The only printer in the computer science students' union is experiencing an extremely heavy workload. Sometimes there are a hundred jobs in the printer queue and you may have to wait for hours to get a single page of output. Because some jobs are mor…
题目很简单,给一个队列以及文件的位置,然后一个一个检查,如果第一个是优先级最高的就打印,否则放到队列后面,求所要打印的文件打印需要花费多长时间. 这里我用数组模拟队列实现,考虑到最糟糕的情况,必须把数组开到maxn*maxn.另外当所要打印的文件优先级不是最高的时候也需要排列到后面. 0.016s. 代码: #include <cstdio> const int maxn = 101; int t, n, m, time; int q[maxn*maxn]; int print() { int…
The only printer in the computer science students' union is experiencing an extremely heavy workload. Sometimes there are a hundred jobs in the printer queue and you may have to wait for hours to get a single page of output. Because some jobs are mor…
12100 Printer Queue12 The only printer in the computer science students’ union is experiencing an extremely heavy workload. Sometimes there are a hundred jobs in the printer queue and you may have to wait for hours to get a single page of output. Bec…
Team Queue Descriptions: Queues and Priority Queues are data structures which are known to most computer scientists. The Team Queue, however, is not so well known, though it occurs often in everyday life. At lunch time the queue in front of the Mensa…
挺水的模拟题,刚开始题目看错了,poj竟然过了...无奈.uva果断wa了 搞清题目意思后改了一下,过了uva. 题目要求模拟木块移动: 有n(0<n<25)快block,有5种操作: move a onto b 在将a搬到b上之前,先把a和b上的积木放回原來的位置 move a over b在将a搬到b所在的那堆积木上前,先把a上的积木放回原來的位罝 pile a onto b 将包括a本身和上方的积木一起放到b上,在放之前b上方的积木放回原来的位置 pile a over b 将包括a本…
https://stackoverflow.com/questions/717148/queue-queue-vs-collections-deque/717199#717199 Queue,Queue 用于多线程之间,无需lock的通信: collections.deque 用于实现数据结构中的queue, 或两端都可以实现queue的功能. Queue.Queue and collections.deque serve different purposes. Queue.Queue is i…
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=4841 圆桌问题 Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 65535/32768 K (Java/Others) Total Submission(s): 104 Accepted Submission(s): 17 Problem Description 圆桌上围坐着2n个人.当中n个人是好人.另外n个人是坏人.假设从第一…
剑指Offer9--使用双栈模拟队列 队列Queue是具有FIFO(First in First out)特性的数据结构,栈Stack是具有LIFO(后进先出)特性的数据结构.下面提供一种思路使用双栈来模拟队列. 1. 思路--为何需要用两个栈? 很显然一个普通的栈是无法替代队列的,这是因为先进栈的元素总是后出栈. 如果输入序列是123(假设push和pop不交替进行),输出序列仅为321,与队列恰好是反过来的.那么,我们产生了一个思路,就像是"负负得正"一样,如果增加一个栈来接收上一…
队列:先进先出,后进后出 var Queue = (function(){ var item = new WeakMap(); class Queue{ constructor(){ item.set(this,[]); } enqueue(ele,priority){ var ls = item.get(this); var obj = { ele:ele, pro:priority }; var add = false; for(var i = 0; i < ls.length; i++ )…
伸展树是一种强大的数据结构,由于其特性,可以很好地模拟队列的插队等操作,而线段树解决这类问题通常需要转化一下,比较伤脑筋 而用伸展树的解决方法就是先建好一颗节点数等于队列长度的树,每个队列元素在队列中的排名就是这个元素在伸展树中的结点号 那么询问 i 在队列中的排名:splay(i,0), rank=size[ch[root][0]]+1; 询问队列中第 i 个元素是什么:在伸展树中找到第i个元素,其节点号就是答案 hdu1890:有两种操作:模拟队列:把结点i移到队列最前面(删除根结点+移点操…