Time limit: 3.000 seconds限时:3.000秒 Background背景 Stacks and Queues are often considered the bread and butter of data structures and find use in architecture, parsing, operating systems, and discrete event simulation. Stacks are also important in the t…

水水题.给出煎饼数列, 一次只能让第一个到第i个数列全部反转,要求把数列排序为升序. 算法点破后不值几钱... 只要想办法把最大的煎饼放到最后一个,然后就变成前面那些煎饼的数列的子题目了.递归或循环即可. 把大饼放后面只要先让前面翻转使大饼排在后面,再整体翻转让大饼排到后面. 这题不是求最优解,我也不知道这样是不是最优解. AC代码: #include <cstdio> #include <cstring> int const maxn = 31; int arr[maxn], n…

这个题没什么算法,就是想出怎么把答案构造出来就行. 思路:越大的越放在底端,那么每次就找出还没搞定的最大的,把它移到当前还没定好的那些位置的最底端,定好的就不用管了. 这道题要处理好输入,每次输入的一行中是带空格的,以换行符结束一组数据的输入,那么用getline()函数.再用stringstream(这个可以自动转格式),非常方便的就处理了输入的问题.另外注意max_element和min_element都是左闭右开的. #include<iostream> #include<cstd…

[UVa120] Stacks of Flapjacks 算法入门经典第8章8-1 (P236) 题目大意:有一个序列,可以翻转[1,k],构造一种方案使得序列升序排列. 试题分析:从插入排序即可找到思路.每次我们优先地将没有到自己位置上的.最大的数挪到自己的位置上. 为什么可以这样做呢?难道不会改变已经排好序的么. 不会,因为我们从大往小处理,翻转的是前面的一段,而排好序的是后面一段,因此肯定不会打乱后面的. 对于每一个数,设其下标为pos,已经排好序的有x个,那么我们先将pos其变为1,即翻…

 Stacks of Flapjacks  Background Stacks and Queues are often considered the bread and butter of data structures and find use in architecture, parsing, operating systems, and discrete event simulation. Stacks are also important in the theory of formal…

120 - Stacks of Flapjacks 题目看了半天......英语啊!!! 好久没做题...循环输入数字都搞了半天...罪过啊!!! 还是C方便一点...其实C++应该更方便的...C++得再看看!!! #include <iostream> #include <cstdio> using namespace std; /*翻转*/ void myReverse(int arr[],int s,int e) { while (s<e) { int temp=ar…

UVA - 120  Stacks of Flapjacks Time Limit: 3000MS   Memory Limit: Unknown   64bit IO Format: %lld & %llu Description Background Stacks and Queues are often considered the bread and butter of data structures and find use in architecture, parsing, oper…

                                                 Stacks of Flapjacks  题目链接:Click Here~ 题目描写叙述:     给你n个数.要你得到的最后结果是从下到大排序.可是给出的序列不一定是有序你.要通过你的调整.问:要经过哪几个位置上的数的调整? 算法分析:     一開始,我的思路是直接模拟一边消除逆序数就能够了,由于我看数据非常小,仅仅有30.可是提交之后却TEL了. 后来上网查了一下.看到有一个人的思路还是非…

 Stacks of Flapjacks  Background Stacks and Queues are often considered the bread and butter of data structures and find use in architecture, parsing, operating systems, and discrete event simulation. Stacks are also important in the theory of formal…

Stacks of Flapjacks Background Stacks and Queues are often considered the bread and butter of data structures and find use in architecture, parsing, operating systems, and discrete event simulation. Stacks are also important in the theory of formal l…