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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:2014-10-19 22:35:19    阅读次数:165
HDU 2680 Choose the best route (最短路)
Choose the best routeTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 7361Accepted Submission(s): 2...
分类:其他好文   时间:2014-10-19 15:30:34    阅读次数:279
百度网页搜索部rank团队4S面试
1. du和df的区别?du统计文件的大小,需要遍历整个目录;df统计磁盘的使用情况; du -s /dir du -ab /dir ; df -h /disk1正常情况下两者数值接近,但如果存在打开文件的进程,而该文件被rm或者mv出去,则统计该目录du空闲空间大于df的空间空间;因为df记录磁....
分类:Web程序   时间:2014-10-19 10:15:04    阅读次数:737
Leetcode - Best Time to Buy and Sell Stock
知道是求连续最大子数组后就简单了。但是注意边界条件,如果最大子数组之和<0,那就不要交易了, 返回0. public class Solution { public int maxProfit(int[] prices) { if(prices.length < 2) return 0; int n = prices....
分类:其他好文   时间:2014-10-19 00:06:49    阅读次数:146
Best Time to Buy and Sell Stock II
明白了上一题是求最大的连续子数组之和后,这题就更加简单了,遇到小于0的就不要加。 public class Solution { public int maxProfit(int[] prices) { if(prices.length < 2) return 0; int n = prices.length; ...
分类:其他好文   时间:2014-10-19 00:05:52    阅读次数:194
LeetCode 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:2014-10-18 22:14:23    阅读次数:151
poj3660 floyd
1 //Accepted 176 KB 16 ms 2 //一头牛,如果rank是能确定的,那么能打败他的牛的个数和被他打败的牛的个数的总和为n-1 3 #include 4 #include 5 #include 6 #include 7 #include 8 #inclu...
分类:其他好文   时间:2014-10-17 23:09:18    阅读次数:290
给群里的哥们写的sql(row_number、rank、dense_rank)
最近精力比较有限,有些常用的东西就先记录下来。方便以后自己查阅和总结。 一个哥们想要实现如下效果: DEPTNO ENAME SAL TOP3 部门工资 排序 ---------- ---------- ---------- ---------- 20 KING 5...
分类:数据库   时间:2014-10-17 15:40:06    阅读次数:181
Best Time to Buy and Sell Stock
题目描述: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 transactio...
分类:其他好文   时间:2014-10-17 02:09:43    阅读次数:293
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