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1452: [JSOI2009]Count - BZOJ
DescriptionInputOutputSample InputSample Output12HINT一开始还想什么离线做,其实不用,空间足够,我们直接开100个二维树状数组,然后就行了但是如果c范围很大就离线做好一些 1 type 2 tree=array[0..300,0..300]...
分类:Web程序   时间:2014-06-03 12:26:54    阅读次数:277
READ TABLE ..... BINARY SEARCH问题
Read Table 的语法很多,这里说一种特殊情况,Read Table 中查询的时候对标准内表经常有一种二分优化查找,用Binary search的时候首先必须要有查询条件;但如果查询条件满足的项目不至一条时,这时得到的是这些数据中索引排在最前面的数据; 如: 001 0001 2010010....
分类:其他好文   时间:2014-06-03 12:06:45    阅读次数:224
UVA 10827 Maximum sum on a torus
算法入门经典训练指南88页练习::这道题只要把原矩阵扩大4倍,那么其跟最大子矩阵的题目就很类似,把二维转化成一维,求最大的序列和,不过这个序列的长度不能超过n。长度不能超过n? 那这道题又跟hdu 3415HDU 3415 Max Sum of Max-K-sub-sequence (单调队列) 1...
分类:其他好文   时间:2014-05-30 18:14:46    阅读次数:471
Sum Root to Leaf Numbers
Given a binary tree containing digits from0-9only, each root-to-leaf path could represent a number.An example is the root-to-leaf path1->2->3which rep...
分类:其他好文   时间:2014-05-30 16:32:52    阅读次数:226
Max Points on a Line
Givennpoints on a 2D plane, find the maximum number of points that lie on the same straight line./** * Definition for a point. * struct Point { * ...
分类:其他好文   时间:2014-05-30 16:27:19    阅读次数:238
Best Time to Buy and Sell Stock III
Say you have an array for which theithelement is the price of a given stock on dayi.Design an algorithm to find the maximum profit. You may complete a...
分类:其他好文   时间:2014-05-30 16:19:05    阅读次数:320
Populating Next Right Pointers in Each Node II
Follow up for problem "Populating Next Right Pointers in Each Node".What if the given tree could be any binary tree? Would your previous solution stil...
分类:其他好文   时间:2014-05-30 16:17:49    阅读次数:210
Flatten Binary Tree to Linked List
Given a binary tree, flatten it to a linked list in-place.For example,Given 1 / \ 2 5 / \ \ 3 4 6The flattened t...
分类:其他好文   时间:2014-05-30 16:15:02    阅读次数:224
Symmetric Tree
Given a binary tree, check whether it is a mirror of itself (ie, symmetric around its center).For example, this binary tree is symmetric: 1 / \ ...
分类:其他好文   时间:2014-05-30 16:13:38    阅读次数:334
Construct Binary Tree from Inorder and Postorder Traversal
Given inorder and postorder traversal of a tree, construct the binary tree.Note:You may assume that duplicates do not exist in the tree./** * Definiti...
分类:其他好文   时间:2014-05-30 16:12:22    阅读次数:288
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