C++ Answers

100-500 words per explanation and avoid plagiarism.

Explain the following datatypes in your own words without copying it from

anywhere.

a. int

b. float.

c. double.

d. string.

e. Bool.

Write a program that creates and then reads a matrix of 5 rows and 5 columns of type int. while

reading; the program should not accept values greater than 100. For any entered value greater

than 100, the program should ask for input repeatedly. After reading all numbers, the system

should find the smallest number in the matrix and its location or index values. The program

should print the smallest number and its location (row and column) and also print their count

Create a Date class with three

integer instance variables named

day,month,year.It has a constructor

with three parameters for initializing

the instance variables,and it has one

method named daysSinceJan1(). It

computes and returns the number of

days since January 1 of the same

year,including January 1 and the day

in the Date object.

For example,if day is a Date object

with day=1,month=3,and

year=2000,then the

calldate.daysSinceJan1() should

return 61 since there are 61 days

between the dates of January

1,2000,and March 1,2000,including

January 1 and March 1. Don’t forget

to consider leap years.

300-500 words per discussion and avoid plagiarism

discuss the following

a. pointers

b. arrays

c. structures

d. classes

e. functions

Write a code which demonstrates the use of hex,oct,dec manipulators

Write an algorithm to find the energy produced at every second of the reaction is allowed to happen for n seconds

You are set out travel for your "Magical Vacation" and you are given a choice to take two destinations. You draw up multiple destination starting at asingle origin with different routes. Suppose different routes from torigin are represented complete binary tree height h, with number of node, n = 2 ^h - 1, where each node and each leaf of this tree ha associated cost "c" (any arbitrary real number). The destination are leaves of the tree. You can compute the cost to destination (leaf node) by summing up avalues of the nodes on the path up root, including leaf node itself. You are to find two destination has the lowest cost as your choice for vacation ie., x,y (two leaves). you can find cost by summing up all nodes in the path up the root. nodes only once [ie., you are taking the union of the ancestors up to origin]. Write a program to compute the lowest destination pair – that is of all leaf combinations which pair gives the lowest cost. Example: C(x,y) = 9 + 15+12 + 14+19+54 =123

Question 5 (20 marks) avoid plagiarism.

Discuss Object oriented programming in c++ with 4 points. Each point shoult not be less

than 200 words.

Question 4 (25 marks) avoid plagiarism. Write the following program in c++.

i. Create a class of your own choice with 5 attributes.

ii. Create an object of named objone in the intmain() function

iii. Access attributes and set values for all the 5 attributes

iv. Print all the attribute values

v. Create a function in the class that add two number and access the function using the

oblject.

Question 5 (20 

Write the following program in c++.

Combine your first and second name and pick only the first five characters of your name for the project.

i. Declare an array named name1 and put all the first five characters into it.

ii. Write a for loop with an if condition that will find and output the index value of a

searched character in the array. Let the program be such that the user will input the character being searched for.