Məsələlər
Fibonaççi
include <iostream>
using namespace std; long long fibonacci(int n) { if (n <= 1) return n; long long a = 0, b = 1, c; for (int i = 2; i <= n; ++i) { c = a + b; a = b; b = c; } return b; } int main() { int n; cin >> n; cout << fibonacci(n+1) << endl; return 0; }
include <bits/stdc++.h>
define ll long long int
define ld long double
using namespace std; int main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
ll n;
cin>>n;
ll x = 1, y = 1, k;
for(int i = 1; i<n; i++){
k = y;
y = x+y;
x = k;
}
cout<<y;
} //TECHNOBLADE NEVER DIES