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搜索关键字:combination sum ii    ( 27716个结果
4Sum
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 ...
分类:其他好文   时间:2014-06-04 22:44:27    阅读次数:250
每天努力一点之SQL(二) count sum case when then group by
1.select sum(CASE WHEN A.[STATUS]=0 THEN 1 ELSE 0 end) as a1,sum(CASE A.[STATUS] WHEN 1 THEN 1 ELSE 0 end) as a2,sum(CASE A.[STATUS] WHEN 2 THEN 1 ELS...
分类:数据库   时间:2014-06-04 21:10:46    阅读次数:513
Minimum Path Sum
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...
分类:其他好文   时间:2014-06-04 20:57:08    阅读次数:360
Combination Sum
Given a set of candidate numbers (C) and a target number (T), find all unique combinations inCwhere the candidate numbers sums toT.Thesamerepeated num...
分类:其他好文   时间:2014-06-04 20:15:09    阅读次数:289
Combination Sum II
Given a collection of candidate numbers (C) and a target number (T), find all unique combinations inCwhere the candidate numbers sums toT.Each number ...
分类:其他好文   时间:2014-06-04 20:14:25    阅读次数:287
Leetcode: Best Time to Buy and Sell Stock II
一次过,思路是:最大收益可以由所有上升序列差价叠加中获得 1 public class Solution { 2 public int maxProfit(int[] prices) { 3 int profit = 0; 4 if (prices.lengt...
分类:其他好文   时间:2014-05-29 20:43:33    阅读次数:254
Coursera algorithm II PA4
题意:所给数据中是否有负环? 没有负环的图中所有路径中最短的值思路:1. bellmanford 判断负环2.flodyWarshall 求所有定点的最短路径细节:1. bellmanford 算法时间复杂度为 o(n^3), 因为图的使用邻接矩阵存储的, 使用邻接表代码会容易理解些, 引用 wik...
分类:其他好文   时间:2014-05-29 20:41:30    阅读次数:237
Coursera Algorithm Part II PA2
题意:computing a max-spacingk-clustering.spacing 是指两个 cluster 之间的最小距离输入:[number_of_nodes][edge 1 node 1] [edge 1 node 2] [edge 1 cost][edge 2 node 1] [e...
分类:其他好文   时间:2014-05-29 20:40:30    阅读次数:323
Coursera Algorithm II PA2 Q2
题意:what is the largest value ofksuch that there is ak-clustering with spacing at least 3? That is, how many clusters are needed to ensure that no pair...
分类:其他好文   时间:2014-05-29 20:39:26    阅读次数:305
[leetcode]Subsets II @ Python
原题地址:https://oj.leetcode.com/problems/subsets-ii/题意:Given a collection of integers that might contain duplicates,S, return all possible subsets.Note:E...
分类:编程语言   时间:2014-05-29 19:10:53    阅读次数:278
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