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题目如下： A tree rooted at node 0 is given as follows: The number of nodes is nodes; The value of the i-th node is value[i]; The parent of the i-th node i 阅读全文
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题目如下： (This problem is an interactive problem.) On the sea represented by a cartesian plane, each ship is located at an integer point, and each intege 阅读全文
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题目如下： Given a sorted list of disjoint intervals, each interval intervals[i] = [a, b] represents the set of real numbers x such that a <= x < b. We rem 阅读全文
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题目如下： A decimal number can be converted to its Hexspeak representation by first converting it to an uppercase hexadecimal string, then replacing all o 阅读全文