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原题链接在这里：https://leetcode.com/problems/find-common-characters/ 题目： Given an array A of strings made only from lowercase letters, return a list of all c 阅读全文
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原题链接在这里：https://leetcode.com/problems/diagonal-traverse/ 题目： Given a matrix of M x N elements (M rows, N columns), return all elements of the matrix i 阅读全文
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原题链接在这里：https://leetcode.com/problems/friends-of-appropriate-ages/ 题目： Some people will make friend requests. The list of their ages is given and ages 阅读全文
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原题链接在这里：https://leetcode.com/problems/goat-latin/ 题目： A sentence S is given, composed of words separated by spaces. Each word consists of lowercase an 阅读全文
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原题链接在这里：https://leetcode.com/problems/monotonic-array/ 题目： An array is monotonic if it is either monotone increasing or monotone decreasing. An array 阅读全文
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原题链接在这里：https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree/ 题目： Given a binary tree, return the vertical order traversal of its n 阅读全文