题目描述：

LeetCode 604. Design Compressed String Iterator

Design and implement a data structure for a compressed string iterator. It should support the following operations: next and hasNext.

The given compressed string will be in the form of each letter followed ...

题目描述：

LeetCode 617. Merge Two Binary Trees

Given two binary trees and imagine that when you put one of them to cover the other, some nodes of the two trees are overlapped while the others are not.

You need to ...

LeetCode Weekly Contest 35是LeetCode举办的第四十场正式周赛，共4道题目，比赛时长1.5小时。

比赛链接：https://leetcode.com/contest/leetcode-weekly-contest-35/

题解列表：

LeetCode 605. Can Place Flowers

LeetCode 606. Construct String from Binary Tree

LeetCode 609. Find Duplicate File in System

LeetCode 591. Tag Validator

题目描述：

LeetCode 591. Tag Validator

Given a string representing a code snippet, you need to implement a tag validator to parse the code and return whether it is valid. A code snippet is valid if all the following rules hold ...

题目描述：

LeetCode 609. Find Duplicate File in System

Given a list of directory info including directory path, and all the files with contents in this directory, you need to find out all the groups of duplicate files in the file ...