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原题地址：https://oj.leetcode.com/problems/pascals-triangle-ii/题意：Given an indexk, return thekthrow of the Pascal's triangle.For example, givenk= 3,Return[... 阅读全文
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原题地址：https://oj.leetcode.com/problems/pascals-triangle/题意：GivennumRows, generate the firstnumRowsof Pascal's triangle.For example, givennumRows= 5,Ret... 阅读全文
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原题地址：https://oj.leetcode.com/problems/triangle/题意：Given a triangle, find the minimum path sum from top to bottom. Each step you may move to adjacent n... 阅读全文
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算法导论上面快速排序的实现。代码：def partition(array, left, right): i = left-1 for j in range(left, right): if array[j] <= array[right]: i += ... 阅读全文
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原题地址：https://oj.leetcode.com/problems/best-time-to-buy-and-sell-stock-iii/题意：Say you have an array for which theithelement is the price of a given sto... 阅读全文
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原题地址：https://oj.leetcode.com/problems/best-time-to-buy-and-sell-stock-ii/题意：Say you have an array for which theithelement is the price of a given stoc... 阅读全文
摘要：
原题地址：https://oj.leetcode.com/problems/best-time-to-buy-and-sell-stock/题意：Say you have an array for which theithelement is the price of a given stock o... 阅读全文
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原题地址：https://oj.leetcode.com/problems/valid-palindrome/题意：Given a string, determine if it is a palindrome, considering only alphanumeric characters an... 阅读全文
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原题地址：https://oj.leetcode.com/problems/word-ladder/题意：Given two words (startandend), and a dictionary, find the length of shortest transformation seque... 阅读全文
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原题地址：https://oj.leetcode.com/problems/longest-consecutive-sequence/题意：Given an unsorted array of integers, find the length of the longest consecutive ... 阅读全文
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原题地址：https://oj.leetcode.com/problems/surrounded-regions/题意：Given a 2D board containing'X'and'O', capture all regions surrounded by'X'.A region is cap... 阅读全文