Hello dear programmers! Is there anyway to calculate the minimum length of the addition subtraction chain for any integer n up to 1000? https://en.wikipedia.org/wiki/Addition-subtraction_chain.
Rating changes for last rounds are temporarily rolled back. They will be returned soon.
→ Pay attention
Before contest
Spectral::Cup 2026 Round 2 (Codeforces Round 1100, Div. 1 + Div. 2)
18:39:25
Register now »
Spectral::Cup 2026 Round 2 (Codeforces Round 1100, Div. 1 + Div. 2)
18:39:25
Register now »
*has extra registration
→ Top rated
| # | User | Rating |
|---|---|---|
| 1 | ecnerwala | 3844 |
| 2 | Benq | 3792 |
| 3 | tourist | 3719 |
| 4 | VivaciousAubergine | 3647 |
| 5 | jiangly | 3616 |
| 6 | ksun48 | 3595 |
| 7 | Kevin114514 | 3491 |
| 8 | strapple | 3486 |
| 9 | Um_nik | 3376 |
| 10 | turmax | 3371 |
→ Top contributors
| # | User | Contrib. |
|---|---|---|
| 1 | Qingyu | 162 |
| 2 | adamant | 148 |
| 3 | Um_nik | 146 |
| 4 | Dominater069 | 143 |
| 5 | errorgorn | 141 |
| 6 | cry | 138 |
| 7 | Proof_by_QED | 136 |
| 8 | YuukiS | 135 |
| 9 | chromate00 | 134 |
| 10 | soullless | 133 |
→ Find user
→ Recent actions
History
Revisions
| Rev. | Lang. | By | When | Δ | Comment | |
|---|---|---|---|---|---|---|
| en3 |
|
Santa__Claus | 2023-10-25 20:18:12 | 0 | (published) | |
| en2 |
|
Santa__Claus | 2023-10-25 20:17:55 | 58 | Tiny change: 'p to 1000?' -> 'p to 1000? https://en.wikipedia.org/wiki/Addition-subtraction_chain.' (saved to drafts) | |
| en1 |
|
Santa__Claus | 2023-10-25 17:51:31 | 169 | Initial revision (published) |
Codeforces (c) Copyright 2010-2026 Mike Mirzayanov
The only programming contests Web 2.0 platform
Server time: May/22/2026 22:55:37 (g2).
Desktop version, switch to mobile version.
Supported by
