原文链接: https://leetcode-cn.com/problems/stream-of-characters
英文原文Design an algorithm that accepts a stream of character
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原文链接: https://leetcode-cn.com/problems/iterator-for-combination
英文原文Design the CombinationIterator class:
Combin
原文链接: https://leetcode-cn.com/problems/snapshot-array
英文原文Implement a SnapshotArray that supports the following interf
原文链接: https://leetcode-cn.com/problems/online-majority-element-in-subarray
英文原文Design a data structure that efficientl
原文链接: https://leetcode-cn.com/problems/dinner-plate-stacks
英文原文You have an infinite number of stacks arranged in a row
原文链接: https://leetcode-cn.com/problems/kth-ancestor-of-a-tree-node
英文原文You are given a tree with n nodes numbered from
原文链接: https://leetcode-cn.com/problems/design-skiplist
英文原文Design a Skiplist without using any built-in libraries.
A
原文链接: https://leetcode-cn.com/problems/find-elements-in-a-contaminated-binary-tree
英文原文Given a binary tree with the fo
原文链接: https://leetcode-cn.com/problems/apply-discount-every-n-orders
英文原文There is a supermarket that is frequented by
原文链接: https://leetcode-cn.com/problems/tweet-counts-per-frequency
英文原文A social media company is trying to monitor acti