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Given a sequence of questions you must consider in order, each question i either yields points[i] but forces you to skip the next brainpower[i] questions or can be skipped; maximize total points. This is an interval-scheduling/DP problem solvable with DP or memoized recursion in O(n) time for n up to 1e5.
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Leetcode 2140. Solving Questions With Brainpower
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Source snapshot: Nov 12, 2026
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