Better Insight Extraction: cpp-programming

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Sunday, September 16, 2018

Question Aim: Pascal triangle using array

King Mohamed cpp-programming ,

Question: Write a C++ program using array that will print or display pascal triangle

Solution

NOTE: For a newbie in C++ it's difficult to understand the solution above as it has POINTERS, but don't worry about that, YOU JUST REVISIT THIS BLOG LATER ON THE DISCRIPTIONS OF THE CODES ABOVE WILL BE GIVEN

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Question aim: Displaying pascal triangle without using array

King Mohamed cpp-programming ,

Question: Write a C++ program that prints or displays pascal triangle on screen

Solution

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Question aim: Calculating average using a while loop in entering values

King Mohamed cpp-programming ,

Question: Write a C++ program that asks a teacher to enter marks of five subjects of his/her student and then calculate the average of the marks entered.

HINT: Use a while loop to iterate the five marks entered, when the fifth mark has been entered, the loop should exit, calculate the average and display the result. Sample output should be;

Enter marks: 10

Enter marks: 20

Enter marks: 30

Enter marks: 40

Enter marks: 50

The average is: 30.00

Solution

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Question aim: Determination of negative or positive number and its weight in another number

King Mohamed cpp-programming ,

Question: Write a c++ program to ask a user to enter a number, if a number is negative it should display "Negative number entered!" else if it is positive, it should determine if that number is greater than 10 or not.

Solution

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Question Aim: testing whether the lengths supplied form a triangle.

King Mohamed cpp-programming ,

Question: The triangle inequality theorem states that the sum of the lengths of any two sides of a triangle must be greater than or equal to the length of the third side. Write a program that asks a user tp enter lengths of the three sides of a triangle. The program then tests whether the lengths supplied form a triangle.

Solution

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Question Aim: Determination of odd or even number

King Mohamed cpp-programming ,

Question: Write a C++ program to check whether a number entered by user is odd or even.

Solution

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Question Aim: To calculate the volume of a sphere

King Mohamed cpp-programming ,

Question: Write a block of code that prompts user to enter the radius, then compute and output the volume of a sphere. (Recall that volume V of a sphere of radius r is given by V = (4/3)PIr3 and assume PI = 3.14

Solution

if(r <= 0) This condition ensures that the radius cannot be zero or negative

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Question 5: Write c++ program check if the employee is eligible for bonus or not

King Mohamed cpp-programming ,

Question 5: The current year and the year in which the Songea Teachers College employee joined the institution entered through the keyboard. if the number of years for which the employee has saved the college is greater than 10years,then the bonus of Tsh.250,000/= is given to the employee. if the years of the service is not greater than 10year,then the program should not do anything

Write c++ program check if the employee is eligible for bonus or not

Solution

#include<iostream>

using namespace std;

int main(){

int a,b,d;

cout<<"Enter the current year\n";

cin>>a; /*a implies the current year*/

cout<<"Enter the year an employee joined the institution\n";

cin>>b; /*b implies the year of joining the institution*/

d = a - b; /*Gets the difference of two years*/

if(b > a){

cout<<"The current year cannot be less than the year in which an employee joined the institution\n";

}else{

if(d >= 10){

cout<<"\nAn employee is eligible for the bonus of Tsh.250,000/=\n";

}else{

cout<<"\nAn employee is not eligible for the bonus of Tsh.250,000/=\n";

}

return 0;

}

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Question 4: Write c++ program compute amount (expenses) that will be paid by customer

King Mohamed cpp-programming ,

Question 4: While purchasing C++ programming books at the STC Bookstore discount of 12.5% is offered if the number of books purchased is more than 1000.if the number of book and price per book are input through keyboard

Write c++ program compute amount (expenses) that will be paid by customer

HINT: provide your answer in two decimal places

Solution

#include<iostream>

using namespace std;

int main(){

int n,price,the_discount,n_price;

const float DISCOUNT = 0.125; /*This is equal to 12.5%*/

cout<<"Enter the number of books to be sold\n";

cin>>n;

cout<<"Enter the price per book to be sold\n";

cin>>price;

if(n >= 1000){

the_discount = price * DISCOUNT;

n_price = price - the_discount;

cout<<"Total books: "<<n<<endl;

cout<<"Original price per book: "<<price<<endl;

cout<<"Price after discount: "<<n_price<<"\n\n";

cout<<"Total costs: "<<(n_price*n)<<".00"<<endl;

}else{

cout<<"Total books: "<<n<<endl;

cout<<"Original price per book: "<<price<<endl;

cout<<"Price after discount: "<<"No discount"<<"\n\n";

cout<<"Total costs: "<<(price*n)<<".00"<<endl;

}

return 0;

}

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Question 3:Write C++ Program to Find Largest Number among Three Numbers

King Mohamed cpp-programming ,

Question 3:Write C++ Program to Find Largest Number among Three Numbers

Solution

#include<iostream>

using namespace std;

int main(){

float a,b,c;

cout<<"\nC++ PROGRAM TO CHECK THE GREATEST NUMBER\n\n";

cout<<"Enter the first number\n";

cin>>a;

cout<<"Enter the second number\n";

cin>>b;

cout<<"Enter the third number\n";

cin>>c;

if(a>b && a>c){

cout<<"The first number which is " <<a<< " is the largest than "<<b<<" and "<<c<<endl;

}else if(b>a && b>c){

cout<<"The second number which is " <<b<< " is the largest than "<<a<<" and "<<c<<endl;

}else{

cout<<"The last number which is " <<c<< " is the largest than "<<b<<" and "<<a<<endl;

}

return 0;

}

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Question 2: Write C++ program to calculate the sum and average marks scored by students

King Mohamed cpp-programming ,

Question: Write C++ program to calculate the sum and average marks scored by Mazoezi secondary school form four student in the following subjects;physics,chemistry,biology,mathematic and English if the marks are entered from the keyboard:

Solution

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Question 1: Write a C++ program that display the following output

King Mohamed cpp-programming ,

Question: Write a C++ program that display the following output

WELCOM TO SONGEA TEACHERS COLLEGE

****************************

CHUO BORA CHA UWALIMU

ENJOY

SERVICES

####################################################################################ADD YOU REGISTRATION NUMBER HERE####################

Solution

#include<iostream>
using namespace std;
int main(){
cout<<"\n WELCOME TO SONGEA TWACHER'S COLLEGE\n";
cout<<"\t****************************\n";
cout<<"\tCHUO BORA CHA UWALIMU\n";
cout<<"\t\tENJOY \n\t\tO\n\t\tU\n\t\tR\n \t\tSERVICES\n";
cout<<"\n\n\tSTC/2018/XXXX\n";
return 0;
}

OUTPUT

Question involving WHILE loop in C++, well solved

King Mohamed cpp-programming ,

Question: Write a simple program that will prompt a user to enter an integer between 1 and 20. Then the program will print on screen the numbers starting from 1 and ending at the number that the user has entered. Example: If a user enters 6 then the program should print "1 2 3 4 5 6". If a user enters a value outside the specified range, it should give a message: "Incorrect input. Enter number between 1 and 20". (Note: Use WHILE loop);

Solution:

Code description:

int a; int a is a variable declaration for an ending point.

cin>>a; this line inputs user data for an ending point e.g. 6 to output 1 2 3 4 5 6

(a<1 || a>20) Is a conditional statement that checks if a user has entered a value outside the specified range, if this statement is true then the line cout<<"Incorrect input. Enter number between 1 and 20\n"; will be executed otherwise the else block is to be executed.

while(i<=a){

cout<<i<<" ";

i++;

}

The while loop loops from 1 to an ending point input by a user, it will display 1 at the start as the initial point of i has been set int i = 1; above and will increment(i++) by one for every iteration, and will stop the iteration when it reaches the number entered by a user...