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【LeetCode】Best Time to Buy and Sell Stock
Best Time to Buy and Sell StockSay you have an array for which theithelement is the price of a given stock on dayi.If you were only permitted to compl...
分类:其他好文   时间:2014-05-12 05:56:14    阅读次数:315
【LeetCode】Best Time to Buy and Sell Stock II
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:2014-05-10 00:24:49    阅读次数:255
【LeetCode】Best Time to Buy and Sell Stock III
转载:http://blog.csdn.net/fightforyourdream/article/details/14503469题目:最佳时间买入卖出股票:你有一个数组保存了股票在第i天的价钱,现在你最多进行两次买卖,但同一时间你手上只能保持一个股票,如何赚的最多思路:知道要用DP做,但是一开始...
分类:其他好文   时间:2014-05-09 20:01:47    阅读次数:335
POJ1742可行性背包
题目: Description People in Silverland use coins.They have coins of value A1,A2,A3...An Silverland dollar.One day Tony opened his money-box and found there were some coins.He decided to buy a very n...
分类:其他好文   时间:2014-05-09 15:00:55    阅读次数:345
Best Time to Buy and Sell Stock
Say you have an array for which theithelement is the price of a given stock on dayi.If you were only permitted to complete at most one transaction (ie...
分类:其他好文   时间:2014-05-09 13:13:02    阅读次数:283
cheap jordan 11 concord 2014 for sale
Everyone knows thejordan 11 concord 2014release here we are at new popular and anticipated approaching Jordan 11 low top usually set to Saturday at 8:...
分类:其他好文   时间:2014-05-07 18:46:26    阅读次数:318
0DAY漏洞之谷歌搜索 -中国寒龙网病毒联盟
这里公布一个关于aspx网站程序的oday方法很简单。直接爆出管理密码。也是利用注入漏洞。利用代码谷歌搜索关键字:inurl:scoreindex.aspxcart.aspx?act=buy&id=1 and (SelectTop1char(124)%2BisNull(cast([Name] as ...
分类:其他好文   时间:2014-05-07 13:10:40    阅读次数:606
leetcode第一刷_Best Time to Buy and Sell Stock II
这道题虽然是上一道题的增强,但是反而简单了。可以交易无数次,但是买卖必须成对的出现。 为了简单起见,我用abc三股股票来说明,且忽略掉相等的情况。三个数一共有六种大小关系。注意他们之间的先后顺序是不能乱的。 1. a 2. b 3. a 4. b 5. c 6. c 好的,你已经看出来了,只要当相邻的两个数是后面一个较大时,就之间累计上他们的差,否则,pass。直观一点的表述,只要...
分类:其他好文   时间:2014-05-07 12:33:11    阅读次数:512
leetcode第一刷_Best Time to Buy and Sell Stock III
这道题还是挺难的,属于我前面提到的,给个数组,线性时间找出个什么东西,虽然上面的两个买卖股票也是这类,不过相比之下稚嫩多了。有关至少至多的问题比较烦人,不好想,等再做一些题,可能会发现什么规律。这道题的情况还是比较少的,要么买卖了两次,要么一次。 买卖一次的情况,已经解决过了,现在分析买卖两次的情况。两次买卖之间是没有交叉的,即下一次买之前一定已经卖掉了。最容易想到,穷去分点,每个部分都按照买卖...
分类:其他好文   时间:2014-05-07 11:27:50    阅读次数:331
线段树 --- (区间维护+逆推)
Buy Tickets Time Limit:4000MS Memory Limit:65536KB 64bit IO Format:%I64d & %I64u DescriptionRailway tickets were difficult to buy around the Lunar New...
分类:其他好文   时间:2014-05-04 12:01:48    阅读次数:306
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