how do you quickly realize a problem needs binary search on answers
I understand how to implement binary search on answers when the check function is clear but during contests I often struggle to spot when this approach is needed
what signs or patterns help you recognize that binary search on answers is the right idea
any tips examples or common tricks would be really helpful
| Rev. | Lang. | By | When | Δ | Comment | |
|---|---|---|---|---|---|---|
| en5 |
|
betterCallPetya | 2025-06-20 06:09:00 | 58 | ||
| en4 |
|
betterCallPetya | 2025-06-20 06:07:24 | 58 | ||
| en3 |
|
betterCallPetya | 2025-06-20 06:06:20 | 73 | Tiny change: ' helpful\n' -> ' helpful\n\n' | |
| en2 |
|
betterCallPetya | 2025-06-20 06:05:29 | 2 | Tiny change: 'ght idea\nany tips' -> 'ght idea\n\nany tips' | |
| en1 |
|
betterCallPetya | 2025-06-20 05:59:55 | 392 | Initial revision (published) |
| # | User | Rating |
|---|---|---|
| 1 | Benq | 3792 |
| 2 | VivaciousAubergine | 3647 |
| 3 | Kevin114514 | 3603 |
| 4 | jiangly | 3583 |
| 5 | turmax | 3559 |
| 6 | tourist | 3541 |
| 7 | strapple | 3515 |
| 8 | ksun48 | 3461 |
| 9 | dXqwq | 3436 |
| 10 | Otomachi_Una | 3413 |
| # | User | Contrib. |
|---|---|---|
| 1 | Qingyu | 157 |
| 2 | adamant | 153 |
| 3 | Um_nik | 147 |
| 3 | Proof_by_QED | 147 |
| 5 | Dominater069 | 145 |
| 6 | errorgorn | 142 |
| 7 | cry | 139 |
| 8 | YuukiS | 135 |
| 9 | TheScrasse | 134 |
| 10 | chromate00 | 133 |
