D. Minimum number of steps time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output We have a string of letters 'a' and 'b'. We want to perform some operations on it. On each step we choose one of s…
Number Sequence Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 124827 Accepted Submission(s): 30331 Problem Description A number sequence is defined as follows: f(1) = 1, f(2) = 1, f(n) = (A * f(…
B - Minimum Inversion Number Time Limit:1000MS Memory Limit:32768KB 64bit IO Format:%I64d & %I64u Submit Status Practice HDU 1394 Description The inversion number of a given number sequence a1, a2, ..., an is the number of pairs (ai, aj) that…
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…
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…
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…
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 = "…
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…
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…
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…
C. Jon Snow and his Favourite Number time limit per test 4 seconds memory limit per test 256 megabytes input standard input output standard output Jon Snow now has to fight with White Walkers. He has n rangers, each of which has his own strength. Als…
The Number Off of FFF Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 2813 Accepted Submission(s): 935 Problem Description X soldiers from the famous "FFF army" is standing in a line, from le…
Number of Containers Time Limit: 1 Second Memory Limit: 32768 KB For two integers m and k, k is said to be a container of m if k is divisible by m. Given 2 positive integers n and m (m < n), the function f(n, m) is defined to be the number of contain…
Gibonacci number Time Limit: 2 Seconds Memory Limit: 65536 KB In mathematical terms, the normal sequence F(n) of Fibonacci numbers is defined by the recurrence relation F(n)=F(n-1)+F(n-2) with seed values F(0)=1, F(1)=1 In this Gibonacci numbers…
D. Minimum number of steps time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output We have a string of letters 'a' and 'b'. We want to perform some operations on it. On each step we choose one of s…
D. Minimum number of steps time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output We have a string of letters 'a' and 'b'. We want to perform some operations on it. On each step we choose one of s…
cf劲啊 原题: We have a string of letters 'a' and 'b'. We want to perform some operations on it. On each step we choose one of substrings "ab" in the string and replace it with the string "bba". If we have no "ab" as a substring,…
http://codeforces.com/contest/805/problem/D D. Minimum number of steps time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output We have a string of letters 'a' and 'b'. We want to perform some opera…
805D - Minimum number of steps 思路:简单模拟,a每穿过后面一个b,b的个数+1,当这个a穿到最后,相当于把它后面的b的个数翻倍.每个a到达最后的步数相当于这个a与它后面已经到达最后的a之间的b的个数,只要从后面往前扫,记录b的个数,每遇到一个a,把b的个数加入答案,并且b的个数翻倍. 代码: #include<bits/stdc++.h> using namespace std; const int INF=0x3f3f3f3f; ; ; int main()…
