作者归档：在线疯狂

题目描述：

LeetCode 745. Prefix and Suffix Search

Given many words, words[i] has weight i.

Design a class WordFilter that supports one function, WordFilter.f(String prefix, String suffix). It will return the word with given prefix and suffix with ...

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LeetCode 742. Closest Leaf in a Binary Tree

Given a binary tree where every node has a unique value, and a target key k, find the closest leaf node to target k in the tree.

A node is called ...

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LeetCode 743. Network Delay Time

There are N network nodes, labelled 1 to N.

Given times, a list of travel times as directed edges times[i] = (u, v, w), where u is the source node, v is the target ...

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LeetCode 744. Find Smallest Letter Greater Than Target

Given a list of sorted characters letters containing only lowercase letters, and given a target letter target, find the smallest element in the list that is larger than the given target ...

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LeetCode 740. Delete and Earn

Given an array nums of integers, you can perform operations on the array.

In each operation, you pick any nums[i] and delete it to earn nums[i] points. After, you must delete every ...