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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 at... 阅读全文
posted @ 2014-11-23 12:49
匡子语
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之前写过栈的，以为队列的也一样，结果一点都不一样。写了好久啊。因为栈是后进先出，先进去的数字不会影响后面的数字；而队列是先进先出，后进去的会受先进入的数字的影响。比如： (先) 1 9 3 8 4 (后) 这样的序列栈存储 1 9 就可以了，因为9弹出后，自然 1 就是最大的队列... 阅读全文
posted @ 2014-11-21 22:48
匡子语
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You are climbing a stair case. It takesnsteps to reach to the top.Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb... 阅读全文
posted @ 2014-11-21 16:26
匡子语
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Say you have an array for which theithelement is the price of a given stock on dayi.Design an algorithm to find the maximum profit. You may complete a... 阅读全文
posted @ 2014-11-21 15:58
匡子语
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Say you have an array for which theithelement is the price of a given stock on dayi.Design an algorithm to find the maximum profit. You may complete a... 阅读全文
posted @ 2014-11-20 16:43
匡子语
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题目：Say you have an array for which theithelement is the price of a given stock on dayi.If you were only permitted to complete at most one transaction ... 阅读全文
posted @ 2014-11-20 16:32
匡子语
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Given an array of integers, every element appearsthreetimes except for one. Find that single one.Note:Your algorithm should have a linear runtime comp... 阅读全文
posted @ 2014-11-20 16:00
匡子语
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题目：Given an array of integers, every element appearstwiceexcept for one. Find that single one.Note:Your algorithm should have a linear runtime complex... 阅读全文
posted @ 2014-11-20 14:35
匡子语
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题目：就是判断已有的数字是否冲突无效，若无效返回flase 有效返回true 不要求sudo可解用了char型的数字，并且空格用‘.'来表示的。思路：只要分别判断横向 竖向 3*3小块中的数字是否有重复或者无效就可以了 就是单纯的麻烦 不难#include#includeusing namespac... 阅读全文
posted @ 2014-11-20 11:32
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Given an array of integers, find two numbers such that they add up to a specific target number.The function twoSum should return indices of the two nu... 阅读全文
posted @ 2014-11-20 10:37
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