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Design a stack that supports push, pop, top, and retrieving the minimum element in constant time.push(x) -- Push element x onto stack.pop() -- Removes... 阅读全文
posted @ 2015-03-09 20:33
A_zhu
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Compare two version numbersversion1andversion2.Ifversion1>version2return 1, ifversion1#include using namespace std;class Solution {public: int comp... 阅读全文
posted @ 2015-03-09 16:11
A_zhu
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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 @ 2015-03-09 15:38
A_zhu
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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 @ 2015-03-09 14:37
A_zhu
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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 @ 2015-03-09 14:23
A_zhu
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Reverse bits of a given 32 bits unsigned integer.For example, given input 43261596 (represented in binary as00000010100101000001111010011100), return ... 阅读全文
posted @ 2015-03-09 14:13
A_zhu
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