Array Partition I 题目 "链接" 题目描述 给定大小为 2n 的整型数组,你的任务是将这些整数分为 组,即 (a1,b1), (a2, b2),...,(an, bn),使得所有的 min(ai,bi) 之和最大,其中i的值为从1到n。 输出上述要求中的 和 。 约定 1. 是一个 ...
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2018-12-18 11:01:18
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148
Given a linked list, swap every two adjacent nodes and return its head. Example: Note: Your algorithm should use only constant extra space. You may no ...
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2018-12-15 11:48:51
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117
Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses. For example, given n = 3, a solution set is: M ...
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2018-12-07 12:58:12
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You need to construct a string consists of parenthesis and integers from a binary tree with the preorder traversing way. The null node needs to be rep ...
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2018-12-05 23:20:14
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303
Given an array of 2n integers, your task is to group these integers into n pairs of integer, say (a1, b1), (a2, b2), …, (an, bn) which makes sum of mi ...
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2018-12-05 22:56:03
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Adapters counted: 144143Total time: 1548.035 seconds. Pairs: 50367942Joined: 9636485 19.132%Ambiguous: 40723752 80.853%No Solution: 7705 0.015%Too Sho ...
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2018-12-05 00:19:16
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267
Given two sequences of characters, print the length of the longest common subsequence of both sequences. Sequence 1: &nb ...
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2018-12-02 19:20:57
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225
Go to Elastic Beanstalk -> Configuration -> Security -> Virtual machine permissions -> EC2 key pair. Choose your key pair. If you do not have one, The ...
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2018-12-01 15:05:09
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186
Given an array nums, we call (i, j) an important reverse pair if i < j and nums[i] > 2*nums[j]. You need to return the number of important reverse pai ...
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2018-12-01 00:09:56
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235