洛谷题目链接:CF911E Stack Sorting Codeforces题目链接:Stack Sorting 题意翻译 给你一排列的一部分,让你补全整个排列使其字典序最大并且经过一个栈调整顺序之后能够顺序输出 题目描述 Let's suppose you have an array aa , a stack ss (initially empty) and an array bb (also initially empty). You may perform the following op…

911E - Stack Sorting 思路: 用栈来模拟,能pop就pop,记下一个需要pop的数为temp,那么如果栈非空,栈顶肯定大于temp,那么加入栈 栈顶值-1 到 temp 的值,否则加入栈 n 到 temp 的值,如果需要加入的数之前已经出现过,答案则不存在. 代码: #include<bits/stdc++.h> using namespace std; #define ll long long #define pb push_back #define meme(a,b)…

Let's suppose you have an array a, a stack s (initially empty) and an array b (also initially empty). You may perform the following operations until both a and s are empty: Take the first element of a, push it into s and remove it from a (if a is not…

之前在简书上初步总结过几个有关栈和队列的数据结构设计的题目.http://www.jianshu.com/p/d43f93661631 1.线性数据结构 Array Stack Queue Hash 2.非线性数据结构 Tree HashMap Heap/PriorityQueue 3.HashSet HashMap HashTable的区别: hashMap的键就组成一个HashSet HashTble实现是基于Dictionary类,而HashMap是基于Map接口 HashTable是线程…

Nearest Minimums 相同的数里最小的数里的最小距离 Solution Two Cakes Solution Three Garlands 瞎比试 Solution Inversion Counting 先算出来最初逆序对个数,对于每次选择,如果选出的区间里数对个数为偶数个,则其中正序对和逆序对个数可能分别为(奇数+奇数)或(偶数+偶数),此时总的逆序对奇偶性不变:如果选出的区间里数对个数为奇数个,则其中正序对和逆序对个数可能分别为(奇数+偶数)或(偶数+奇数),此时总的逆序对奇偶性…

我们用的比较多的非泛型集合类主要有 ArrayList类 和 HashTable类.我们经常用HashTable 来存储将要写入到数据库或者返回的信息,在这之间要不断的进行类型的转化,增加了系统装箱和拆箱的负担,14:31:45,例如我们需要在电子商务网站中存储用户的购物车信息(商品名,对应的商品个数)时,完全可以用 Dictionary<string, int> 来存储购物车信息,而不需要任何的类型转化. 1.数组是固定大小的,不能伸缩.虽然System.Array.Resize这个泛型方法…

[POJ1007]DNA Sorting 试题描述 One measure of ``unsortedness'' in a sequence is the number of pairs of entries that are out of order with respect to each other. For instance, in the letter sequence ``DAABEC'', this measure is 5, since D is greater than fo…

Topological Sorting Time limit: 1.0 secondMemory limit: 64 MB Michael wants to win the world championship in programming and decided to study N subjects (for convenience we will number these subjects from 1 to N). Michael has worked out a study plan…

C. Sorting Railway Cars   An infinitely long railway has a train consisting of n cars, numbered from 1 to n (the numbers of all the cars are distinct) and positioned in arbitrary order. David Blaine wants to sort the railway cars in the order of incr…

A problem of sorting Time Limit: 1 Sec Memory Limit: 256 MB 题目连接 http://bestcoder.hdu.edu.cn/contests/contest_chineseproblem.php?cid=627&pid=1001 Description 给出一张许多人的年龄和生日表.你需要从年轻到年老输出人们的名字.(没有人年龄相同) Input 第一行包含一个正整数T(T \leq 5)T(T≤5),表示数据组数. 对于每组数据,第…