C++ Programs to Generate Fibonacci Series

In this tutorial you will learn about the C++ Programs to Generate Fibonacci Series and its application with practical example.

In this tutorial, we will learn to create a C++ program that will Reverse Array Element Using Function using C++ programming.

Table Of Contents−

C++ Programs to Generate Fibonacci Series

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.
Functions in C++ Programming.

What is Fibonacci Series?

The Fibonacci series is a series that is strongly related to Binet’s formula (golden ratio). in the Fibonacci series, the series starts from 0, 1 and then the third value is generated by adding those numbers,

Algorithm:-

STEP 1: START

STEP 2: INITIALIZE n

STEP 3: Sending the message to inter the value of n from user

STEP 4: Grabbing the n number element from the user

STEP 5: Using that number in for loop and calculations

STEP 6: Generating the fibonacci series

STEP 7: Printing the series.

STEP 8: Return 0.

STEP 10: END.

STEP 1: START

STEP 2: INITIALIZE n

STEP 3: Sending the message to inter the value of n from user

STEP 4: Grabbing the n number element from the user

STEP 5: Using that number in for loop and calculations

STEP 6: Generating the fibonacci series

STEP 7: Printing the series.

STEP 8: Return 0.

STEP 10: END.

Programs to Generate Fibonacci Series:-

In this program, we take the number of elements for the series from the user. Then we will generate the Fibonacci series from the below program code.

Program:-

Program to Generate Fibonacci Series

#include <iostream>
using namespace std;

int main() 
{
    //declaring the variables required for the programs.
    int n, t1 = 0, t2 = 1, nterm = 0;
    
    //Taking input number from the user for upto n terms.
    cout << "Enter the number of terms: ";
    cin >> n;
    
    //Printing the fibonacci Series upto the n terms.
    cout << "Fibonacci Series: ";

    for (int i = 1; i <= n; ++i) {
        // Prints the first two terms.
        if(i == 1) {
            cout << t1 << ", ";
            continue;
        }
        if(i == 2) {
            cout << t2 << ", ";
            continue;
        }
        nterm = t1 + t2;
        t1 = t2;
        t2 = nterm;
        //Printing the terms fo fibonacci Series
        cout << nterm << ", ";
    }
    return 0;
}

#include <iostream>

using namespace std;

int main()

{

//declaring the variables required for the programs.

int n, t1 = 0, t2 = 1, nterm = 0;

//Taking input number from the user for upto n terms.

cout << "Enter the number of terms: ";

cin >> n;

//Printing the fibonacci Series upto the n terms.

cout << "Fibonacci Series: ";

for (int i = 1; i <= n; ++i) {

// Prints the first two terms.

if(i == 1) {

cout << t1 << ", ";

continue;

}

if(i == 2) {

cout << t2 << ", ";

continue;

}

nterm = t1 + t2;

t1 = t2;

t2 = nterm;

//Printing the terms fo fibonacci Series

cout << nterm << ", ";

}

return 0;

}

Output:-

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

t1 = it will hold the integer value.

t2 = it will hold the integer value.
nterm = it will hold the integer value.
n = it will hold the integer value.

i = it will hold the integer value to control the array.

Generating the fibonacci series.

Program Code for Printing the series.

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C++ Programs to Generate Fibonacci Series