原文:3Sum

求和為指定值的三個數,麻煩的一點是,結果的集合不能有重復的。主要思路有兩個,一個是在求值過程中過濾去重,還有一個是用hash。當然不能偷懶直接用set lt vector lt int gt gt ,這樣會直接超時。 Dedup directly, LeetCode Judge Large, milli secs. vector lt vector lt int gt gt three sum ...

2012-08-30 15:00 0 4833 推薦指數:

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LeetCode 3Sum Closest

Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum of the three ...

Sun Oct 28 02:03:00 CST 2012 1 5482
[leetcode]3Sum @ Python

原題地址:http://oj.leetcode.com/problems/3sum/ 題意:從一個數組中找到三個數,使這三個數的和為0。有可能存在多組解,也有可能存在重復的解,所以需要去重。比如:num=[-1,0,1,2,-1,-4];那么存在兩組解:[[-1,0,1],[-1,-1,2 ...

Tue Apr 29 22:30:00 CST 2014 2 11356
[LeetCode] 3Sum Smaller

Problem Description: Given an array of n integers nums and a target, find the number of index tripl ...

Mon Aug 17 23:50:00 CST 2015 0 4780
LeetCode:3Sum, 3Sum Closest, 4Sum

3Sum Closest Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum ...

Mon Apr 07 08:21:00 CST 2014 0 9910
[leetcode]3Sum Closest @ Python

原題地址:http://oj.leetcode.com/problems/3sum-closest/ 題意:數組中每三個元素進行求和,找出所有和中大小最接近target的和,並返回這個和與target之間的差值。 解題思路:使用一個變量mindiff來監測和與target之間的差值,如果差值 ...

Wed Apr 30 00:06:00 CST 2014 0 3464
[LeetCode] 3Sum 解題思路

Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum ...

Sun Dec 20 03:21:00 CST 2015 0 3734
3Sum Closest leetcode java

題目: Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum of the three ...

Tue Jul 22 19:35:00 CST 2014 1 3618
【LeetCode】15. 3Sum

3Sum Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives ...

Wed Jul 09 03:38:00 CST 2014 0 4354
 
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