Fibonacci Series Program in C++ and C with flowchart

Fibonacci Series Program in C++ and C with the flowchart.

Fibonacci Series Program in C++ with “do-while loop”

#include<iostream>
using namespace std;
int main()
{
	int a=0,b=1,t,j=1,num;
	cout<<"enter the limit ";
	cin>>num;
	cout<<"The Fb Series is "<<a<<b;
	do
	{
		t=a+b;
		cout<<t;
		a=b;
		b=t;
		j++;
		
	}
	while(j<=num);
	cout<<endl;
}

#include<iostream>

using namespace std;

int main()

{

int a=0,b=1,t,j=1,num;

cout<<"enter the limit ";

cin>>num;

cout<<"The Fb Series is "<<a<<b;

{

t=a+b;

cout<<t;

a=b;

b=t;

j++;

}

while(j<=num);

cout<<endl;

}

Output

enter the limit 3

The Fb Series is 01123

What lines will execute if “j=1”?

1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18.

What lines will execute if “j=2”?

1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, (T), 10, 11, 12, 13, 14, 15, 16, 17

What lines will execute if “j=3”?

1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, (T), 10, 11, 12, 13, 14, 15, 16, 17, 18, 10, 11, 12, 13, 14, 15, 16, 17, 18

Fibonacci Series flowchart

fibonacci-series-algorithm in c cpp cplusplus — **Figure:** Fibonacci-series flowchart.

Fibonacci Series Program in C++ with for loop

#include<iostream>
using namespace std;
int main()
{
int x;
int num;
int next;
int fst=0;
int sec=1;
cout<<"Enter Nubmer the Number To Start Series: ";
cin>>num;
cout<<"Numbers In The Fibonacci Series Are: \n";
for(x=0; x<num; x++)
	{
		cout<<"\n"<<fst;
		next = fst + sec;
		fst = sec;
		sec = next;
	}
cout<<"by";
}

#include<iostream>

using namespace std;

int main()

{

int x;

int num;

int next;

int fst=0;

int sec=1;

cout<<"Enter Nubmer the Number To Start Series: ";

cin>>num;

cout<<"Numbers In The Fibonacci Series Are: \n";

for(x=0; x<num; x++)

{

cout<<"\n"<<fst;

next = fst + sec;

fst = sec;

sec = next;

}

cout<<"by";

}

Output

fibonacie series program in cpp, c — **figure:** Fibonacci series program output.

C++ Fibonacci Series using while loop

#include <iostream>
using namespace std;

int main() {
    int Current = 0, Next = 1, nextTerm = 0, n;

    cout << "Enter a positive number: ";
    cin >> n;

    // displays the first two terms which is always 0 and 1
    cout << "Fibonacci Series: " << Current << ", " << Next << ", ";

    nextTerm = Current + Next;

    while(nextTerm <= n) {
        cout << nextTerm << ", ";
        Current = Next;
        Next = nextTerm;
        nextTerm = Current + Next;
    }
    return 0;
}

#include <iostream>

using namespace std;

int main() {

int Current = 0, Next = 1, nextTerm = 0, n;

cout << "Enter a positive number: ";

cin >> n;

// displays the first two terms which is always 0 and 1

cout << "Fibonacci Series: " << Current << ", " << Next << ", ";

nextTerm = Current + Next;

while(nextTerm <= n) {

cout << nextTerm << ", ";

Current = Next;

Next = nextTerm;

nextTerm = Current + Next;

}

return 0;

}