Category Archives: C++ Programs

c plus plus programs

C++ Program to Find Largest Element of an Array

In this tutorial, we will learn to create a C++ program that will Find Largest Elements of an Array using C++ programming.

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C++ programming topics:

Operators.
looping statements.
Basic input/output.
Basic c++ programming
For Loop.
Array.

What is array?

An Array is a collection variable elements that can store multiple values in a single variable of same type.In Computer Science,an array is a data structure, or simply an array, is a data structure consisting of a collection of elements.

C++ Program to Find Largest Element of an Array

In this program we will find Largest Element in an Array. We would first declared and initialized the required variables. then we would prompt user to input elements of array .Later we will find the Biggest element in an Array.

#include<iostream>
using namespace std;
int main()
{
        int max, a[5], i; // dclaring avriables
        
        cout<<"\n Enter 5 Elements of array : \n";
        for(i=0; i<5; i++)  
        {
                cin>>a[i];
        }
        cout<<"\n Searching for Biggest Number ...\n\n";
        max=a[0];
        for(i=0; i<5; i++)
        {
                if(max<a[i])
                {
                        max=a[i];  // finding max value of an array
                }
        }
        cout<<"Largest Number in a an Array = "<<max;
        return 0;
}

#include<iostream>

using namespace std;

int main()

{

int max, a[5], i; // dclaring avriables

cout<<"\n Enter 5 Elements of array : \n";

for(i=0; i<5; i++)

{

cin>>a[i];

}

cout<<"\n Searching for Biggest Number ...\n\n";

max=a[0];

for(i=0; i<5; i++)

{

if(max<a[i])

{

max=a[i]; // finding max value of an array

}

cout<<"Largest Number in a an Array = "<<max;

return 0;

}

Output

C++ Program to Find Largest Element of an Array

In the above program, we have first declared and initialized a set variables required in the program.

a[5] = it will hold entered elements.
max =it will give largest number in an array.
i = for iteration.

In our program, we will take 5 values form user in an array ,

after taking these values we will find the maximum number in an array.

First of all we will take 5 values from user in variable a[5].

After that we will initialize max=a[0] i.e first element of a an array.

Now we compare the value of max with each and every value present in array a[5]. While comparing, if the value of max is less than in condition, then the value of max (value which is greater than max values) swapped and gets initialized to max and at the end we will get the maximum value within the array in max.

C++ Program to Calculate Average of Numbers Using Arrays

In this tutorial, we will learn to create a C++ program that will average the elements of Array using C++ programming.

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C++ programming topics:

Operators in C++ Programming.
Basic Input and Output function in C++ Programming.
Basic C++ programming.
For loop in C++ Programming.

Average of numbers:-

The average number means the sum of all the terms, divided by the number of terms. The resultant will be the average of numbers.

<strong>For example :-</strong>
Array containing the elements { 2 , 3 , 4  , 5 , 6 }
Total of the elements = 20.
Number of terms = 5.
Average of numbers = 4.

For example :-

Array containing the elements { 2 , 3 , 4 , 5 , 6 }

Total of the elements = 20.

Number of terms = 5.

Average of numbers = 4.

Algorithm:-

1. Declaring the variables and arrays. 

2. Taking input in Array. 

3. Adding the elements of the arrays. 

4. Finding the average of the elements of the array. 

5. Printing the average of the array.

6. End Program.

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						1. Declaring the variables and arrays. 
 
2. Taking input in Array. 
 
3. Adding the elements of the arrays. 
 
4. Finding the average of the elements of the array. 
 
5. Printing the average of the array.
 
6. End Program.

Program to Calculate Average of Numbers Using Arrays:-

As we all know array is a collection of similar data type elements. we can perform many different operations on arrays in c++ programming. In today’s program, we will take an array as an input and then we will find the average of all of its elements.

Program:-

To find the Average value element from the array

#include <iostream>
using namespace std;

int main()
{
    //declring the variables for the program.
    int n, i;
    float num[100], sum=0.0, average;
    
    //taking the size of array in the program.
    cout << "Enter the numbers of data: ";
    cin >> n;
    
    //taking the elements of the array.
    while (n > 100 || n <= 0)
    {
        cout << "Error! number should in range of (1 to 100)." << endl;
        cout << "Enter the number again: ";
        cin >> n;
    }

    for(i = 0; i < n; ++i)
    {
        cout << i + 1 << ". Enter number: ";
        cin >> num[i];
        sum += num[i];
    }

    //printing the average of the program
    average = sum / n;
    cout << "Average = " << average;

    return 0;
}

#include <iostream>

using namespace std;

int main()

{

//declring the variables for the program.

int n, i;

float num[100], sum=0.0, average;

//taking the size of array in the program.

cout << "Enter the numbers of data: ";

cin >> n;

//taking the elements of the array.

while (n > 100 || n <= 0)

{

cout << "Error! number should in range of (1 to 100)." << endl;

cout << "Enter the number again: ";

cin >> n;

}

for(i = 0; i < n; ++i)

{

cout << i + 1 << ". Enter number: ";

cin >> num[i];

sum += num[i];

}

//printing the average of the program

average = sum / n;

cout << "Average = " << average;

return 0;

}

Output:-

In the above program, we have first initialized the required variable

num = it will hold the elements in an array.
n = it will hold the number of elements in an array.
i = it will hold the integer value to control the array.
sum= it will hold the float value for the sum of the array.
avg= it will hold the float value for the average of the array.

Taking input from the user in an array number of elements in the array.

Taking input from the user in array elements in the array.

Sum of the array.

Calculating the Average of Array printing the output number.

C++ program to find even and odd elements in array

C++ program to find even and odd elements in the array

In this tutorial, we will learn to create a C++ program that will find even and odd elements in the array using C++ programming.

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C++ programming topics:

Operators in C++ Programming.
Basic Input and Output function in C++ Programming.
Basic C++ programming.
For loop in C++ programming.
Conditional Statements in C++ programming.
Arithmetic operations in C++ Programming.

Even and Odd Numbers:-

The Even numbers are those numbers that are completely divisible by 2. which means the reminder should be zero. And the Odd numbers are those numbers that are not completely divisible by 2.

Algorithm:-

1. Declaring the variables for the program.

2. Taking the input number from the user.

3. Storing in array.

4. Calculating the Even and the odd numbers from the array.

5. Printing the result numbers.

6. End Program.

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						1. Declaring the variables for the program.
 
2. Taking the input number from the user.
 
3. Storing in array.
 
4. Calculating the Even and the odd numbers from the array.
 
5. Printing the result numbers.
 
6. End Program.

Program to find even and odd elements in the array

In C++ programming, it is possible to take integer input from the user and find even and odd elements in the array with the help of a very small amount of code. We will pass that array to a condition to find even and odd numbers from the array.

With the help of the below program, we can Find Even & Odd elements in the array.

Program Code:-

/*  C++ Program to Find Even and Odd Numbers using array  */

#include<iostream>
using namespace std;

int main()
{
    //declaring the variables for the Program
    int arry[20],even[20],odd[20],i,j=0,k=0,size;
    // taking the size of the array
    cout<<"Enter the size of the array in number :: ";
    cin>>size;
        cout<<"\nEnter the elements of array :: \n";

        for(i=0; i<size; i++)
        {
            //taking the elements of the array
            cout<<"\nEnter arry["<<i<<"] Element :: ";
                cin>>arry[i];
        }
  
  cout<<"\nStored Data in array :: \n\n";

  for(i=0;i<size;i++)
  {
  cout<<" "<<arry[i]<<" ";
  }

   for(i=0; i<size;i++)
   {
   if(arry[i]%2==0)
   {
    even[j]=arry[i];
    j++;
   }
   else
   {
   odd[k]=arry[i];
   k++;
   }
   }
  //printing the elements of the array even and odd
  cout<<"\n\nEven Elements in array are :: \n\n";

  for(i=0; i<j ;i++)
   {
     cout<<" "<<even[i]<<" ";
   }

  cout<<"\n\nOdd Elements in array are :: \n\n";

  for(i=0; i<k; i++)
   {
    cout<<" "<<odd[i]<<" ";
   }

   cout<<"\n";

  return 0;

  }

/* C++ Program to Find Even and Odd Numbers using array */

#include<iostream>

using namespace std;

int main()

{

//declaring the variables for the Program

int arry[20],even[20],odd[20],i,j=0,k=0,size;

// taking the size of the array

cout<<"Enter the size of the array in number :: ";

cin>>size;

cout<<"\nEnter the elements of array :: \n";

for(i=0; i<size; i++)

{

//taking the elements of the array

cout<<"\nEnter arry["<<i<<"] Element :: ";

cin>>arry[i];

}

cout<<"\nStored Data in array :: \n\n";

for(i=0;i<size;i++)

{

cout<<" "<<arry[i]<<" ";

}

for(i=0; i<size;i++)

{

if(arry[i]%2==0)

{

even[j]=arry[i];

j++;

}

else

{

odd[k]=arry[i];

k++;

}

//printing the elements of the array even and odd

cout<<"\n\nEven Elements in array are :: \n\n";

for(i=0; i<j ;i++)

{

cout<<" "<<even[i]<<" ";

}

cout<<"\n\nOdd Elements in array are :: \n\n";

for(i=0; i<k; i++)

{

cout<<" "<<odd[i]<<" ";

}

cout<<"\n";

return 0;

}

Output:-

In the above program, we have first initialized the required variable.

arry[20] = it will hold the integer value.
even[20] = it will hold the integer value.
odd[20] = it will hold the integer value.
i = it will hold the integer value.
j = it will hold the integer value.
k = it will hold the integer value.
size = it will hold the integer value.

Taking input from the user the size and the elements of the array.

Stored Data in the array.

Program Logic Code and print the even & odd numbers Separately.

C++ Program to Delete Array Element

In this tutorial, we will learn to create a C++ program that will delete the element of Array using C++ programming.

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C++ programming topics:

Operators in C++ Programming.
Basic Input and Output function in C++ Programming.
Basic C++ programming.
For loop in C++ Programming.

Program for Delete the element of Array:-

An array is a collection of similar data type elements. In today’s program, we will take an array in input from the user and then we will take the element for deleting from the array. After deleting the element from the array we will reprint the array.

Algorithm for program:-

Step 1. Initialize the required variable for the program.

Step 2. Take size of array in input from the user.

Step 3. Taking the elements of the array from the user.

Step 4. Taking the location of the deleting element.

Step 5. Deleting the element from the array.

Step 6. Print the resultant array on the screen.

Step 7. End program.

Step 1. Initialize the required variable for the program.

Step 2. Take size of array in input from the user.

Step 3. Taking the elements of the array from the user.

Step 4. Taking the location of the deleting element.

Step 5. Deleting the element from the array.

Step 6. Print the resultant array on the screen.

Step 7. End program.

Program code:-

To Delete an element from the array

#include<iostream>
using namespace std;
int main()
{
    //declaring the variables for the program
    int arr[10], tot=10, i, elem, j, found=0;
    
    //Taking input from the user
    cout<<"Enter 10 Array Elements: ";
    for(i=0; i<tot; i++)
        cin>>arr[i];
        //taking deletion element from the user
    cout<<"\nEnter Element to Delete: ";
    cin>>elem;
    for(i=0; i<tot; i++)
    {
        if(arr[i]==elem)
        {
            for(j=i; j<(tot-1); j++)
                arr[j] = arr[j+1];
            found++;
            i--;
            tot--;
        }
    }
    if(found==0)
    //printing the deletion message for the element
        cout<<"\nElement doesn't found in the Array!";
    else
        cout<<"\nElement Deleted Successfully!";
    cout<<endl;
    return 0;
}

#include<iostream>

using namespace std;

int main()

{

//declaring the variables for the program

int arr[10], tot=10, i, elem, j, found=0;

//Taking input from the user

cout<<"Enter 10 Array Elements: ";

for(i=0; i<tot; i++)

cin>>arr[i];

//taking deletion element from the user

cout<<"\nEnter Element to Delete: ";

cin>>elem;

for(i=0; i<tot; i++)

{

if(arr[i]==elem)

{

for(j=i; j<(tot-1); j++)

arr[j] = arr[j+1];

found++;

i--;

tot--;

}

if(found==0)

//printing the deletion message for the element

cout<<"\nElement doesn't found in the Array!";

else

cout<<"\nElement Deleted Successfully!";

cout<<endl;

return 0;

}

Output:-

In the above program, we have first initialized the required variable.

arr[10] = it will hold the elements in an array.
tot = it will hold the number of elements in an array.
i = it will hold the integer value to control the array.
Elem = it will hold the location for delete element size of the array.

Taking input from the user in an array of elements.

Deleting the array element.

Printing the Program Code

C++ Programs to Insert Element in Array

C++ Program to Insert Element in Array

In this tutorial, we will learn to create a C++ program that will do Insert Element in Array using C++ programming.

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C++ programming topics:

Operators in C++ Programming.
Basic Input and Output function in C++ Programming.
Basic C++ programming.
For loop in C++ Programming.
Creating and Using the user-defined function in C++ programming.

Insert Element in Array:-

In this tutorial, we will make a program that will insert the element in the array using c++ programming. First will take the five elements of an array from the user. Then will take the new elements from the user for inserting in the array. And at last, we will insert that element at the end of the array.

Algorithm:-

Step 1. Initialize the required variable for the prohgram.

Step 2. Take size of array from the user.

Step 3. Take the elements of array from the user.

Step 4. Take location to insert an element in the array.

Step 5. Insert the element in the array.

Step 6. Printing the result array.

Step 7. End program.

Step 1. Initialize the required variable for the prohgram.

Step 2. Take size of array from the user.

Step 3. Take the elements of array from the user.

Step 4. Take location to insert an element in the array.

Step 5. Insert the element in the array.

Step 6. Printing the result array.

Step 7. End program.

Program Code:-

/* C++ Programs to Insert an Element in Array */
#include<iostream>
using namespace std;
int main()
{
    //Declaring the variable for the program.
    int arr[6], i, elem;
    //Taking the input from the user
    cout<<"Enter 5 Array Elements: ";
    for(i=0; i<5; i++)
        cin>>arr[i];
    //Taking the elements of the array
    cout<<"\nEnter Element to Insert: ";
    cin>>elem;
    arr[i] = elem;
    //Taking the elements to insert in the array
    cout<<"\nThe New Array is:\n";
    for(i=0; i<6; i++)
        cout<<arr[i]<<"  ";
    cout<<endl;
    return 0;
}

/* C++ Programs to Insert an Element in Array */

#include<iostream>

using namespace std;

int main()

{

//Declaring the variable for the program.

int arr[6], i, elem;

//Taking the input from the user

cout<<"Enter 5 Array Elements: ";

for(i=0; i<5; i++)

cin>>arr[i];

//Taking the elements of the array

cout<<"\nEnter Element to Insert: ";

cin>>elem;

arr[i] = elem;

//Taking the elements to insert in the array

cout<<"\nThe New Array is:\n";

for(i=0; i<6; i++)

cout<<arr[i]<<" ";

cout<<endl;

return 0;

}

Output:-

In the above program, we have first declared and initialized a set of variables required in the program.

i = it will hold the integer value.
arr[6] = it will hold the elements in an array.
elem = it will hold the integer value that will be inserted in the array.

Taking input from the user:-

New elements from the user.

Taking input elements to add from the user.

C++ Program to Calculate Compound Interest

In this tutorial, we will learn to create a c++ program that will calculate compound interest using c++ programming.

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Arithmetic operators.
Basic input/output.
Looping statements.
Operator precedence.
Data types.

What Is Compound Interest?

Compound Interest is a interest that obtain by adding the interest of each year to the principal sum and then calculating the interest on the updated amount.

CI is interest earned from the original principal + accumulated interest.

Formula for Compound Interest is.

Here,
P is principle amount.
R is the rate in Percent %.
T is time in year.

C++ Program to Calculate Compound Interest.

In this program we will find Compound Interest ,We would first declared and initialized the required variables. Next, we would prompt user to input principle,rate and time (p, r, t) and applying Compound Interest formula to calculate Compound Interest. Now let’s have look at the code .

#include<iostream>
#include <bits/stdc++.h>
using namespace std;
 
int main()
{
    double p,r,t,ci,amount; // declaring variables
    cout<<"enter principle rate and time :"; //  taking values
    cin>>p>>r>>t;
 

     amount = p * (pow((1 + r / 100), t));  // finding ci.
     ci = amount- p;
 
    cout << "Compound interest is " << ci;
 
    return 0;
}

#include<iostream>

#include <bits/stdc++.h>

using namespace std;

int main()

{

double p,r,t,ci,amount; // declaring variables

cout<<"enter principle rate and time :"; // taking values

cin>>p>>r>>t;

amount = p * (pow((1 + r / 100), t)); // finding ci.

ci = amount- p;

cout << "Compound interest is " << ci;

return 0;

}

Output

C++ Program to Calculate Compound Interest

Here the Logic behind to calculate compound interest.

Here is the logic to find compound interest.

- First of all we take 3 values of principle,time and rate.
- We store the given inputted values in variable p,rand t respectively.
- Now passing all three values to know formula of CI which is.
First of all the values of p,r and t is given by user at compile time and with the help of power function we will calculate the ci of given years.Finally, we print the resultant value of ci.

C++ Program to Calculate Simple Interest

In this tutorial, we will learn to create a c++ program that will find Simple Interest using c++ programming

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Basic C++ programming.
Operators.
Basic input/output.
Basic mathematics calculation.
Precedence.

What Is Simple interest ?

Simple interest is the interest amount given by the bank within a year to user or taken by bank or firm from consumer for a particular principal amount of money at some rate of interest. Simple Interest is a method of calculating the interest for a loan/principal amount.

Here:=>
SI = Simple Interest.
P = Principal.
R = Rate of interest (in percentage).
T = Time Interval (in years).

C++ Program to Calculate Simple Interest.

In this program we will print find Simple Interest . We would first declared and initialized the required variables. Next, we would prompt user to input the Principal,Rate and time . Later we will find Simple Interest.

#include<iostream>
using namespace std;
int main()
{
    float si,p,r,t; // declaring varibales
    cout<<"enter principal \t"; // taking input
    cin>>p;
    cout<<"enter rate \t";
    cin>>r;
    cout<<"enter time in year.\t";
    cin>>t;
    si=(p*r*t)/100;   // caluclating si
    cout<<"Simple Intrest="<<si;  // printing si.

    return 0;
}

#include<iostream>

using namespace std;

int main()

{

float si,p,r,t; // declaring varibales

cout<<"enter principal \t"; // taking input

cin>>p;

cout<<"enter rate \t";

cin>>r;

cout<<"enter time in year.\t";

cin>>t;

si=(p*r*t)/100; // caluclating si

cout<<"Simple Intrest="<<si; // printing si.

return 0;

}

Output

C++ Program to Calculate Simple Interest

In the above program, we have first declared and initialized a set variables required in the program.

si = For calculating si.
p= for principal.
r= for rate of interest.
t= for time interval in a year.

First of all we declare variables si,p,r and t then by prompting user to give Principal Rate and time . Here in this program we get principal rate and time from user.

After accepting values of principle, rate and time from user , we apply the formula to calculate simple interest is which is si= (principle x rate x time) / 100. and after calculating si we will print the Simple Interest.

Simple Interest is a method used by mostly in Banking and Economic sectors to calculate the interest charges on loans or in saving account by Bank or Economic Sectors.

C++ Program to Calculate Student Grade

In this tutorial, we will learn to create a c++ program that will Calculate Student Grade using c++ programming

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C++ programming topics:

Basic C++ programming.
Operators.
Basic input/output.
Basic mathematics calculation.
Precedence.

C++ Program to Calculate Student Grade .

In this program we will Calculate Student Grade. We would first declared and initialized the required variables. Next, we would prompt user to input Subject numbers. Later we will find the grade of that student.

#include<iostream>
using namespace std;

int main()
{
int m,p,c,h,e,total=0; // declaring variables
float per;
 cout<<"Enter 5 Subject  marks :\n ";
 cin>>m>>p>>c>>h>>e; // taking values from user
total=m+p+c+h+e; 
cout<<"Sum of 5 Subjects is ="<<total;
per=total/5; // calculating the percentage 
if(per>85)  // calculating grades..
{
cout<<"\nA grade";
}
else if(per<85 && per>=75) 
{
cout<<"\nB grade";
}
else if(per<75 && per>=50)
{
cout<<"\nC grade";
}
else if(per<50 && per>=30) 
{
cout<<"\nD grade";
}
else 
{
cout<<"\nFail";
}
return 0;
}

#include<iostream>

using namespace std;

int main()

{

int m,p,c,h,e,total=0; // declaring variables

float per;

cout<<"Enter 5 Subject marks :\n ";

cin>>m>>p>>c>>h>>e; // taking values from user

total=m+p+c+h+e;

cout<<"Sum of 5 Subjects is ="<<total;

per=total/5; // calculating the percentage

if(per>85) // calculating grades..

{

cout<<"\nA grade";

}

else if(per<85 && per>=75)

{

cout<<"\nB grade";

}

else if(per<75 && per>=50)

{

cout<<"\nC grade";

}

else if(per<50 && per>=30)

{

cout<<"\nD grade";

}

else

{

cout<<"\nFail";

}

return 0;

}

Output

C++ Program to Calculate Student Grade

In the above program, we have first declared and initialized a set variables required in the program.

m = holds value of math.
p = holds value of physics.
c = holds value of chemistry
h = holds value of Hindi.
e= holds value of English.
total = calculate sum of value.
per= it will hold percentage.

In the next statement user will be prompted to enter the five subject marks which will be assigned to variable ‘m’,’p’,’c’,’h’,’e’.

after that we add all given values in variable total ( total =m+p+c+h+e ).Now, we calculated the percentage (per=total/5).Grades must be calculated based on following conditions.
If percentage > 85 then A grade.

elseIf (percentage < 85 && percentage >= 75) print B grade

else If percentage < 75 && percentage >= 50 print C grade

else If percentage > 30 && percentage <= 50 print D grade

else percentage <30 print fail.
First we take subject marks of student as inputted we find the total and percentage.and after that for grade compare the percentage with different criteria as mentioned in the program.

C++ Program to Calculate Percentage Of Students Marks

In this tutorial, we will learn to create a c++ program that will calculate Percentage Of students using c++ programming

Prerequisites

Before starting with this program we assume that you are best aware of the following C ++ programming topics:

Operators.
Basic input/output.
Basic c++ programming.

C++ Program to Calculate entered 5 subjects marks and calculate percentage.

In this program we will create a program in which user enter the marks of five subjects and calculate percentage.We would first declared and initialized the required variables. Next, we would prompt user to input the number of terms. Later we will calculate percentage of given number of terms.
And you will learn how to find percentage of the five subjects in C++ language.
using for loop.

#include<iostream> 
using namespace std; 
int main()
 { 
    int m,p,c,h,e; // declaring variables float total,per; 
    cout << "Please Enter five subject marks: \n"; 
    cin >>m >>p >>c >>h >>e; // taking values from user 
    total = m+p+c+h+e; 
    per = total / 5; // calculating percentage 
    cout << "\nTotal Marks = " << total; 
    cout << "\nMarks in Percentage = " << per<<"%"; // printing result
   return 0;
 }

#include<iostream>

using namespace std;

int main()

{

int m,p,c,h,e; // declaring variables float total,per;

cout << "Please Enter five subject marks: \n";

cin >>m >>p >>c >>h >>e; // taking values from user

total = m+p+c+h+e;

per = total / 5; // calculating percentage

cout << "\nTotal Marks = " << total;

cout << "\nMarks in Percentage = " << per<<"%"; // printing result

return 0;

}

Output

In the above program, we have first declared and initialized a set variables required in the program.

m = holds value of math.
p = holds value of physics.
c = holds value of chemistry
h = holds value of Hindi.
e= holds value of English.
total = calculate sum of value.
per= it will hold percentage.

In this C++ program to calculate Percentage of Five Subjects .

In the first cout<<“” statement will ask the user to enter the 5 subjects number.

then we add all 5 given value in variable total ( total =m+p+c+h+e ).

Now, we calculated the percentage (per=total/5).

And we will get the required output.This program allows user to enter five values of five different subjects. And then calculate the Total and Percentage of those Five Subjects.

C++ Program to Calculate area of rectangle

In this tutorial, we will learn to create a c++ program that find Area of Rectangle using c++ programming

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

C++ Operators.
Functions.
Basic input/output.
Basic c++ programming.

What Is Area?

Area measures the space inside any shape.
The extent or measurement of a surface or piece of land.
Area term is used to define the amount of space cover up by a 2D shape or surface.

C++ Program to Calculate area of rectangle

In this program , we will calculate Area of Rectangle of a given Length and Width .First of all user will be prompted to enter Length and Width and afterword passing these value to function to calculate Area of Rectangle.

#include <iostream>

using namespace std;

float AreaOfRect(float l, float w) // function to calculate area or rectangle
{
    return (l*w);
}

int main()
{
float length, width; // declaring variables
dcout<<"please enter Length : "; // taking input width and length.
cin>>length;
cout<<"please enter Width : ";
cin>>width;
cout<<"\n Area of Rectangle is : "<< AreaOfRect(length, width); //passing values to function
return 0;
}

#include <iostream>

using namespace std;

float AreaOfRect(float l, float w) // function to calculate area or rectangle

{

return (l*w);

}

int main()

{

float length, width; // declaring variables

dcout<<"please enter Length : "; // taking input width and length.

cin>>length;

cout<<"please enter Width : ";

cin>>width;

cout<<"\n Area of Rectangle is : "<< AreaOfRect(length, width); //passing values to function

return 0;

}

Output

C++ Program to Calculate area of rectangle

In the above program, we have first declared and initialized a set variables required in the program.

length = it will hold entered length.
width = it will hold entered width.
l= hold value of length.
w=hold value of width.

Now let us look process of find area of rectangle step by step.

- - first or all take length and width from user.
  - then pass these value of length and width to function AreaOfRect(length, width).
  - where in function we calculate area of rectangle using formula (a=l*w).

- after, calculating area function returns us the area of rectangle or given length and width,
- Finally in main function we will print the area of rectangle of given values.

C++ Program to Convert Fahrenheit to Celsius

In this tutorial, we will learn to create a c++ program that Convert Fahrenheit to Celsius using c++ programming

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C++ programming topics:

Operators.
looping statements.
Basic input/output.
Basic c++ programming
For Loop.
String.

What Is Temperature ?

Temperature is a quantity that measured the freezing and boiling point of water. Which is measured in different scales like Celsius and Fahrenheit.
In Celsius scale, the boiling point of water is 100°C, and the freezing point is at 0°C, while in the Fahrenheit scale the boiling point of water is 212°F and freezing point is at 32°F.

C++ Program to Convert Fahrenheit to Celsius.

In this program we will convert temperature from Fahrenheit to Celsius. We would first declared and initialized the required variables. Next, we would prompt user to input the value in Fahrenheit. Later we will Convert the values into Celsius.

To convert values from Fahrenheit to Celsius we will use following Formula:

C = (F – 32)*(5/9)where, F is temperature in Fahrenheit and C is temperature in Celsius.

#include <iostream>
using namespace std;

int main() 
{
float f, c;
cout << "Please enter temperature in fahrenheit\n";
cin >> f;
// converting fahreneheit to celsius 

c = 5 * (f - 32) / 9;
cout << f <<" Fahrenheit is equal to =" << c <<" Centigrade";

return 0;
}

#include <iostream>

using namespace std;

int main()

{

float f, c;

cout << "Please enter temperature in fahrenheit\n";

cin >> f;

// converting fahreneheit to celsius

c = 5 * (f - 32) / 9;

cout << f <<" Fahrenheit is equal to =" << c <<" Centigrade";

return 0;

}

Output

C++ Program to Convert Fahrenheit to Celsius

Logic to find Fahrenheit to Centigrade

First of all Take the Fahrenheit temperature in f
Then calculate c = 5 * (f – 32) / 9.
return C.

In the above program, we have first declared and initialized a set variables required in the program.

f = it will hold Fahrenheit value.
c= it will hold Celsius value.

And in the next statement user will be prompted to enter value in Fahrenheit and which will be assigned to variable ‘f’.

After that with the help of formula we will convert the value in to Celsius.

As you can see in above program, we first take value in Fahrenheit as input from user. Then convert the value of Fahrenheit in to Celsius using above conversion equation and print the Temperature in Celsius.

C++ Program to Convert Celsius to Fahrenheit

In this tutorial, we will learn to create a c++ program that Convert Celsius to Fahrenheit using c++ programming

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C++ programming topics:

Operators.
looping statements.
Basic input/output.
Basic c++ programming
For Loop.
String.

What Is Temperature ?

C++ Program to Convert Celsius to Fahrenheit.

In this program we will convert temperature from Celsius to Fahrenheit . We would first declared and initialized the required variables. Next, we would prompt user to input the value in Celsius. Later we will Convert the values into Fahrenheit.

To convert values from Celsius to Fahrenheit we will use following Formula:

f = (c * 9 / 5) + 32 where, F is temperature in Fahrenheit and C is temperature in Celsius.

#include <iostream>
using namespace std;

int main() 
{
float f, c;
cout << "Please enter temperature in <strong>Celsius</strong>\n";
cin >> c;
// converting <strong>Celsius to </strong>fahreneheit  

<strong>f = (c * 9 / 5) + 32;
</strong>
cout << c <<" <strong>Celsius </strong>is equal to =" << f <<" fahreneheit ";

return 0;
}

#include <iostream>

using namespace std;

int main()

{

float f, c;

cout << "Please enter temperature in Celsius\n";

cin >> c;

// converting Celsius to fahreneheit

f = (c * 9 / 5) + 32;

cout << c <<" Celsius is equal to =" << f <<" fahreneheit ";

return 0;

}

Output

Logic to find Centigrade to Fahrenheit

First of all Take the Celsius Temperature in c
Then calculate f = (c * 9 / 5) + 32.
return f.

In the above program, we have first declared and initialized a set variables required in the program.

f = it will hold Fahrenheit value.
c= it will hold Celsius value.

And in the next statement user will be prompted to enter value in Celsius and which will be assigned to variable ‘c‘.

After that with the help of formula we will convert the value in to Fahrenheit .

As you can see in above program, we first take value in Celsius as input from user. Then convert the value of Celsius into Fahrenheit using above conversion equation and print the Temperature in Fahrenheit .