example1_simple_lvalues.cpp

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#include <iostream>

int main() {
    int x = 10;      // 'x' is an lvalue
    int* ptr = &x;   // You can take the address of 'x'

    std::cout << "x: " << x << std::endl;
    std::cout << "Address of x: " << ptr << std::endl;

    *ptr = 20;       // You can modify the value of 'x' through 'ptr'
    std::cout << "Modified x: " << x << std::endl;

    return 0;
}