C. Engineer Artem I solved this pathetic excuse of a 2000R problem yesterday. I have been trying to find the relation of this problem with FFT and CRT. The guide doesn't say anything related to CRT or FFT. Can anyone explain
→ Pay attention
→ Streams
→ Top rated
| # | User | Rating |
|---|---|---|
| 1 | Benq | 3676 |
| 2 | jiangly | 3670 |
| 3 | Kevin114514 | 3657 |
| 4 | maroonrk | 3355 |
| 5 | Um_nik | 3353 |
| 6 | squareOf105 | 3346 |
| 7 | tourist | 3343 |
| 8 | strapple | 3324 |
| 9 | heuristica | 3322 |
| 10 | jiangbowen | 3291 |
→ Top contributors
| # | User | Contrib. |
|---|---|---|
| 1 | Qingyu | 158 |
| 2 | nik_exists | 150 |
| 2 | maspy | 150 |
| 4 | AmShZ | 144 |
| 5 | Um_nik | 141 |
| 6 | Errichto | 139 |
| 7 | adamant | 137 |
| 8 | BledDest | 134 |
| 9 | maroonrk | 133 |
| 10 | qwexd | 130 |
→ Find user
→ Recent actions
Codeforces (c) Copyright 2010-2026 Mike Mirzayanov
The only programming contests Web 2.0 platform
Server time: Oct/14/2026 18:45:50 (g2).
Desktop version, switch to mobile version.
Supported by
In many such problems, tags are given wrong (for example, in roughly $$$80 \%$$$ of problems tagged as dp/greedy, there is no relation to dp/greedy at all). This is one of the things which I feel should be improved about codeforces. I would like to hear your thoughts on this.
Really $$$80$$$% ?.
Most of the problems tagged as DP do have a DP solution as much as I have observed.
Many times some other kind solution is more obvious and easy to click, but that doesn't means there is no DP solution of the problems.