| # | User | Rating |
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| 1 | tourist | 3985 |
| 2 | jiangly | 3814 |
| 3 | jqdai0815 | 3682 |
| 4 | Benq | 3529 |
| 5 | orzdevinwang | 3526 |
| 6 | ksun48 | 3517 |
| 7 | Radewoosh | 3410 |
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| 9 | ecnerwala | 3392 |
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| # | User | Contrib. |
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| 2 | Um_nik | 162 |
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| 6 | -is-this-fft- | 157 |
| 7 | adamant | 155 |
| 8 | awoo | 154 |
| 8 | Dominater069 | 154 |
| 10 | luogu_official | 150 |
https://mirror.codeforces.com/contest/1792/problem/D
//At the bottom there is my submission.
https://mirror.codeforces.com/contest/1792/submission/190984642
can anyone help me in giving further ideas to optimize my implementation. If possible can anybody teach me how to tackle these kinds of problems with newer ideas(new concepts).
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