1017 Queueing at Bank (25 分)   Suppose a bank has K windows open for service. There is a yellow line in front of the windows which devides the waiting area into two parts. All the customers have to wait in line behind the yellow line, until it is his…

PAT甲级1017. Queueing at Bank 题意: 假设一家银行有K台开放服务.窗前有一条黄线,将等候区分为两部分.所有的客户都必须在黄线后面排队,直到他/她轮到服务,并有一个可用的窗口. 假设一个客户不能占用1个小时以上的窗口. 现在考虑到每个客户的到达时间T和处理时间P,您应该告诉所有客户的平均等待时间. 输入: 每个输入文件包含一个测试用例.对于每种情况, 第一行包含2个数字:N(<= 10000) - 客户总数,K(<= 100) - 窗口数.然后N行跟随,每个包含2次:H…

题意: 输入两个正整数N,K(N<=10000,k<=100)分别表示用户的数量以及银行柜台的数量,接下来N行输入一个字符串(格式为HH:MM:SS)和一个正整数,分别表示一位用户到达银行的时间以及该用户占用银行资源的时间,求用户的平均等待时间.(当一位用户早于早晨八点到达银行不开门,他需要等待,当一位用户晚于下午五点到达银行关门,该用户不计入等待时间计算)[答案保留一位小数] AAAAAccepted code: #include<bits/stdc++.h> using nam…

https://pintia.cn/problem-sets/994805342720868352/problems/994805491530579968 Suppose a bank has K windows open for service. There is a yellow line in front of the windows which devides the waiting area into two parts. All the customers have to wait…

Suppose a bank has K windows open for service. There is a yellow line in front of the windows which devides the waiting area into two parts. All the customers have to wait in line behind the yellow line, until it is his/her turn to be served and ther…

1040 Longest Symmetric String (25 分)   Given a string, you are supposed to output the length of the longest symmetric sub-string. For example, given Is PAT&TAP symmetric?, the longest symmetric sub-string is s PAT&TAP s, hence you must output 11.…

1083 List Grades (25 分) Given a list of N student records with name, ID and grade. You are supposed to sort the records with respect to the grade in non-increasing order, and output those student records of which the grades are in a given interval. I…

1130 Infix Expression (25 分)(找规律.中序遍历) 我是先在CSDN上面发表的这篇文章https://blog.csdn.net/weixin_44385565/article/details/89035813 Given a syntax tree (binary), you are supposed to output the corresponding infix expression, with parentheses reflecting the preced…

1074 Reversing Linked List (25 分)   Given a constant K and a singly linked list L, you are supposed to reverse the links of every K elements on L. For example, given L being 1→2→3→4→5→6, if K=3, then you must output 3→2→1→6→5→4; if K=4, you must outp…

1086 Tree Traversals Again (25分)   An inorder binary tree traversal can be implemented in a non-recursive way with a stack. For example, suppose that when a 6-node binary tree (with the keys numbered from 1 to 6) is traversed, the stack operations ar…