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Words count in article: 256 | Reading time ≈ 1
题目Given an array A of non-negative integers, return an array consisting of all the even elements of A, followed by all the odd elements of A. You may ...
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Words count in article: 252 | Reading time ≈ 1
题目Given a singly linked list L: L0→L1→…→Ln-1→Ln,reorder it to: L0→Ln→L1→Ln-1→L2→Ln-2→… You may not modify the values in the list’s nodes, only nodes i ...
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Words count in article: 386 | Reading time ≈ 2
题目A sentence S is given, composed of words separated by spaces. Each word consists of lowercase and uppercase letters only. We would like to convert t ...
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Words count in article: 295 | Reading time ≈ 1
题目Given a string which consists of lowercase or uppercase letters, find the length of the longest palindromes that can be built with those letters. Th ...
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Words count in article: 111 | Reading time ≈ 1
题目Given a non-negative index k where k ≤ 33, return the k^th index row of the Pascal’s triangle. Note that the row index starts from 0. In Pascal’s tr ...
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Words count in article: 203 | Reading time ≈ 1
题目Given an array of citations (each citation is a non-negative integer) of a researcher, write a function to compute the researcher’s h-index. Accordi ...
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