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Max Area of Island (M) 题目 You are given an m x n binary matrix grid. An island is a group of 1's (representing land) connected 4-directionally (horizo 阅读全文
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Search Suggestions System (M) 题目 Given an array of strings products and a string searchWord. We want to design a system that suggests at most three pr 阅读全文
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Maximum Erasure Value (M) 题目 You are given an array of positive integers nums and want to erase a subarray containing unique elements. The score you g 阅读全文
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Maximum Product of Word Lengths (M) 题目 Given a string array words, return the maximum value of length(word[i]) * length(word[j]) where the two words d 阅读全文
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Partitioning Into Minimum Number Of Deci-Binary Numbers (M) 题目 A decimal number is called deci-binary if each of its digits is either 0 or 1 without a 阅读全文
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Evaluate Reverse Polish Notation (M) 题目 Evaluate the value of an arithmetic expression in Reverse Polish Notation. Valid operators are +, -, *, /. Eac 阅读全文
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To Lower Case (E) 题目 Given a string s, return the string after replacing every uppercase letter with the same lowercase letter. Example 1: Input: s = 阅读全文
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Find and Replace Pattern (M) 题目 Given a list of strings words and a string pattern, return a list of words[i] that match pattern. You may return the a 阅读全文
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0102. Binary Tree Level Order Traversal (M) 题目 Given a binary tree, return the level order traversal of its nodes' values. (ie, from left to right, le 阅读全文
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Minimum Moves to Equal Array Elements II (M) 题目 Given an integer array nums of size n, return the minimum number of moves required to make all array e 阅读全文