123. Best Time to Buy and Sell Stock III Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find the maximum profit. You may complete at most two transactions. Note:You may not engage in mul
解题: 假如现在有一堆长度大于3小于9的电话号码,用座机呼叫,如果出现这样的号码[123和12345]那么12345将永远不会被拨出,因为拨到123的时候电话已经呼出了,试写一个函数输出所有不能被呼出的电话号码[指定传入参数类型如示例所示] 函数参数示例: public void function(int [] numbers){} package JingDian; public class Pnumber { public static void main(String[] args){ i
121. Say you have an array for which the ith element is the price of a given stock on day i. If you were only permitted to complete at most one transaction (ie, buy one and sell one share of the stock), design an algorithm to find the maximum profit.
同事问我,咱们从数据库里面获取数据,用ajax的方式展示到前台页面.啥都不说了,动手写个案例吧. 1,建立一个页面: <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <script type="text/javascript&quo
树状数组有两种情况:插点问线和插线问点.这道题是插线问点. 由于树状数组最简单的作用是计算1~x的和,所以给出(a, b. c).表示(a,b)区间添加c, 那我们仅仅须要在a点原来的基础上添加c,然后在b点原来的基础上更新-c,这样我们算终于结果的时候在(a. b)之间的就是添加了c.在区间之外的就是没有添加. 代码: #include <stdio.h> #include <string.h> #define M 1000005 int c[M], m; int lowbit(
链接 http://codeforces.com/contest/123/problem/A 题目 You are given a string s, consisting of small Latin letters. Let's denote the length of the string as |s|. The characters in the string are numbered starting from 1. Your task is to find out if it is
Description Ilya is working for the company that constructs robots. Ilya writes programs for entertainment robots, and his current project is "Bob", a new-generation game robot. Ilya's boss wants to know his progress so far. Especially he is int