题目描述：
LeetCode 689. Maximum Sum of 3 Non-Overlapping Subarrays
In a given array nums of positive integers, find three non-overlapping subarrays with maximum sum.
Each subarray will be of size k, and we want to maximize the sum of all ...
[LeetCode]Maximum Sum of 3 Non-Overlapping Subarrays
[LeetCode]Knight Probability in Chessboard
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题目描述：
LeetCode 688. Knight Probability in Chessboard
On an NxN chessboard, a knight starts at the r-th row and c-th column and attempts to make exactly K moves. The rows and columns are 0 indexed, so ...
[LeetCode]Longest Univalue Path
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题目描述：
LeetCode 687. Longest Univalue Path
Given a binary tree, find the length of the longest path where each node in the path has the same value. This path may or may not pass through the root.
Note: The length ...
[LeetCode]Repeated String Match
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题目描述：
LeetCode 686. Repeated String Match
Given two strings A and B, find the minimum number of times A has to be repeated such that B is a substring of it. If no such solution, return -1.
For example, with ...
[LeetCode]Employee Importance
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题目描述：
LeetCode 690. Employee Importance
You are given a data structure of employee information, which includes the employee's unique id, his importance value and his direct subordinates' id.
For example, employee 1 is the leader of employee 2, and employee ...