在大部分时候我们从ADO中得到的数据都是DataTable.DataSet数据源,然而有强迫症的同学老是喜欢折腾,硬是要把它转换为实体集合,说是DataTable效率差云云,于是乎收到了同化. 必要信息 1,数据实体 public class UserInfo { public int ID { get; set; } public string name { get; set; } } 2,数据源(想象成从库中得到的数据) DataTable dt = new DataTable(); dt.
Description Tom is a commander, his task is destroying his enemy’s transportation system. Let’s represent his enemy’s transportation system as a simple directed graph G with n nodes and m edges. Each node is a city and each directed edge is a directe
ACM Computer Factory Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 10940 Accepted: 4098 Special Judge Description As you know, all the computers used for ACM contests must be identical, so the participants compete on equal terms. T
Nasty Hacks Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 3049 Accepted Submission(s): 2364 Problem Description You are the CEO of Nasty Hacks Inc., a company that creates small pieces of
Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpoints of line i is at (i, ai) and (i, 0). Find two lines, which together with x-axis forms a containe
