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 single ...
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其他好文 时间:
2014-09-07 22:19:15
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280
Determine whether an integer is a palindrome. Do this without extra space.思路:先找出x的有效最高位,然后从两侧依次比较最高位和最低位即可。 1 class Solution { 2 public: 3 bool is...
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其他好文 时间:
2014-09-07 20:57:25
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206
Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.For example,"A man, a plan, a canal: Pana...
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其他好文 时间:
2014-09-07 12:15:55
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292
Given amxngrid filled with non-negative numbers, find a path from top left to bottom right whichminimizesthe sum of all numbers along its path.Note:Yo...
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其他好文 时间:
2014-09-07 11:00:24
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213
判断一个 int 是否为回文的有一点要注意的是:int x;int _x = abs(x);对 x 取绝对值的时候,会发生溢出。比如 x = INT_MIN 即 -2147483648 而 INT_MAX 为2147483647其实,负数不是回文数
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其他好文 时间:
2014-09-06 21:08:53
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163
注意题目中的一句话:If a number m has bigger evaluating value than all the numbers smaller than it。。。这让我重新想过反素数的定义,应该 是比n小的数的约数的个数都 小于 n。所以,应该取最小的一个值#include #i...
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其他好文 时间:
2014-09-06 17:21:53
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158
Given a triangle, find the minimum path sum from top to bottom. Each step you may move to adjacent numbers on the row below.For example, given the fol...
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其他好文 时间:
2014-09-06 17:20:33
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229
Given a m x n grid filled with non-negative numbers, find a path from top left to bottom right which minimizes the sum of all numbers along its path.N...
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其他好文 时间:
2014-09-06 05:27:22
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223
Given a collection of candidate numbers (C) and a target number (T), find all unique combinations in C where the candidate numbers sums to T.Each numb...
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其他好文 时间:
2014-09-05 17:35:41
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227