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- 11:52, 21 September 2019 diff hist +1 2018-2019 ACM-ICPC, Asia Nakhon Pathom Regional Contest →Problem J
- 11:51, 21 September 2019 diff hist -2 2018-2019 ACM-ICPC, Asia Nakhon Pathom Regional Contest →Problem J
- 11:51, 21 September 2019 diff hist +51 2018-2019 ACM-ICPC, Asia Nakhon Pathom Regional Contest →Problem J
- 11:50, 21 September 2019 diff hist +106 2018-2019 ACM-ICPC, Asia Nakhon Pathom Regional Contest →Problem H
- 11:49, 21 September 2019 diff hist +3 2018-2019 ACM-ICPC, Asia Nakhon Pathom Regional Contest →Problem G
- 11:49, 21 September 2019 diff hist +80 2018-2019 ACM-ICPC, Asia Nakhon Pathom Regional Contest →Problem G
- 11:41, 21 September 2019 diff hist +155 2018-2019 ACM-ICPC, Asia Nakhon Pathom Regional Contest →Problem F
- 13:57, 18 September 2019 diff hist +250 XIX Open Cup named after E.V. Pankratiev. Grand Prix of China →Problem C current
- 08:24, 17 September 2019 diff hist +236 ICPC 2019 Shanghai Online Contest →Problem E current
- 08:17, 17 September 2019 diff hist 0 ICPC 2019 Shanghai Online Contest →Problem E
- 08:17, 17 September 2019 diff hist +118 ICPC 2019 Shanghai Online Contest →Problem E
- 08:16, 17 September 2019 diff hist +59 ICPC 2019 Shanghai Online Contest →Problem E
- 08:15, 17 September 2019 diff hist +334 ICPC 2019 Shanghai Online Contest →Problem E
- 07:48, 17 September 2019 diff hist -27 ICPC 2019 Shanghai Online Contest →Problem F
- 07:48, 17 September 2019 diff hist +282 ICPC 2019 Shanghai Online Contest →Problem F
- 07:14, 17 September 2019 diff hist +308 ICPC 2019 Shanghai Online Contest →Problem F
- 07:10, 17 September 2019 diff hist +302 ICPC 2019 Shanghai Online Contest →Problem J
- 06:04, 17 September 2019 diff hist +36 ICPC 2019 Shanghai Online Contest →Problem I
- 06:04, 17 September 2019 diff hist +443 ICPC 2019 Shanghai Online Contest →Problem I
- 06:00, 17 September 2019 diff hist +132 ICPC 2019 Shanghai Online Contest →Problem I
- 05:51, 17 September 2019 diff hist +224 ICPC 2019 Shanghai Online Contest →Problem I
- 05:36, 17 September 2019 diff hist +12 ICPC 2019 Shenyang Online Contest →Problem J current
- 05:36, 17 September 2019 diff hist +561 ICPC 2019 Shenyang Online Contest →Problem J
- 05:27, 17 September 2019 diff hist +211 ICPC 2019 Shenyang Online Contest →Problem K
- 05:23, 17 September 2019 diff hist +2 ICPC 2019 Shenyang Online Contest →Problem K
- 05:22, 17 September 2019 diff hist +2 ICPC 2019 Shenyang Online Contest →Problem K
- 05:22, 17 September 2019 diff hist -1 ICPC 2019 Shenyang Online Contest →Problem K
- 05:21, 17 September 2019 diff hist +194 ICPC 2019 Shenyang Online Contest →Problem K
- 05:18, 17 September 2019 diff hist +241 ICPC 2019 Shenyang Online Contest →Problem G
- 05:16, 17 September 2019 diff hist +12 ICPC 2019 Shenyang Online Contest →Problem F
- 05:16, 17 September 2019 diff hist +284 ICPC 2019 Shenyang Online Contest →Problem F
- 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