摘要：
1.题目描述 Follow up for problem "Populating Next Right Pointers in Each Node". What if the given tree could be any b... 阅读全文
摘要：
1.题目描述 Given a binary tree struct TreeLinkNode { TreeLinkNode *left; ... 阅读全文
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1.题目描述 Given an index k, return the kth row of the Pascal's triangle. For example, given k = 3, Retu... 阅读全文
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1.题目描述 Given numRows, generate the first numRows of Pascal's triangle. For example, given numRows = 5, Return ... 阅读全文
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1.题目描述 Given a triangle, find the minimum path sum from top to bottom. Each step you may move to adjacent numbers on the row below. ... 阅读全文