Sum of Consecutive Prime Numbers Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 25225 Accepted: 13757 Description Some positive integers can be represented by a sum of one or more consecutive prime numbers. How many such representatio…
Prime Ring Problem Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 40339 Accepted Submission(s): 17813 Problem Description A ring is compose of n circles as shown in diagram. Put natural num…
4 Values whose Sum is 0 Time Limit: 15000MS Memory Limit: 228000K Total Submissions: 17875 Accepted: 5255 Case Time Limit: 5000MS Description The SUM problem can be formulated as follows: given four lists A, B, C, D of integer values, compute how man…
Prime Path Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 14091 Accepted: 7959 Description The ministers of the cabinet were quite upset by the message from the Chief of Security stating that they would all have to change the four-digit r…
Bound Found Time Limit: 5000MS Memory Limit: 65536K Total Submissions: 4056 Accepted: 1249 Special Judge Description Signals of most probably extra-terrestrial origin have been received and digitalized by The Aeronautic and Space Administration…
the algorithm of three version below is essentially the same, namely, Kadane's algorithm, which is of O(n) complexity. https://en.wikipedia.org/wiki/Maximum_subarray_problem the evolution of the implementations is to remove redundancy and do what is…
Self Numbers Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 22101 Accepted: 12429 Description In 1949 the Indian mathematician D.R. Kaprekar discovered a class of numbers called self-numbers. For any positive integer n, define d(n) to…
Specialized Four-Digit Numbers Time Limit: 2 Seconds Memory Limit: 65536 KB Find and list all four-digit numbers in decimal notation that have the property that the sum of its four digits equals the sum of its digits when represented in hexadeci…
1007. Maximum Subsequence Sum (25) 时间限制 400 ms 内存限制 65536 kB 代码长度限制 16000 B 判题程序 Standard 作者 CHEN, Yue Given a sequence of K integers { N1, N2, ..., NK }. A continuous subsequence is defined to be { Ni, Ni+1, ..., Nj} where 1 <= i <= j <= K. The …
Sum It Up Problem Description Given a specified total t and a list of n integers, find all distinct sums using numbers from the list that add up to t. For example, if t=4, n=6, and the list is [4,3,2,2,1,1], then there are four different sums that eq…
errors made, boundary conditions, <= vs < , decreasing vs increasing , ++, –, '0'/'1' vs 0/1 prototype of sum, return the starting position of c-style string containing the sum, just like sprintf return number of characters successfully read. p1=sum…
A. Case of the Zeros and Ones time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Andrewid the Android is a galaxy-famous detective. In his free time he likes to think about strings containing…
Fibonacci Again Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 43539 Accepted Submission(s): 20797 Problem Description There are another kind of Fibonacci numbers: F(0) = 7, F(1) = 11, F(n) = F(n…
Sum Problem Time Limit: 1000/500 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 338086 Accepted Submission(s): 85117 Problem Description Hey, welcome to HDOJ(Hangzhou Dianzi University Online Judge). In this pro…
Matrix Time Limit: 2 Seconds Memory Limit: 65536 KB Given an n*n matrix A, whose entries Ai,j are integer numbers ( 0 <= i < n, 0 <= j < n ). An operation SHIFT at row i ( 0 <= i < n ) will move the integers in the row one position…
FatMouse and Cheese Problem Description FatMouse has stored some cheese in a city. The city can be considered as a square grid of dimension n: each grid location is labelled (p,q) where 0 <= p < n and 0 <= q < n. At each grid location Fatmouse…
一.功能说明: 可以解决类似 http://****/news 情形,Url路径支持正则匹配. 二.操作步骤: 1.增加URL重写模块: using System; using System.IO; using System.Text.RegularExpressions; using System.Web; using System.Xml; /// <summary> /// URL重写Module /// </summary> public class UrlRewriteM…
一.功能说明: 可以解决类似 http://****/news 情形,Url路径支持正则匹配. 二.操作步骤: 1.增加URL重写模块: using System; using System.IO; using System.Text.RegularExpressions; using System.Web; using System.Xml; /// <summary> /// URL重写Module /// </summary> public class UrlRewriteM…
Time Limit:3000MS Memory Limit:65536KB 64bit IO Format:%I64d & %I64u Submit Status Practice POJ 2406 Appoint description: Description Given two strings a and b we define a*b to be their concatenation. For example, if a = "abc" and b = "…
人见人爱A+B Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 30385 Accepted Submission(s): 20250 Problem Description HDOJ上面已经有10来道A+B的题目了,相信这些题目曾经是大家的最爱,希望今天的这个A+B能给大家带来好运,也希望这个题目能唤起大家对ACM曾经的热爱.…
1 JDBC连接数据库6步 Load the JDBC Driver Establish the Database Connection Create a Statement Object Execute a Query Process the Results Close the Connection 2 事务的4大特性 答:原子性A,一致性C,隔离性I,永久性D 3.select count(*) from student 和select count(id) from student 之间的区…
How to Type Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 6211 Accepted Submission(s): 2804 Problem Description Pirates have finished developing the typing software. He called Cathy to tes…
