4sum

leetcode 131: 4sum by python

4SumJan27'122865/8463Givenanarray S of n integers,arethereelements a, b, c,and d in S suchthat a + b + c + d =target?Findalluniquequadrupletsinthearraywhichgivesthesumoftarget.Note:Elementsinaquadrupl
xudli·2013-06-19 06:00

[LeetCode]4Sum

classSolution{ //fixi,j,thenletpqwalktofindoutthefourSumtargetO(n^3) //thereexistsO(n^2logn)solution public: vector>fourSum(vector&num,inttarget){ //StarttypingyourC/C++solutionbelow //DONOTwriteintma
sunbaigui·2013-05-27 19:00

[LeetCode] 4sum

    class Solution { public: vector<vector<int> > fourSum(vector<int> &num, int target) { sort(num.begin(),num.end()); vector<vector<i
cozilla·2013-05-15 18:00

15*4+18*4+21*4+24*4+。。。+99*4=？这个用什么公式来算

/bin/bashd=4sum=0for((n=5;n<=99;n=n+3))do let "k=d*n"   echo $k let "sum += k"   echo $sumdoneecho "sum
lrm929·2013-04-22 16:47

【leetcode】4Sum

Question： Given an arraySofnintegers, are there elementsa,b,c, anddinSsuch thata+b+c+d= target? Find all unique quadruplets in the array which gives the sum of target. Note: Elements in a quad
king_tt·2013-04-12 22:00

【leetcode】4Sum

Question：Givenanarray S of n integers,arethereelements a, b, c,and d in S suchthat a + b + c + d =target?Findalluniquequadrupletsinthearraywhichgivesthesumoftarget.Note:Elementsinaquadruplet(a,b,c,d)m
sunboy_2050·2013-04-12 22:00

4Sum

GivenanarraySofnintegers,arethereelementsa,b,c,anddinSsuchthata+b+c+d=target?Findalluniquequadrupletsinthearraywhichgivesthesumoftarget.Note:Elementsinaquadruplet(a,b,c,d)mustbeinnon-descendingorder.(
violet_program·2013-04-03 04:00

leetcode: 2Sum/3Sum/3SumClosest/4Sum系列问题

leetcode（http://leetcode.com/onlinejudge）上有好几道关于数组中几个数据和为target的题目。恰好正在看剑指offer中“和为s的两个数组这章”，据此思想，leetcode上的三道题目都被我解决了。总结一下。1.twoSum:输入一个递增数组和一个数字s，在数组中查找两个数使得它们的和正好是s。既然题目中已经提到了“递增数组”,那么肯定不会暴力了。因此肯定有
li4951·2013-03-19 19:00

4Sum

Givenanarray S of n integers,arethereelements a, b, c,and d in S suchthat a + b + c + d =target?Findalluniquequadrupletsinthearraywhichgivesthesumoftarget.Note:Elementsinaquadruplet(a,b,c,d)mustbeinno
beiyetengqing·2013-01-05 08:00

4Sum

本来以为只要在3Sum外面再包一层循环就好了，可是。。。在Judge Large的时候还是超时了 呜呜呜 public class Solution { public ArrayList<ArrayList<Integer>> fourSum(int[] num, int target) { Arrays.sort(num);
testforvln·2012-10-27 22:00

LeetCode: 4Sum

Problem:Givenanarray S of n integers,arethereelements a, b, c,and d in S suchthat a + b + c + d =target?Findalluniquequadrupletsinthearraywhichgivesthesumoftarget.Note:Elementsinaquadruplet(a,b,c,d)mu
Tingmei·2012-09-30 15:00

LeetCode 4Sum

4SumGivenanarraySofnintegers,arethereelementsa,b,c,anddinSsuchthata+b+c+d=target?Findalluniquequadrupletsinthearraywhichgivesthesumoftarget.Note:Elementsinaquadruplet(a,b,c,d)mustbeinnon-descendingord
maqingli87·2012-09-12 21:00
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