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Given an unsorted array of integers, find the length of the longest consecutive elements sequence. 阅读全文
posted @ 2014-07-06 22:43
jdflyfly
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Given two words (start and end), and a dictionary, find all shortest transformation sequence(s) from start to end 阅读全文
posted @ 2014-07-05 00:26
jdflyfly
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摘要：
Given two words (start and end), and a dictionary, find the length of shortest transformation sequence from start to end, such that: 阅读全文
posted @ 2014-07-03 22:50
jdflyfly
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Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases. 阅读全文
posted @ 2014-07-03 22:19
jdflyfly
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ay you have an array for which the ith element is the price of a given stock on day i.
Design an algorithm to find the maximum profit. You may complete at most two transactions. 阅读全文
posted @ 2014-07-03 22:15
jdflyfly
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Say you have an array for which the ith element is the price of a given stock on day i. 阅读全文
posted @ 2014-07-03 21:59
jdflyfly
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ay you have an array for which the ith element is the price of a given stock on day i. 阅读全文
posted @ 2014-07-03 21:53
jdflyfly
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Given a binary tree, find the maximum path sum. 阅读全文
posted @ 2014-07-03 21:42
jdflyfly
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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
posted @ 2014-07-03 21:30
jdflyfly
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Follow up for problem "Populating Next Right Pointers in Each Node".
What if the given tree could be any binary tree? Would your previous solution still work? 阅读全文
posted @ 2014-07-03 21:17
jdflyfly
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