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Increasing Triplet Subsequence (M) 题目 Given an unsorted array return whether an increasing subsequence of length 3 exists or not in the array. Formall 阅读全文
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Intersection of Two Arrays II (E) 题目 Given two arrays, write a function to compute their intersection. Example 1: Input: nums1 = [1,2,2,1], nums2 = [2 阅读全文
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Permutations II (M) 题目 Given a collection of numbers that might contain duplicates, return all possible unique permutations. Example: Input: [1,1,2] O 阅读全文
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Permutations (M) 题目 Given a collection of distinct integers, return all possible permutations. Example: Input: [1,2,3] Output: [ [1,2,3], [1,3,2], [2, 阅读全文
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Jump Game II (H) 题目 Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array r 阅读全文