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lc 515 Find Largest Value in Each Tree Row [515 Find Largest Value in Each Tree Row][1] You need to find the largest value in each row of a binary tre 阅读全文
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lc 513 Find Bottom Left Tree Value [513 Find Bottom Left Tree Value][1] Given a binary tree, find the leftmost value in the last row of the tree. Exam 阅读全文
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lc 690 Employee Importance [690 Employee Importance][1] You are given a data structure of employee information, which includes the employee's unique i 阅读全文
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lc 207 Course Schedule [207 Course Schedule][1] There are a total of n courses you have to take, labeled from 0 to n 1. Some courses may have prerequi 阅读全文
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lc 399 Evaluate Division [399 Evaluate Division][1] Equations are given in the format A / B = k, where A and B are variables represented as strings, a 阅读全文
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lc 241 Different Ways to Add Parentheses [241 Different Ways to Add Parentheses][1] Given a string of numbers and operators, return all possible resul 阅读全文
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lc 217 Contains Duplicate [217 Contains Duplicate][1] Given an array of integers, find if the array contains any duplicates. Your function should retu 阅读全文
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lc 53 Maximum Subarray [53 Maximum Subarray][1] Find the contiguous subarray within an array (containing at least one number) which has the largest su 阅读全文
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