Viewing other problems with insights similar to ANY insight of Codeforces 1746D: Paths on the Tree.
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Codeforces 1506F: Triangular Paths
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- When dealing with even/odd numbers in a problem, see if the moves are designed for numbers to stay odd or stay even. In general, check in a problem if some characteristic is always the same (e.g. number being even). by mathmastersd
- Try to do the moves that are advantageous first to work to a desired result and then finish the rest of the moves to get a desired result (greedy strategy). by mathmastersd
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Codeforces 1860C: Game on Permutation
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- Iterate through the indices 1 to n, storing the winning and losing positions. Remember that a position is winning when it can move to a losing position, or when it has no moves. by Solarion
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Codeforces 1801D: The way home
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- Use Dynamic programming and djikstra algorithm by pranav_02
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Codeforces 1370D: Odd-Even Subsequence
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- When choosing elements from a list whose indices MUST have certain separation, consider using dynamic programming (DP). by mathmastersd
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