Programming Data Structure And Algorithms Using Python | Week 5

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Session: JULY-DEC 2023

Course Name: Programming Data Structure And Algorithms Using Python

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These are Programming Data Structure And Algorithms Assignment 5 Answers

Programming Data Structure And Algorithms Using Python Programming Assignment Question

Question 1
The academic office at the Hogwarts School of Witchcraft and Wizardry has compiled data about students’ grades. The data is provided as text from standard input in three parts: information about courses, information about students and information about grades. Each part has a specific line format, described below.

Information about courses
Line format: Course Code~Course Name~Semester~Year~Instructor
Information about students
Line format: Roll Number~Full Name
Information about grades
Line format: Course Code~Semester~Year~Roll Number~Grade
The possible grades are A, AB, B, BC, C, CD, D with corresponding grade points 10, 9, 8, 7, 6, 5 and 4. The grade point average of a student is the sum of his/her grade points divided by the number of courses. For instance, if a student has taken two courses with grades A and C, the grade point average is 8.50 = (10+7)÷2. If a student has not completed any courses, the grade point average is defined to be 0.

You may assume that the data is internally consistent. For every grade, there is a corresponding course code and roll number in the input data.
Each section of the input starts with a line containing a single keyword. The first section begins with a line containing Courses. The second section begins with a line containing Students. The third section begins with a line containing Grades. The end of the input is marked by a line containing EndOfInput.
Write a Python program to read the data as described above and print out a line listing the grade point average for each student in the following format:

Roll Number~Full Name~Grade Point Average

Your output should be sorted by Roll Number. The grade point average should be rounded off to 2 digits after the decimal point. Use the built-in function round().

Answer:

def Gvalue(code1):
        if code1=="A":
                return(10)
        if code1=="AB":
                return(9)
        if code1=="B":
                return(8)
        if code1=="BC":
                return(7)
        if code1=="C":
                return(6)
        if code1=="CD":
                return(5)
        if code1=="D":
                return(4)
        
# varibles used for storing data

ROLL_GRADEsum={}
Roll_course_count={}
Roll_name={}

#COURSES INPUT SECTION

type_course=input()
enter_course_detail=input()
next_input=input()
while(next_input!="Students"):
        next_input=input()

#STUDENT INPUT SECTION
        
#if it fails in courses section then 
#it will automatically enter students
#contact us 
        
roll,name=input().split('~')
Roll_name[roll]=name
ROLL_GRADEsum[roll]=0
Roll_course_count[roll]=0
next_input=input()
while('~' in next_input):
    roll,name=next_input.split('~')
    Roll_name[roll]=name
    ROLL_GRADEsum[roll]=0
    Roll_course_count[roll]=0
    next_input=input()

#GRADES INPUT SECTION

code,sem,year,Rnum,grade=input().split('~')
if Rnum in ROLL_GRADEsum.keys():
    ROLL_GRADEsum[Rnum]=ROLL_GRADEsum[Rnum]+Gvalue(grade)
    Roll_course_count[Rnum]=Roll_course_count[Rnum]+1
next_input=input()
while(next_input!="EndOfInput"):
    code,sem,year,Rnum,grade=next_input.split('~')
    if Rnum in ROLL_GRADEsum.keys():
        ROLL_GRADEsum[Rnum]=ROLL_GRADEsum[Rnum]+Gvalue(grade)
        Roll_course_count[Rnum]=Roll_course_count[Rnum]+1
    next_input=input()
    
#print(Roll_course_count)
#print(ROLL_GRADEsum)
#print(Roll_name)

#RESULT COMPUTATION
    
Sort_roll=sorted(Roll_name)
for key in Sort_roll:
    if ROLL_GRADEsum[key]!=0:
        ans=round((ROLL_GRADEsum[key]/Roll_course_count[key]),2)
        print(key+"~"+Roll_name[key]+"~"+str(ans))
    else:
        print(key+"~"+Roll_name[key]+"~"+"0")

These are Programming Data Structure And Algorithms Assignment 5 Answers

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These are Programming Data Structure And Algorithms Assignment 5 Answers

Programming Assignment

The library at the Hogwarts School of Witchcraft and Wizardry has computerized its book issuing process. The relevant information is provided as text from standard input in three parts: information about books, information about borrowers and information about checkouts. Each part has a specific line format, described below.

  1. Information about books
    Line format: Accession Number~Title
  2. Information about borrowers
    Line format: Username~Full Name
  3. Information about checkouts
    Line format: Username~Accession Number~Due Date
    Note: Due Date is in YYYY-MM-DD format.

These are Programming Data Structure And Algorithms Assignment 5 Answers

You may assume that the data is internally consistent. For every checkout, there is a corresponding username and accession number in the input data, and no book is simultaneously checked out by two people.

These are Programming Data Structure And Algorithms Assignment 5 Answers

Each section of the input starts with a line containing a single keyword. The first section begins with a line containing Books. The second section begins with a line containing Borrowers. The third section begins with a line containing Checkouts. The end of the input is marked by a line containing EndOfInput.

Write a Python program to read the data as described above and print out details about books that have been checked out. Each line should describe to one currently issued book in the following format:

Due Date~Full Name~Accession Number~Title

These are Programming Data Structure And Algorithms Assignment 5 Answers

Your output should be sorted in increasing order of due date. For books due on the same date, sort in increasing order of full name.
Here is a sample input and its corresponding output.

Solution:

books = dict()
# Dictionary to map username to fullname
borrowers = dict()
# List to store checkout data: accumulate, sort and print
checkouts = []

# Find the start of Books data
nextline = input().strip()
while nextline.find("Books") < 0:
    nextline = input().strip()

# Read upto start of Borrowers data
# Skip the line with "Books"
nextline = input().strip()
while nextline.find("Borrowers") < 0:
    (accession_number,title) = nextline.split('~')
    books[accession_number] = title
    nextline = input().strip()

# Read upto Checkout data
# Skip the line with "Borrowers"
nextline = input().strip()
while nextline.find("Checkouts") < 0:
    (username,fullname) = nextline.split('~')
    borrowers[username] = fullname
    nextline = input().strip()

# Process Checkouts
# Skip the line with "Checkouts"
nextline = input().strip()
while nextline.find("EndOfInput") < 0:
    (username,accession_number,due_date) = nextline.split('~')
    checkoutline = due_date+"~"+borrowers[username]+"~" + accession_number+"~"+ books[accession_number]
    checkouts.append(checkoutline)
    nextline = input().strip()

# Print the output from checkouts
for i in sorted(checkouts):
    print(i)

These are Programming Data Structure And Algorithms Assignment 5 Answers

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Question 1
Here are some basic facts about tennis scoring : A tennis match is made up of sets. A set is made up of games.
To win a set, a player has to win 6 games with a difference of 2 games. At 6-6, there is often a special tie-breaker. In some cases, players go on playing till one of them wins the set with a difference of two games.

These are Programming Data Structure And Algorithms Assignment 5 Answers

Tennis matches can be either 3 sets or 5 sets. The player who wins a majority of sets wins the match (i.e., 2 out 3 sets or 3 out of 5 sets) The score of a match lists out the games in each set, with the overall winner’s score reported first for each set. Thus, if the score is 6-3, 5-7, 7-6 it means that the first player won the first set by 6 games to 3, lost the second one 5 games to 7 and won the third one 7 games to 6 (and hence won the overall match as well by 2 sets to 1).

These are Programming Data Structure And Algorithms Assignment 5 Answers

You will read input from the keyboard (standard input) containing the results of several tennis matches. Each match’s score is recorded on a separate line with the following format :
Winner : Loser : Set-1-score,…, Set-k-score, where 2 s<=ks<=5
For example, an input line of the form
Osaka : Barty : 3-6,6-3,6-3
indicates that Osaka beat Barty 3-6, 6-3, 6-3 in a best of 3 set match.

These are Programming Data Structure And Algorithms Assignment 5 Answers

The input is terminated by a blank line.
You have to write a Python program that reads information about all the matches and compile the following statistics for each player :
1. Number of best-of-5 set matches won
2. Number of best-of-3 set matches won
3. Number of sets won
4. Number of games won
5. Number of sets lost
6. Number of games lost

These are Programming Data Structure And Algorithms Assignment 5 Answers

You should print out to the screen (standard output) a summary in decreasing order of ranking, where the ranking is according to the criteria 1-6 in that order (compare item 1, if equal compare item 2, if equal compare item 3 etc, noting that for items 5 and 6 the comparison is reversed).
For instance, given the following data

These are Programming Data Structure And Algorithms Assignment 5 Answers

Zverev : Medvedev : 2-6, 6-7,7-6,6-3,6-1
Barty : Osaka : 6-4,6-4
Medvedev : Zverev : 6-3,6-3
Osaka : Barty : 1-6,7-5,6-2
Zverev : Medvedev : 6-0,7-6, 6-3
Osaka : Barty : 2-6,6-2,6-0
Medvedev : Zverev : 6-3,4-6,6-3,6-4
Barty : Osaka : 6-1,3-6,7-5
Zverev : Medvedev : 7-6,4-6, 7-6,2-6, 6-2
Osaka : Barty : 6-4,1-6, 6-3
Medvedev : Zverev : 7-5,7-5
Osaka : Barty : 3-6,6-3,6-3
your program should print out the following
Zverev 3 0 10 104 11 186
Medvedev 1 2 11 106 10 104
Osaka 0 4 9 76 8 74
Barty 0 2 8 74 9 76

Solution:

//Code

These are Programming Data Structure And Algorithms Assignment 5 Answers

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