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PRIP File Solutions

9

PRIP 1 Sumita Arora Solutions | Class 12 Computer Science
PRIP 2 Sumita Arora Solutions | Class 12 Computer Science
PRIP 3 Sumita Arora Solutions | Class 12 Computer Science
PRIP 4 Sumita Arora Solutions | Class 12 Computer Science
PRIP 5 Sumita Arora Solutions | Class 12 Computer Science
PRIP 6 Sumita Arora Solutions | Class 12 Computer Science
PRIP 8 Sumita Arora Solutions | Class 12 Computer Science
PRIP 9 Sumita Arora Solutions | Class 12 Computer Science
PRIP 10 Sumita Arora Solutions | Class 12 Computer Science

Practical Report File

16

Program 1: Report File
Program 2: Read a file line by line and print it
Program 3: Remove all the lines that contain the character `a’ in a file and write it to another file
Program 4: Write a random number generator that generates random numbers between 1 and 6 (simulates a dice)
Program 5: Write an iterative code to find the sum of all elements of a list
Program 6: Write a recursive code to compute the nth Fibonacci number
Program 7: Write a Python program to implement a stack and queue using a list data-structure
Program 8: Write a recursive Python program to test if a string is a palindrome or not
Program 9: Write a Python program to plot the function y = x2 using the pyplot or matplotlib libraries
Program 10: Create a graphical application that accepts user inputs, performs some operation on them, and then writes the output on the screen. For example, write a small calculator. Use the tkinter library
Program 11: Open a webpage using the urllib library
Program 12: Compute EMIs for a loan using the numpy or scipy libraries
Program 13: Take a sample of 10 phishing e-mails and find the most common words
Program 16: Find the min, max, sum, and average of the marks in a student marks table
Program 17: Find the total number of customers from each country in the table (customer ID, customer name, country) using group by
Program 18: Write a SQL query to order the (student ID, marks) table in descending order of the marks

Chapter 1

13

[Type A] Chapter– 1 Class 12 CS – Sumita Arora Assignment | Q/A
[Type B] Chapter– 1 Class 12 CS – Sumita Arora Assignment | Q/A
[Type C]Q1. Write a program to print one of the words negative, zero, or positive, according to whether variable x is less than zero, is zero, or greater than zero respectively.
[Type C]Q2. Write a program that returns True if the input number is an even number, False otherwise.
[Type C]Q3. Write a python program that calculates and prints the number of seconds in a year.
[Type C]Q4. Write a Python program that accepts two integers from the user and prints a message saying if the first number is divisible by the second number or it is not.
[Type C]Q5. Write a program that asks the user the day number in a year in the range 2 to 365 and asks the first day of year-Sunday or Monday or Tuesday etc. Then the program should display the day on the day-number that has been input.
[Type C]Q6. One foot equals 12 inches. Write a function that accepts a length written in feet as an argument and returns this length written in inches. Write a second function that asks the user for a number of feet and returns this value. Write a third function that accepts a number of inches and displays this to the screen. Use these three functions to write a program that asks the user for a number of feet and tells them the corresponding number of inches.
[Type C]Q7. Write a program that reads an integer N from the keyboard, computes it, and displays the sum of the numbers from N to(2N) if N is non-negative. If N is a negative number, then it’s the sum of numbers from(2N) to N. The starting and ending points are included in the sum.
[Type C]Q8. Write a program that reads a date as an integer in the format MMDDYY. The program will call a function that prints out the date in the format: 25 December 2019.
[Type C]Q9. Write a program that prints tables on two columns-table that helps to convert miles into kilometer.
[Type C]Q10. Write another program printing a table with two columns that help convert pounds in kilograms.
[Type C]Q11. Write a program that reads two times, in military format(0900,1730), and prints the number of hours and minutes between the two times. eg: First time: 0900 Second time: 1730, 8 hours 30 minutes

Chapter 2

14

[Type A] Chapter – 2 Class 12 CS – Sumita Arora Assignment | Q/A
[Type B] Chapter – 2 Class 12 CS – Sumita Arora Assignment | Q/A
[Type C]Q1. Write a program that prompts for a phone number of 10 digits and two dashes, with dashes after the area code and the next three numbers. For e.g] 017-555-1212 is a legal input. Display if the phone number entered is a valid format or not and display if the phone number is valid or not. (i.e contains just the digits and dash at specific places)
[Type C]Q2. Write a program that takes any two lists L and M of the same size and adds their elements together to form a new list N whose elements are sums of the corresponding elements in L and M. For instance, if L =[3,1,4] and M=[1,5,9] then N should equal[4,6,13].
[Type C]Q3. Write a program that should prompt the user to type some sentence(s) followed by “enter”. It should then print the original sentences and the following statistics relating to the sentences.
[Type C]Q4. Write a program that rotates the elements of a list so that the element at the first index moves to the second index, the element in the second index moves to the third index, etc, and the element in the last index moves to the first index.
[Type C]Q5. Write a short python code segment that prints the longest word in the list of words.
[Type C]Q6. Write a program that creates a list of all integers less than 100 that are multiple of 3 or 5.
[Type C]Q7. Define two variables first and second such that first=’Jimmy’ and second =’Johnny’. Write a short Python code segment that swaps the values assigned to these two variables and prints the results.
[Type C]Q8. Write a python program that creates a tuple storing first 9 terms of the Fibonacci series.
[Type C]Q9. Create a dictionary whose keys are month names and whose values are the number of days in the corresponding months.
[Type C]Q10. Write a function called addDict(dict1, dict2) which computes the union of two dictionaries. It should return a new dictionary, with all the items in both its arguments. If the same key appears in both arguments, feel free to pick a value from another.
[Type C]Q11. Write a program to sort a dictionary’s keys using bubble sort and produce the sorted keys as a list.
[Type C]Q12. Write a program to sort a dictionary’s values using Bubble sort and produce the sorted values as a list.

Chapter 3

11

[Type A] Chapter – 3 Class 12 CS – Sumita Arora Assignment | Q/A
[Type B] Chapter– 3 Class 12 CS – Sumita Arora Assignment | Q/A
[Type C]Q1. Write a function that takes the amount in dollars and converts it to rupees. Create a function in the void as well as a non-void form.
[Type C]Q2. Write a function to calculate the volume of a box with appropriate default values for its parameters. Your function should have the following input parameters: 1] Length of box 2] Width of box 3] Height of box
[Type C]Q3. Write a program to have the following functions: 1) A function that takes a number as argument and calculates cube for it. The function does not return a value. If there is no function in the function call, the function should calculate the cube of 2. 2) A function takes two char arguments and returns True if both arguments are equal otherwise False
[Type C]Q4. Write a function that receives two numbers and generates a random number from that range. Using this function, the main program should be able to print three numbers randomly.
[Type C]Q5. Write a function that receives two string arguments and checks if they are of the same length.
[Type C]Q6. Write a function named zzfhRoot() that receives two parameters x and n and returns nth root. e.g] x**(1/n) The default value of n is 2
[Type C]Q7. Write a function that takes a number n and then returns a randomly generated number having exactly n digits(not starting with zero) e.g] If n is 2 then the function can randomly return 10-99 but 07,02 are not valid two-digit numbers.
[Type C]Q8. Write a function that takes two numbers and returns the number that has a minimum of 1 digit. For example: If the number passed is 491 and 278, then the function will return 491 because it has got a minimum one’s digit out of two given numbers.
[Type C]Q9. Write a program that generates a series using a function that takes the first and last value of the series and then generates four terms that are equidistant. e.g] If two numbers passed are 1 and 7 then the function returns 1357

Chapter 4

5

[Type A] Chapter – 4 Class 12 CS – Sumita Arora Assignment | Q/A
[Type B] Chapter– 4 Class 12 CS – Sumita Arora Assignment | Q/A
[Type C]Q1. Create a module lengthconversion.py that stores function for various lengths conversion.
[Type C]Q2. Create a module MassConversion.py that stores a function for mass conversion.
[Type C]Q3. Create a package of the previous two modules.

Chapter 5

10

[Type A] Chapter– 5 Class 12 CS – Sumita Arora Assignment | Q/A
[Type B] Unit – 5 Class 12 CS – Sumita Arora Assignment | Q/A
[Type C]Q2. A file sports_data contains information in the following format: Event – Participant. Write a function that would read contents from sports_data and create a file named Athletic_data copying only those records from sports_data where the event is named as Athletics.
[Type C]Q3. A file contains a list of telephone numbers in the following form: The Name contains only one word and the name and telephone numbers are separated by white space. Write a program Display its content in two columns.
[Type C]Q4. Write a program to count the words “to” and “the” present in a text file “Poem.text”
[Type C]Q5. Write a program to count the number of upper-case alphabets present in text file Article.txt
[Type C]Q6. Write a program that copies one file to another. Have the program read the file name from the user.
[Type C]Q7. Write a Program that appends the contents of one file to another. Have the program take the filenames from the user.
[Type C]Q8. Write a program that reads characters from the keyboard one by one. All lower case characters get stored inside the file LOWER, all upper case characters get stored inside the file UPPER and all other characters get stored inside others.
[Type C]Q9. Write a function in python to count and display the number of lines starting with alphabet “A” present in a text file, “LINES.txt” The file LINES.txt contains:

Chapter 6

7

[Type A] Chapter– 6 Class 12 CS – Sumita Arora Assignment | Q/A
[Type B] Chapter– 6 Class 12 CS – Sumita Arora Assignment | Q/A
[Type C]Q1. Write a function using recursion technique.
[Type C]Q2: Implement a function product() to multiply 2 numbers recursively using + and – operators only.
[Type C]Q3: Write a function for the hailstone sequence as directed.
[Type C]Q4: Write a python program to find if a number is a happy number or not, using recursion.
[Type C]Q5: Write a binary search function as mentioned in the problem statement using the recursion technique.

Chapter 7

2

[Type A] Chapter – 7 Class 12 CS – Sumita Arora Assignment | Q/A
[Type B] Chapter– 7 Class 12 CS – Sumita Arora Assignment | Q/A

Chapter 8

4

[Type A] Chapter– 8 Class 12 CS – Sumita Arora Assignment | Q/A
[Type B] Chapter– 8 Class 12 CS – Sumita Arora Assignment | Q/A
[Type C]Q1: Consider the data given below and plot the required solutions.
[Type C]Q2: Consider the data given below and plot the required solutions.

Chapter 9

7

[Type A] Chapter – 9 Class 12 CS – Sumita Arora Assignment | Q/A
[Type B] Chapter – 9 Class 12 CS – Sumita Arora Assignment | Q/A
[Type C]Q1. Write a python program directed for the Linear Lists in the problem statement.
[Type C]Q2. Write a python program directed for the Linear Lists in the problem statement.
[Type C]Q3. Write a python program directed for the Linear Lists in the problem statement.
[Type C]Q4. Write a python program directed for the Linear Lists in the problem statement.
[Type C]Q5. Write a python program directed for the Linear Lists in the problem statement.

Chapter 10

10

[Type A] Chapter – 10 Class 12 CS – Sumita Arora Assignment | Q/A
[Type B] Chapter – 10 Class 12 CS – Sumita Arora Assignment | Q/A
[Type C]Q1. Write a program to push or pop an element from stack depending upon the user’s choice.
[Type C]Q2. A line of text is read from the input terminal into the stack. Write a program to output the string in reverse order, each character appearing twice.
[Type C]Q3. Write a python program that pushes or pops an element in the stack. The elements are shifted towards the right so that the top always remains at the 0th index.
[Type C]Q4. Write a python program to insert or delete an element from a queue depending upon the user’s choice.
[Type C]Q5. Write a program to insert or delete an element from a queue depending upon the user’s choice.
[Type C]Q6. Write a Python Program to implement input-restricted dequeue taking into consideration both insertion and deletion operations.
[Type C]Q7. Write a python program to implement the following operations in the stack.
[Type C]Q8. Write a python program that implements three queues namely HighestPr, NormalPr, and LowestPr.

Chapter 11

1

Chapter – 11 Class 12 CS – Sumita Arora Assignment | Q/A

Chapter 12

2

[Type A] Chapter 12 – Sumita Arora Solutions | Class 12 CS/IP
[Type B] Chapter 12 – Sumita Arora Solutions | Class 12 CS/IP

Chapter 13

1

Chapter 13 Sumita Arora Solutions | Class 12 Computer Science

Chapter 14

2

[Type A] Chapter – 14 Class 12 CS – Sumita Arora Assignment | Q/A
[Type B] Chapter 14 Sumita Arora Solutions | Class 12 Computer Science

Chapter 15

3

[Type A] Chapter 15 Sumita Arora Solutions | Class 12 Computer Science
[Type B] Chapter 15 Sumita Arora Solutions | Class 12 Computer Science
[Type C] Chapter 15 Sumita Arora Solutions | Class 12 Computer Science

Chapter 16

4

[Type A] Chapter 16 Sumita Arora Solutions | Class 12 Computer Science
[Type B] Chapter 16 | Python application that fetches all the records from Pet table of Menagerie Database
[Type B] Chapter 16 | Python application that fetches only those records from Event table of Menagerie database where type is Kennel.
[Type B] Chapter 16 | Python application to obtain a search criteria from user and then fetch records based on that from empl table.(given in chapter 13)

Chapter 17

1

Chapter 17 Sumita Arora Solutions | Class 12 Computer Science

Important Questions

1

Problem 1: Write a python code that prints the longest word in the list of words?

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Chapter 6

[Type C]Q4: Write a python program to find if a number is a happy number or not, using recursion.

What is Recursion Function?

A recursive function is a function defined in terms of itself via self-referential expressions.

This means that the function will continue to call itself and repeat its behavior until some condition is met.

Problem: A happy number is a number in which the eventual sum of the square of the digits of the number is equal to 1. Write a Recursion function to check is the given number is a happy number or not.

Program Code:

Output:

It is not a happy number
It is a Happy Number

The above code demonstrates recursion in python.

To view all the lessons in chapter 6: http://computertutor.in/class-12-computer-science/chapter-6/

To view entire class 12 computer science study material: http://computertutor.in/resources/

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Updated on May 2, 2020

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