Example: Cube Series up to N in C++

// Cube Series up to N
#include <iostream> // Required for input/output operations

int main() {
    int n; // Declare an integer variable 'n' to store the limit

    // Step 1: Prompt the user to enter a positive integer
    std::cout << "Enter a positive integer (n): ";
    std::cin >> n; // Read the user's input into 'n'

    // Step 2: Validate the input to ensure 'n' is positive
    if (n <= 0) {
        std::cout << "Please enter a positive integer." << std::endl;
        return 1; // Exit with an error code
    }

    // Step 3: Print a descriptive message
    std::cout << "The cube series up to " << n << " is: ";

    // Step 4: Use a for loop to iterate from 1 to 'n'
    for (int i = 1; i <= n; ++i) {
        // Calculate the cube of the current number 'i'
        long long cube = static_cast<long long>(i) * i * i;
        // Print the calculated cube, followed by a space
        std::cout << cube << " ";
    }
    std::cout << std::endl; // Print a newline character at the end for formatting

    return 0; // Indicate successful execution
}