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| 6 | Um_nik | 3387 |
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| 1 | Qingyu | 155 |
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| 4 | Um_nik | 144 |
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| 6 | adamant | 137 |
| 7 | AmShZ | 136 |
| 8 | BledDest | 132 |
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One of my favourite problems — 1794C - Scoring Subsequences Try solving it in O(n) instead of O(nlogn)