fibonacci series in c++
#include <iostream>
using namespace std;
int main()
{
int num = 1, pre_num = 0, sum, n;
do
{
cout << "Enter number of terms 'n'of Fibonacci series: ";
cin >> n;
cout << "Fibonacci series: ";
for (int i = 0; i < n; i++)
{
sum = num + pre_num;
pre_num = num;
num = sum;
cout << num << " ";
}
return 0;
}fibonacci numbers in c++
#include <iostream>
using namespace std;
int main(){
int a{0},b{1},count{},c{};
cin >> count;
for (int i = 0; i < count; ++i)
{
cout << a << endl;
c = b;
b = a + b;
a = c;
}
}fibonacci sequence c++
#include <iostream>
using namespace std;
int main ()
{
int num1, num2, num3, input;
num1 = 0;
num2 = 1;
cout << "How many nums in sequence do you want to see: ";
cin >> input;
cout << num1 << " " << num2 << " ";
for(int i = 2; i < input; i++) // runs through every element but first two
{
num3 = num1 + num2;
cout << num3 << " ";
num1 = num2;
num2 = num3;
}
return 0;
}fibonacci in c++
#include<iostream>
using namespace std;
int main()
{
int num,num1=0,num2=1,num3,i=0;
cout<<"enter the number num"<<endl;
cin>>num;
for(i=1;i<=num;i++)
{
num3=num1+num2;
num1=num2;
num2=num3;
cout<<num3<<endl;
}
}fibbonaci c++
//dp ;Bottom up approach
#include <iostream>
using namespace std;
int fib(int n)
{
int fib[n+1];
fib[0]=0;
fib[1]=1;
for(int i=2;i<=n;i++)
{
fib[i]=fib[i-1]+fib[i-2];
}
return fib[n];
}
int main()
{
int n;
cout<<"enter the value whose fibonaaci value you want to claculate:"<<endl;
cin>>n;
if(n<=1)
{
cout<<"fib is: "<<n<<endl;
}
else
{
cout<<"fib is: "<<fib(n)<<endl;
}
return 0;
}fibonacci sequence c++
#include <iostream>
using namespace std;
void main()
{
int num,x=0,y=1,fib=0;
cin >> num;
if (num == 1)
cout << "0";
else if (num == 2)
cout << "0 1";
else
{
cout << "0 1 ";
for (size_t i = 0; i < num - 2; i++)
{
fib = x + y;
x = y;
y = fib;
cout << fib << " ";
}
}
}Copyright © 2021 Codeinu
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