Programming & Computer Science Answers

Write a program to take input for n number of employee records and write records of all employees in a file named: “record1”. Also write records of all those employees in another file named: “record2” who are taking salary more than 50,000. After writing records in both files, merge their contents in another file: “finalrecord” and read all records of “finalrecord” file and display on screen. [Attributes of employee: emp_id, emp_name, emp_experience, emp_salary]

Write a program that reads a list of integers, and outputs whether the list contains all multiples of 10, no multiples of 10, or mixed values. Define a function named IsVectorMult10 that takes a vector as a parameter, representing the list, and returns a boolean that represents whether the list contains all multiples of ten. Define a function named IsVectorNoMult10 that takes a vector as a parameter, representing the list, and returns a boolean that represents whether the list contains no multiples of ten.

Then, write a main program that takes an integer, representing the size of the list, followed by the list values. The first integer is not in the list. 

The program must define and call the following two functions. IsVectorMult10 returns true if all integers in the vector are multiples of 10 and false otherwise. IsVectorNoMult10 returns true if no integers in the vector are multiples of 10 and false otherwise.

bool IsVectorMult10(vector<int> myVec)

bool IsVectorNoMult10(vector<int> myVec)

3. Here We Go Again

by CodeChum Admin

This one’s probably one of the most popular recursion problems in programming. Your task is to create a recursive function that prints out the the first up to the nth number in the Fibonacci sequence by going through the numbers using recursion.

In case you forgot, here is the definition of a Fibonacci sequence:

• fib(n) = 1 if n = 1 or n = 2
• fib(n) = fib(n-1) + fib(n-2) when n > 2

Instructions:

1. In the code editor, you are provided with an initial code with a main() that asks the user for an integer n, which represents the number of elements in the Fibonacci sequence to be printed out.
2. In addition, you are also provided with an initial displayFibonacci() function which contains the code to supposedly display the first n elements in the Fibonacci sequence. However, it is not working as expected.
3. Your task is to find where the error is and fix the displayFibonacci() function.

5. A travelling salesman records his mileage at the end of each week in order to make an accurate claim for expenses.

Write a Java code:

* With a class called Travelling which has a calculateExpenses method which is to prompt the user to input the date and the number of kilometres travelled.

* Perform a validation to ensure that the number of kilometres is an integer greater than 0.

* The method should be written within the same class:

- The first 100 kilometres is paid at R1.20 per kilometre.

- If the of kilometres is more than 100, all additional kilometres are paid at R1.50 per kilometre

* Output:

- The date : 04/28/2022

- The number of kilometres travelled: 200

- The total expenses due : R270.0

4. The Litsemba Group Life Insurance company computes annual policy premiums based on the age the customer turns in the calendar year. The premium is computed by taking the decade of the customer's age, adding 15 to it, and multiplying by 20. For example, a 34 year would pay R360 which is calculated by adding the decades (3) to 15 and multiplying by 20. Write a Java application that prompts a user for the current year and a birth year. Pass both to method that calculates and returns the premium amount and display the returned amount. Application should be named Insurance.java . Note: The customer should not be older than 59 years . [10 Marks]

create a console application to test usage of switch case construct. Accept some integer from user as command line argument and using a switch case construct

You will be given a list of tuples where each tuple indicates a point i.e. (x, y) in a 2-dimensional coordinate system. You need to write a python program to find the minimum distance and the point that is closest to the origin i.e. (0,0)

Hint:

The formula of distance =√ [ (x₂ - x₁)² + (y₂ - y₁)²]

As you are calculating the distance from the origin (0,0), you can simply use distance = √ [ (x²+y²)] 

You can create a list of distances from each point and sort that list using your personal favorite sorting algorithm.

Sample Input 1 

points = [(5,3), (2,9), (-2,7), (-3,-4), (0,6), (7,2)] 

Sample Output 1 

Minimum distance = 5.0 

Here the closest point is (-3,-4) which has a distance of 5.0 from the origin.

Sample Input 2 

points = [(1,7), (4,5), (-1,7), (-2,0), (1,1), (5,-1)] 

Sample Output 2 

Minimum distance = 1.4142135623730951 Here the closest point is (1,1) which has a distance of 1.4142135623730951 from the origin.

Make a program that will accept an integer and loop for the same number of times as that of the inputted integer and input random integers and add it to the array/list one by one, per line. Afterwards, make your program accept another random integer.

Using that final integer, compare from your array/list if the final integer's value is also present in your current array/list. If so, print "Present"; otherwise, print "None".

Start coding now!

Input

The first line contains the size of the array/list.

The next lines contain the integers.

The last line contains an integer to be searched.

5

3

21

2

5

23

2

Output

A line containing a string.

Present

You will be given a list of tuples where each tuple indicates a point i.e. (x, y) in a 2-dimensional coordinate system. You need to write a python program to find the minimum distance and the point that is closest to the origin i.e. (0,0)

Hint:

The formula of distance =√ [ (x₂ - x₁)² + (y₂ - y₁)²]

As you are calculating the distance from the origin (0,0), you can simply use distance = √ [ (x²+y²)] 

You can create a list of distances from each point and sort that list using your personal favorite sorting algorithm.

Sample Input 1 

points = [(5,3), (2,9), (-2,7), (-3,-4), (0,6), (7,2)] 

Sample Output 1 

Minimum distance = 5.0 

Here the closest point is (-3,-4) which has a distance of 5.0 from the origin.

Sample Input 2 

points = [(1,7), (4,5), (-1,7), (-2,0), (1,1), (5,-1)] 

Sample Output 2 

Minimum distance = 1.4142135623730951 Here the closest point is (1,1) which has a distance of 1.4142135623730951 from the origin.

SNAKY CONVERSION

you are given a string S print the string in N rows containing a snaky pattern represenation as described below

INPUT:the first line should be a string

explanation:

s=AWESOMENESS N=4

consider the following snaky representation of the word

A E

W M N

E O E S

S S

the first row contains characters AE

the 2nd row contains characters WMN

the 3rd row contains characters EOES

THE fourth row contains characters SS

INPUT:

NEWSLETTER 3

OUTPUT:

NLE

ESETR

WT

INPUT:AWESOMENESS 4

OUTPUT:

AE

WMN

 EOES 

SS