Только что закончился очередной opencup. Давайте обсуждать задачи здесь :)
Только что закончился очередной opencup. Давайте обсуждать задачи здесь :)
| # | User | Rating |
|---|---|---|
| 1 | tourist | 3690 |
| 2 | jiangly | 3647 |
| 3 | Benq | 3581 |
| 4 | orzdevinwang | 3570 |
| 5 | Geothermal | 3569 |
| 5 | cnnfls_csy | 3569 |
| 7 | Radewoosh | 3509 |
| 8 | ecnerwala | 3486 |
| 9 | jqdai0815 | 3474 |
| 10 | gyh20 | 3447 |
| # | User | Contrib. |
|---|---|---|
| 1 | maomao90 | 174 |
| 2 | awoo | 164 |
| 3 | adamant | 163 |
| 4 | TheScrasse | 159 |
| 5 | nor | 157 |
| 6 | maroonrk | 156 |
| 7 | -is-this-fft- | 152 |
| 8 | Petr | 146 |
| 8 | orz | 146 |
| 10 | BledDest | 145 |
Anything about A or B?
B is a slightly harder version of my old problem: http://acm.sgu.ru/problem.php?contest=0&problem=309 . In this problem you have to be a bit more careful, but the idea is the same: binary search + the idea that with 3 squares at least one of the squares has both sides on the border of the enclosing rectangle.