Rails poj-1363 题目大意:判断一个序列是否是1~n的合法出栈序列. 注释:$1\le n\le 10^4$. 想法:开始想到一种想法. 对于一段序列来讲,显然从首元素开始的连续小于尾元素的序列必定为合法出栈序列,所剩下的数所组成的序列也必为合法出栈序列. 黄色序列中所有数小于尾元素,不小于全序列最小值(废话),而且必定为全队最小值到尾元素-1的一个排列.绿色序列同理. 然后,我们递归处理,先判断前面的黄色序列是否是合法的全排列,绿色序列是否是合法的全排列,然后递归处理. 但是,Ed…

堆栈的模拟,给定序列,1,2,3,4,...判断堆栈出栈顺序是否合法 5 //5个数入栈1 2 3 4 5 //出栈顺序5 4 1 2 3 //出栈顺序0 //5个数的结束6 //6个数的入栈6 5 4 3 2 10 //6个数的结束0 //输入结束 数组作栈 a栈放目标出栈顺序,让1,2,3,4依次入stack栈,如果a[pos]和stack[top]比较,相同,pos++,top--即表示出栈,top开始为-1,表示为空栈 如果一开始a[0]=3,stack[0]=1,这个时候继续让2,3入…

Description There is a famous railway station in PopPush City. Country there is incredibly hilly. The station was built in last century. Unfortunately, funds were extremely limited that time. It was possible to establish only a surface track. Moreove…

题目链接:http://poj.org/problem?id=1363 #include <stdio.h> #include <stack> using namespace std; ]; ///出栈秩序 int main() { int t; ///有多少车厢 while(scanf("%d",&t),t) { stack<int>s; ]),ans[]) { ;i<t;i++) scanf("%d",&…

题目地址: http://poj.org/problem?id=1363 此题只需验证是否为合法的出栈序列. 有两个思路: 1.每个已出栈之后的数且小于此数的数都必须按降序排列.复杂度O(n^2),适合人脑. //思路 1 不对!!! 例如 数据 ,               3 5 2 4 1              --------                正确答案为 no //貌似这个数据确实是no,当时想错了,后面的判断完不能标记为出栈, 但是修改了下代码还是没过... 附上修…

Description There is a famous railway station in PopPush City. Country there is incredibly hilly. The station was built in last century. Unfortunately, funds were extremely limited that time. It was possible to establish only a surface track. Moreove…

P.S.: 输出换行 三个方法 1.直接按照要求做 根据给的数,需要push,pop哪些数据,具有唯一性 数最多进栈一次,出栈一次 O(n) Source Code Problem: User: congmingyige Memory: 728K Time: 63MS Language: G++ Result: Accepted Source Code #include <cstdio> #include <cstdlib> #include <cmath> #incl…

POJ题目分类 | POJ题目分类 | HDU题目分类 | ZOJ题目分类 | SOJ题目分类 | HOJ题目分类 | FOJ题目分类 | 模拟题: POJ1006 POJ1008 POJ1013 POJ1016 POJ1017 POJ1169 POJ1298 POJ1326 POJ1350 POJ1363 POJ1676 POJ1786 POJ1791 POJ1835 POJ1970 POJ2317 POJ2325 POJ2390 POJ1012 POJ1082 POJ1099 POJ1114…

poj1363,这道题是数据结构与算法中的经典问题,给定一组进栈顺序,问栈有多少种出去的顺序. #include<stdio.h> #include <stack> #include <iostream> #include <cstring> using namespace std; int main() { // freopen("in.txt","r",stdin); int n; while(scanf(&quo…