 12:43, 5 August 2019 diff hist +252 2019 Multi-University,HDU Day 5 →Problem G
- 11:31, 5 August 2019 diff hist +191 2019 Multi-University,HDU Day 5 →Problem G
- 11:20, 5 August 2019 diff hist +109 2019 Multi-University,HDU Day 5 →Problem G
- 11:08, 5 August 2019 diff hist +835 2019 Multi-University,HDU Day 5 →Problem H
- 10:33, 5 August 2019 diff hist +17 ITMO Chinese Winter Camp Day3 →Problem G current
- 10:33, 5 August 2019 diff hist -30 ITMO Chinese Winter Camp Day3 →Problem C