Programming & Computer Science Answers

Write the function sum() with four parameters the calculates the arguments provided and returns their sum

Parameters four variables of type float

Returns the sum of type float

Use the default argument 4 to declare the last two parameter of the function sum() test the function sum() by calling it by three possible methods use random integers as arguments

A finger-print machine is kept in a school. All the students are required to record their finger-print on their arrival . Expected arrival time is common to all the students. For every one minute of late arrival, 50 paise is charged as fine. For example, if the arrival time of student is 9:03:10 and expected time is 9:00:00 then fine is Rs. 2. Given the details of students, their arrival time on a particular day and the expected arrival time, design an OOP model and write a C++ code to print the rollno and the name of the students who came earlier than the arrival time and calculate fine amount. Understand the precode and application program to do the implementation.

Input Format

Number of students

Roll no of Student1

Name of Student1

Arrival time of Student1

Roll no of Student2

Name of Student2

Arrival time of Student2

...

Roll no of Student-n

Name of Student-n

Arrival time of Student-n

All time is given in hours followed by minutes followed by seconds

(Perform Operator Overloading of << and >> operators)

Consider a situation that a user wants to print first n (any value, e.g. first 10) numbers of Fibonacci series.

You need to implement a program that gets a number from user and prints first n Fibonacci series

numbers. Write a function for this purpose that prints Fibonacci series recursively. This function should

accept a number in parameter and then print n number of elements of Fibonacci series

An integer is said to be a perfect number if the sum of its divisors, including 1 (but not the number itself),

is equal to the number. For example, 6 is a perfect number, because 6 = 1 + 2 + 3. Write a function

isPerfect() that determines whether parameter number is a perfect number. Use this function in a

program that determines and prints all the perfect numbers between 1 and 1000. Print the divisors of

each perfect number to confirm that the number is indeed perfect. Challenge the power of your computer

by testing numbers much larger than 1000.

A parking garage charges a $2.00 minimum fee to park for up to three hours. The garage charges an

additional $0.50 per hour for each hour or part thereof in excess of three hours. The maximum charge for

any given 24-hour period is $10.00. Assume that no car parks for longer than 24 hours at a time. Write a

program that calculates and prints the parking charges for each of three customers who parked their cars

in this garage yesterday. You should enter the hours parked for each customer. Your program should print

the results in a neat tabular format and should calculate and print the total of yesterday’s receipts. The

program should use the function calculateCharges() to determine the charge for each customer. Your

outputs should appear in the following format:

Car Hours Charge

1 1.5 2.00

2 4.0 2.50

3 24.0 10.00

TOTAL 29.5 14.50

write an inline function, factorial (int x) which returns the factorial of value x. Test the function by reading values from the keyboard

Design a class having the constructor and destructor functions that should display the number of objects being created or destroyed of class type

consider the invert_dict function from Section 11.5 of your textbook. 

# From Section 11.5 of: 

# Downey, A. (2015). Think Python: How to think like a computer scientist. Needham, Massachusetts: Green Tree Press. 

def invert_dict(d):

   inverse = dict()

   for key in d:

      val = d[key]

     if val not in inverse:

        inverse[val] = [key]

     else:

        inverse[val].append(key)

   return inverse 

Modify this function so that it can invert your dictionary. In particular, the function will need to turn each of the list items into separate keys in the inverted dictionary. 

Run your modified invert_dict function on your dictionary. Print the original dictionary and the inverted one. 

Include your Python program and the output in your Learning Journal submission. 

Python Program

Write a program to print the following, Given a word W and pattern P, you need to check whether the pattern matches the given word.The word will only contain letters(can be Uppercase and Lowercase). The pattern can contain letters, ? and *.

? : Can be matched with any single letter.

* : Can be matched with any sequence of letters (including an empty sequence).

If the pattern matches with the given word, print True else False.

Sample Input1

3

Hello *l?

Hell He?ll

Hell ?*

Sample Output1

True

False

True

Sample Input1

3

Hello Hell*

Hell He*ll

Hell hell*

Sample Output1

True

True

False

Write a program that declares a structure to store BookID, price and pages of a book. It defines two structure variables and inputs values. It displays the record of most costly book.