11.1 Binary Search Trees 1.Definition: A binary search tree is a binary tree that may be empty. nonempty binary search tree satisfies the following properties: 1)Every element has a key and no two elements have the same key: therefore,all keys are distinct

9.1 Introduction A priority queue is a collection of zero or more elements. Each element has a priority or value

Information content of a random variable Random variable x Outcome of a random experiment Discrete R V takes on values from a finite set of possible outcomes PMF: P(X=y)=Py) How much information is contained in the event X=y? Will the sun rise today Revealing the outcome of this experiment provides no information Will the Celtics win the NBa championship? Since this is unlikely, revealing yes provides more information than revealing Events that are less likely contain more information than likely events

6.1 Definition Definition: A queue is a linear list in which additions and deletions take place at different ends. It is also called a first-in-first-out list. The end at which new elements are added is called the rear. The end from which old elements are deleted is called the front

5.1 definition of stack Definition A stack is a linear list in which insertions and deletions take place at the same end. This end is called the top. The other end of the list is called the bottom. It is also called a LIFO(last-in-first-out) list

At the beginning of the 20th century diabetic women suffered from- infetility, and the rare women achieving pregnancy faced a poor prognosis. Maternal death'was a real threat,and perinatal survival a more 40 percent

1. Hemoglobin is a multisubunit allosteric rotein that carries 02 in erythrocyte. 1.1 Hemoglobin is a well-studied and well-understood protein. 1.1.1 It was one of the first proteins to have its molecular mass accurately determined. 1.1.2 The first protein to be characterized by ultracentrifuge. 1.1.3 The first protein to be associated with a specific physiological function

1. The nucleic acids, deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), are polymers of nucleotide units 1.1 DNA consists of four kinds of deoxyribonucleotide units linked together through covalent bonds 1.1.1 Each nucleotide unit is made of a nitrogenous base (the various part in the four different deoxyribonucleotides), a pentose sugar and a phosphate group

第1章数据库原理及基本概念 1.填空题 (1)数据及数据之间的联系 (2) DBMS (3)数据库 (4)记录 (5)概念设计、逻辑设计 2.选择题 (1)A(2)A、C、D(3)A

1． 日本电影 a. 黑泽明征服世界 b. 菊与刀 2． 商业电影怎么走：从印度到韩国 a.“宝莱坞”的兴衰史 b.韩国电影的法宝 3． 伊朗和越南电影 a. 伊朗 b. 越南