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题目：You are given annxn2D matrix representing an image.Rotate the image by 90 degrees (clockwise).Follow up:Could you do this in-place?代码：oj测试通过Runtime... 阅读全文
2015年1月18日
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题目：Given an indexk, return thekthrow of the Pascal's triangle.For example, givenk= 3,Return[1,3,3,1].Note:Could you optimize your algorithm to use onl... 阅读全文
2015年1月16日
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题目：GivennumRows, generate the firstnumRowsof Pascal's triangle.For example, givennumRows= 5,Return[ [1], [1,1], [1,2,1], [1,3,3,1], [1,4,6,4... 阅读全文
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题目：Given a non-negative number represented as an array of digits, plus one to the number.The digits are stored such that the most significant digit is... 阅读全文
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题目:Follow up for "Remove Duplicates":What if duplicates are allowed at mosttwice?For example,Given sorted array A =[1,1,1,2,2,3],Your function should ... 阅读全文
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题目：Given a sorted array, remove the duplicates in place such that each element appear onlyonceand return the new length.Do not allocate extra space fo... 阅读全文
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题目:Given an array and a value, remove all instances of that value in place and return the new length.The order of elements can be changed. It doesn't ... 阅读全文
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题目：You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a sing... 阅读全文
2015年1月11日
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题目：Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST.代码：oj测试通过Runtime:178 ms 1 # Definition... 阅读全文
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题目：A linked list is given such that each node contains an additional random pointer which could point to any node in the list or null.Return a deep co... 阅读全文
