code-approach2.cpp

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 * Code for the book "DAILY 43: Algorithmic Problems for Coding Interviews: Easy level, C++ edition"
 *
 * Licensed under the GNU General Public License, Version 3.0 (the "License");
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#include <iostream>
#include <cmath>

int climbStairs(int n) {
    n = n + 1;
    double phi = (1 + sqrt(5)) / 2; 
    return round(pow(phi, n) / sqrt(5));
}

int main() {
    int n = 5; // Example input
    int ways = climbStairs(n);
    std::cout << "Number of ways to climb " << n << " stairs: " << ways << std::endl;

    return 0;
}