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elements from the underlying collection, which is not possible for enumeration.What's the difference between 14,hashset and TreeSet?HashSet is implemented by a hash table, so its elements are unordered. The time complexity of the add (), remove (), contains () method is O (1).On the other hand, TreeSet is implemented by a tree-shaped structure in which the elements are ordered. Therefore, the time complexity of the add (), remove (), contains () method is O (Logn).What will 15,system.gc () and
data structure exercises--huffman Coding
time limit (normal/java): 1000ms/10000ms Run memory limit: 65536KByte
Description
Previously, when there was no phone, the main means of fast long-distance communication was the Telegraph, which converted the text needed to be transferred into a string of binary characters. For example, suppose that the message to be t
2017-2018-2 1723 "Java Programming" course
Pairing programming exercises-arithmetic-preparation phase
After a person struggles for nearly half a semester, finally ushered in our first team collaboration coding, that is, our first pair of programming exercises-arithmetic. Obviously, he is th
Development
Development
800
Analysis
Demand analysis (including learning new technologies)
100
Coding Standard
Code specification (to develop appropriate specifications for current development)
30
Design UML
Design Project UML class diagram
50
Coding
the code is tired of the relay. The downside might be that you're not demanding enough when you write your code, and sometimes there are some typos. On the whole, with Steven Uptown children's shoes knot pair learning is very happy, hope in the next pair of programming projects to build up and progress together!!PSP Time Statistics
PSP2.1
Personal software Process Stages
Estimated time-consuming (minutes)
actual time elapsed (minutes)
are also used as the denominator of 1 of the score to be calculated, and then converted.
Good friends of pairing programming
20172323 Wang Yuhan: infix turn suffix
20172314 Fang: Calculation of suffix expressions
20172305 Tan Xin: The output of infix expression
Team ExperienceIn our team, I am responsible for writing requirements analysis and design ideas, Tan Xin is responsible for making UML class diagram, Wang Yuhan is responsible for making PSP map and determine c
Personal software Process Stages
Estimated time-consuming (hours)
actual time elapsed (hours)
Planning
Plan
1
5/6
Estimate
Estimate how long this task will take
0.5
Development
Development
16
Analysis
Demand analysis (including learning new technologies)
4
Coding Standard
Code specification (t
2017-2018-20172309 "Java Programming" course pair programming Exercises _ arithmeticTeam member: ShanshaStudy No.: 20172310Blog Address: Click here1. Demand Analysis:
can generate the topic:-Enter the number of topics you want to generate and output a set of topics at random levels.-Operator stochastic equal probabilities (subtraction), arithmetic random probabilities (integers, true fractions).
-consuming (minutes)
Planning
Plan
60
Estimate
Estimate how long this task will take
3
Development
Development 2000
3000
Analysis
Demand analysis (including learning new technologies)
350
Coding Standard
Code specification (to develop appropriate specifications for current development)
60
Design UML
Design P
Estimate
Estimate how long this task will take
100
100
Development
Development
800
Analysis
Demand analysis (including learning new technologies)
100
Coding Standard
Code specification (to develop appropriate specifications for current development)
30
Design UML
Design Project UML clas
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