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leetcode——Two Sum 两数之和(AC)
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 numbers such that they add up to the target, whe...
分类:其他好文   时间:2014-06-09 23:14:45    阅读次数:264
leetcode--Two Sum
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...
分类:其他好文   时间:2014-06-05 14:15:07    阅读次数:221
LeetCode: Two Sum 题解
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...
分类:其他好文   时间:2014-05-26 19:50:39    阅读次数:314
LeetCode:Two Sum
题目:       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 numbers such that they add up t...
分类:其他好文   时间:2014-05-21 07:42:18    阅读次数:230
two sum
Question 1: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...
分类:其他好文   时间:2014-05-19 09:35:41    阅读次数:321
leetcode:3sum closet
题目:给一个数组和给定的目标值,要求在数组里找出三个元素,这三个元素的和最接近目标值,当然等于是最好的。 用3sum的方法,把判定条件作些修改。 int twoSum(vector &num, int start, int target) { if(num.size() = num.size()) return -target; int head = start; int t...
分类:其他好文   时间:2014-05-18 10:49:12    阅读次数:217
[leetcode]:Two Sum
题目:给定一个数组,以及一个 target 值,target 表示目标和,要求在数组中找到两个数,xi,xj,使得 xi + xj = target。返回值是找到的两个数的下标索引,升序排序。假定至少存在一对解。 分析:对于要处理数组的问题,我们的理想状态都是给定的数组是有序的就好了,在有序后,我们就可以首位各放一个标记。类似于二分查找。 vector twoSum(vector &n...
分类:其他好文   时间:2014-05-18 08:04:03    阅读次数:234
【LeetCode】Two Sum
Two SumGiven 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...
分类:其他好文   时间:2014-05-15 10:48:59    阅读次数:322
leetcode第一刷_3Sum
估计大家都会做twoSum,一头一尾两个指针,跟据和的大小移动就行了。 3sum能不能用相同的方法呢,我尝试用暴力做,居然过了。思路是先把数组排个序,让相同数字的都靠在一起,然后固定一个数,其他两个数就按照twosum的那一套来,只不过计算sum的时候多算了一个数而已。需要注意一个问题,靠在一起一样的数,只能在第一次遇到它的时候用,更准确一点说,每个相同的数,只有一次作为i或j或k的机会,而且不...
分类:其他好文   时间:2014-05-15 01:29:41    阅读次数:248
【LeetCode】- Two Sum(两数相加)
[ 问题: ] 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 numbers such that they add up to the ta...
分类:其他好文   时间:2014-05-15 00:04:39    阅读次数:377
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