在前面的讨论里我们提到自由数据结构就是产生某种类型的最简化结构,比如:free monoid, free monad, free category等等.我们也证明了List[A]是个free monoid.我们再看看free monad结构Free的定义:scalaz/Free.scala /** A free operational monad for some functor `S`. Binding is done using the heap instead of the stack,
import java.util.*; import java.math.*; public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int aPos = sc.nextInt(); int aMov = sc.nextInt(); int aThr = sc.nextInt(); int bPos = sc.nextInt(); int bMov = s
题目链接: 传送门 A strange lift Time Limit: 1000MS Memory Limit: 32768 K Description There is a strange lift.The lift can stop can at every floor as you want, and there is a number Ki(0 <= Ki <= N) on every floor.The lift have just two buttons: up and
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1548 A strange lift Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 21754 Accepted Submission(s): 7969 Problem Description There is a strange li
题目链接: C. Riding in a Lift time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Imagine that you are in a building that has exactly n floors. You can move between the floors in a lift. Let's num
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 13724 Accepted Submission(s): 5239 Problem Description There is a strange lift.The lift can stop can at every floor as you want, and there is a
题目:http://acm.hdu.edu.cn/showproblem.php?pid=1548 There is a strange lift.The lift can stop can at every floor as you want, and there is a number Ki(0 <= Ki <= N) on every floor.The lift have just two buttons: up and down.When you at floor i,if you
题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=1548 A strange lift Description There is a strange lift.The lift can stop can at every floor as you want, and there is a number $K_i(0 \leq K_i \leq N)$ on every floor.The lift have just two buttons: up
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1548 There is a strange lift.The lift can stop can at every floor as you want, and there is a number Ki(0 <= Ki <= N) on every floor.The lift have just two buttons: up and down.When you at floor i,if yo
A strange lift http://acm.hdu.edu.cn/showproblem.php?pid=1548 Problem Description There is a strange lift.The lift can stop can at every floor as you want, and there is a number Ki(0 <= Ki <= N) on every floor.The lift have just two buttons: up and
C. Riding in a Lift Time Limit: 1 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/480/problem/C Description Imagine that you are in a building that has exactly n floors. You can move between the floors in a lift. Let's number the floors f
A strange lift DescriptionThere is a strange lift.The lift can stop can at every floor as you want, and there is a number Ki(0 <= Ki <= N) on every floor.The lift have just two buttons: up and down.When you at floor i,if you press the button "U
A strange lift Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 11341 Accepted Submission(s): 4289 Problem Description There is a strange lift.The lift can stop can at every floor as you want
A strange lift Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 8550 Accepted Submission(s): 3241 Problem Description There is a strange lift.The lift can stop can at every floor as you want,
