#include <iostream>
#include <chrono>
#include <cstdlib>  // For rand() and srand()
#include <ctime>    // For time()

int main() {
    // Seed for random number generation
    std::srand(static_cast<unsigned>(std::time(0)));

    // Initialize variable to a random value
    int var = std::rand() % 100;

    // Initialize array with random values
    const int N = 20000;
    int array[N];
    for (int i = 0; i < N; ++i) {
        array[i] = std::rand() % 100;  // Random values between 0 and 99
    }

    // Measure time for variable access
    auto start_var = std::chrono::high_resolution_clock::now();
    int sum_var = 0;
    for (int i = 0; i < N; ++i) {
        sum_var += var;  // Access variable repeatedly
    }
    auto end_var = std::chrono::high_resolution_clock::now();
    auto duration_var = std::chrono::duration_cast<std::chrono::nanoseconds>(end_var - start_var).count();

    // Measure time for array access
    auto start_array = std::chrono::high_resolution_clock::now();
    int sum_array = 0;
    for (int i = 0; i < N; ++i) {
        sum_array += array[i];  // Access array repeatedly
    }
    auto end_array = std::chrono::high_resolution_clock::now();
    auto duration_array = std::chrono::duration_cast<std::chrono::nanoseconds>(end_array - start_array).count();

    // Output the results
    std::cout << "Variable value: " << sum_var << "\n";
    std::cout << "Array sum: " << sum_array << "\n";
    std::cout << "Time taken for variable access: " << duration_var << " nanoseconds\n";
    std::cout << "Time taken for array access: " << duration_array << " nanoseconds\n";

    return 0;
}