作者归档：在线疯狂

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 ...

题目描述：

LeetCode 685. Redundant Connection II

In this problem, a rooted tree is a directed graph such that, there is exactly one node (the root) for which all other nodes are descendants of this node, plus every node has exactly ...

LeetCode Weekly Contest 51是LeetCode举办的第五十五场正式周赛，共4道题目，比赛时长1.5小时。

比赛链接：https://leetcode.com/contest/leetcode-weekly-contest-51/

题解列表：

LeetCode 682. Baseball Game

LeetCode 681. Next Closest Time

LeetCode 684. Redundant Connection

LeetCode 683. K Empty Slots

题目描述：

LeetCode 683. K Empty Slots

There is a garden with N slots. In each slot, there is a flower. The N flowers will bloom one by one in N days. In each day, there will be exactly one flower ...

题目描述：

LeetCode 684. Redundant Connection

We are given a "tree" in the form of a 2D-array, with distinct values for each node.

In the given 2D-array, each element pair [u, v] represents that v is a child of u in ...