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Delete Duplicate records
2015.8.31 查询目标 DeleteDuplicate Emails Writea SQL query to delete all duplicate email entries in a table named Person,keeping only unique emails based on its smallest Id. 题目来自 Leetcode Person表如下: ...
分类:其他好文   时间:2015-09-01 10:46:05    阅读次数:125
*Kth Smallest Element in a BST
题目:Given a binary search tree, write a functionkthSmallestto find thekth smallest element in it.Note:You may assume k is always valid, 1 ≤ k ≤ BST's t...
分类:其他好文   时间:2015-08-31 06:26:51    阅读次数:202
POJ1050-To the Max
描述: Given a two-dimensional array of positive and negative integers, a sub-rectangle is any contiguous sub-array of size 1*1 or greater located withi....
分类:其他好文   时间:2015-08-30 11:09:30    阅读次数:149
pat1038. Recover the Smallest Number (30)
1038. Recover the Smallest Number (30)时间限制400 ms内存限制65536 kB代码长度限制16000 B判题程序Standard作者CHEN, YueGiven a collection of number segments, you are suppose...
分类:其他好文   时间:2015-08-30 06:20:47    阅读次数:129
【优先队列之多路合并】UVA - 11997 K Smallest Sums
Source : UVA - 11997 K Smallest Sums http://acm.hust.edu.cn/vjudge/problem/viewProblem.action?id=18702题意有k个整数数组,各包含k个元素,从每个数组中选取一个元素加起来,可以得到k^k个和,求这些和中最小的k个值。 示例Sample Input 3 1 8 5 9 2 5 10 7 6...
分类:其他好文   时间:2015-08-28 17:48:08    阅读次数:178
poj 2718 Smallest Difference(穷竭搜索dfs)
DescriptionGiven a number of distinct decimal digits, you can form one integer by choosing a non-empty subset of these digits and writing them in some...
分类:其他好文   时间:2015-08-28 00:26:05    阅读次数:233
uva 12307 - Smallest Enclosing Rectangle(旋转卡壳)
题目链接:uva 12307 - Smallest Enclosing Rectangle 两组踵对点围成长方形,枚举出所有可行长方形维护最小值。 #include #include #include #include #include #include using namespace std; typedef pair pii; const double pi ...
分类:其他好文   时间:2015-08-27 15:28:58    阅读次数:216
HDU 1081 To The Max
Problem Description:Given a two-dimensional array of positive and negative integers, a sub-rectangle is any contiguous sub-array of size 1 x 1 or grea...
分类:其他好文   时间:2015-08-21 11:02:59    阅读次数:149
UVA 11997 K Smallest Sums
题目链接: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=3148题意:给定k个数组,每个数组k个数字,要求每个数字选出一个数字,构成和,这样一共有kk种情况,要求输出最小的k个和 其实只要能求出2组的前k个值,然后不断两两合并就可以了代码:#incl...
分类:其他好文   时间:2015-08-18 21:29:56    阅读次数:131
最大子矩阵和
DescriptionGiven a two-dimensional array of positive and negative integers, a sub-rectangle is any contiguous sub-array of size 1*1 or greater located...
分类:其他好文   时间:2015-08-15 16:24:37    阅读次数:89
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