programming-examples/c++/Numerical_Problems/C++ Program to Find Fibonacci Numbers using Dynamic Programming.cpp

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2019-11-18 14:44:36 +01:00
/*
* C++ Program to Find Fibonacci Numbers using Dynamic Programming
*/
#include <cstring>
#include <iostream>
#include <cstdlib>
#define ll long long
using namespace std;
ll fib[1000] = {0};
/*
* Fibonacci Numbers using Dp
*/
ll fibo_dp(int n)
{
fib[1] = 1;
fib[2] = 1;
if (fib[n] == 0)
{
for (int j = 3; j <= n; ++j)
{
if (fib[n] == 0)
fib[j] = fib[j - 1] + fib[j - 2];
else
continue;
}
}
return fib[n];
}
/*
* Main
*/
int main()
{
int n;
while (1)
{
cout<<"Enter the integer n to find nth fibonnaci no.(0 to exit): ";
cin>>n;
if (n == 0)
break;
cout<<fibo_dp(n)<<endl;
}
return 0;
}
/*
Enter the integer n to find nth fibonnaci no.(0 to exit): 10
55
Enter the integer n to find nth fibonnaci no.(0 to exit): 9
34
Enter the integer n to find nth fibonnaci no.(0 to exit): 8
21
Enter the integer n to find nth fibonnaci no.(0 to exit): 7
13
Enter the integer n to find nth fibonnaci no.(0 to exit): 6
8
Enter the integer n to find nth fibonnaci no.(0 to exit): 5
5
Enter the integer n to find nth fibonnaci no.(0 to exit): 4
3
Enter the integer n to find nth fibonnaci no.(0 to exit): 3
2
Enter the integer n to find nth fibonnaci no.(0 to exit): 2
1
Enter the integer n to find nth fibonnaci no.(0 to exit): 0
------------------
(program exited with code: 1)
Press return to continue