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All DNA is composed of a series of nucleotides abbreviated as A, C, G, and T, for example: "ACGAATTCCG". When studying DNA, it is sometimes useful to ... 阅读全文
posted @ 2015-08-02 23:33
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Given a list of non negative integers, arrange them such that they form the largest number.For example, given[3, 30, 34, 5, 9], the largest formed num... 阅读全文
posted @ 2015-08-02 23:06
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The demons had captured the princess (P) and imprisoned her in the bottom-right corner of a dungeon. The dungeon consists of M x N rooms laid out in a... 阅读全文
posted @ 2015-08-02 18:31
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Implement an iterator over a binary search tree (BST). Your iterator will be initialized with the root node of a BST.Callingnext()will return the next... 阅读全文
posted @ 2015-08-02 18:04
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Given an integern, return the number of trailing zeroes inn!.Note:Your solution should be in logarithmic time complexity.public class Solution { pu... 阅读全文
posted @ 2015-08-02 17:41
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Related to questionExcel Sheet Column TitleGiven a column title as appear in an Excel sheet, return its corresponding column number.For example: A ... 阅读全文
posted @ 2015-08-02 17:33
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Given an array of sizen, find the majority element. The majority element is the element that appears more than⌊ n/2 ⌋times.You may assume that the arr... 阅读全文
posted @ 2015-08-02 17:06
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Given a positive integer, return its corresponding column title as appear in an Excel sheet.For example: 1 -> A 2 -> B 3 -> C ... 26 ->... 阅读全文
posted @ 2015-08-02 16:57
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Given two integers representing the numerator and denominator of a fraction, return the fraction in string format.If the fractional part is repeating,... 阅读全文
posted @ 2015-08-02 16:06
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Compare two version numbersversion1andversion2.Ifversion1>version2return 1, ifversion1len2){ for(int i=len2;i0?1:-1; return 0; }} 阅读全文
posted @ 2015-08-02 15:22
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Given an unsorted array, find the maximum difference between the successive elements in its sorted form.Try to solve it in linear time/space.Return 0 ... 阅读全文
posted @ 2015-08-02 12:30
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A peak element is an element that is greater than its neighbors.Given an input array wherenum[i] ≠ num[i+1], find a peak element and return its index.... 阅读全文
posted @ 2015-08-02 11:20
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