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Problem Definition:Given a binary tree, determine if it is height-balanced.For this problem, a height-balanced binary tree is defined as abinary tree ... 阅读全文
posted @ 2015-07-21 21:39
曾可爱
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Problem Definition:Given a binary tree, find its minimum depth.The minimum depth is the number of nodes along the shortest path from the root node dow... 阅读全文
posted @ 2015-07-21 20:19
曾可爱
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Problem Definition:Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equa... 阅读全文
posted @ 2015-07-21 20:17
曾可爱
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