Viewing other problems with insights similar to ANY insight of Codeforces 1859D: Andrey and Escape from Capygrad.
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Codeforces 1860D: Balanced String
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- Think about the constraints. Why n=100? If it was a greedy, or prefix sum, or segment tree problem, n would probably be larger. by Solarion
- The greedy solution of taking the maximum change close to your wanted 0 difference passes the pretests, but fails on the main tests. by Solarion
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AtCoder ABC318: Ex. Count Strong Test Cases
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- New Insight by attractors
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2023 USAMO Problem 4
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- vp then try to make an "engine" that goes forever by alecks
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2022 AMC 12A Problem 14
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- Try to deal with nice logs so it simplifies nicely and items cancel out by Batmanstark
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Codeforces 1859C: Another Permutation Problem
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- It was surprisingly easy problem because of the the small range of the variable n (n <= 250) and that allowed a brute force approach that I've considered, but still looking for a more efficient solution even though O(n^2) or O(n^3) are super efficient. Keep in mind that not every problem has tricks by alextm
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Codeforces 1834B: Maximum Strength
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- -When you compare two numbers, at each digit position the maximum strength you can get is 9-0 = 9. by fluffy_mango
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Codeforces 1811F: Is It Flower?
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- Consider small cases when solving a problem. See if something in those cases are the same regardless of the size. by mathmastersd
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