1145 Hashing - Average Search Time (25 分) The task of this problem is simple: insert a sequence of distinct positive integers into a hash table first. Then try to find another sequence of integer keys from the table and output the average search ti
1056 Mice and Rice (25 分) Mice and Rice is the name of a programming contest in which each programmer must write a piece of code to control the movements of a mouse in a given map. The goal of each mouse is to eat as much rice as possible in order
1043 Is It a Binary Search Tree (25 分) A Binary Search Tree (BST) is recursively defined as a binary tree which has the following properties: The left subtree of a node contains only nodes with keys less than the node's key. The right subtree of a
一.先谈几个重要的东西 virtual memory是一个抽象概念,书上的原文是"an abstraction of main memory known as virtual memory"(参考资料p776).那么什么是抽象概念.下面说说我个人对这个东西的理解. 所谓抽象概念是指抽象出来的概念,通过抽象这个动作得到的结果.那么抽象这个动作又是什么,即是怎么一个动作,思维做了什么动作或者做了一系列什么动作.举个生活中的例子,现在有排球.足球.篮球.乒乓球,我们按照某个方向(共性)对排球