#include <iostream>

int main() {
    // Basic for loop
    for (int i = 0; i < 5; i++) {
        std::cout << "Iteration " << i << std::endl;
    }
    
    // For loop with different step
    for (int i = 10; i >= 0; i -= 2) {
        std::cout << i << " ";
    }
    std::cout << std::endl;
    
    return 0;
}

#include <iostream>

int main() {
    int count = 0;
    
    // Basic while loop
    while (count < 5) {
        std::cout << "Count: " << count << std::endl;
        count++;
    }
    
    // While loop with condition
    int number = 1;
    while (number <= 10) {
        if (number % 2 == 0) {
            std::cout << number << " is even" << std::endl;
        }
        number++;
    }
    
    return 0;
}

#include <iostream>

int main() {
    int choice;
    
    do {
        std::cout << "Enter 1-5 (0 to exit): ";
        std::cin >> choice;
        
        if (choice >= 1 && choice <= 5) {
            std::cout << "You selected: " << choice << std::endl;
        }
    } while (choice != 0);
    
    std::cout << "Goodbye!" << std::endl;
    return 0;
}

#include <iostream>

int main() {
    // Nested for loops for multiplication table
    for (int i = 1; i <= 5; i++) {
        for (int j = 1; j <= 5; j++) {
            std::cout << i * j << "\t";
        }
        std::cout << std::endl;
    }
    
    // Pattern printing
    for (int i = 1; i <= 5; i++) {
        for (int j = 1; j <= i; j++) {
            std::cout << "* ";
        }
        std::cout << std::endl;
    }
    
    return 0;
}

#include <iostream>

int main() {
    // Using break
    for (int i = 1; i <= 10; i++) {
        if (i == 5) {
            break;  // Exit loop when i equals 5
        }
        std::cout << i << " ";
    }
    std::cout << std::endl;
    
    // Using continue
    for (int i = 1; i <= 10; i++) {
        if (i % 2 == 0) {
            continue;  // Skip even numbers
        }
        std::cout << i << " ";
    }
    std::cout << std::endl;
    
    return 0;
}

#include <iostream>
#include <vector>
#include <string>

int main() {
    // Range-based for with array
    int numbers[] = {1, 2, 3, 4, 5};
    for (int num : numbers) {
        std::cout << num << " ";
    }
    std::cout << std::endl;
    
    // Range-based for with vector
    std::vector<std::string> names = {"Alice", "Bob", "Charlie"};
    for (const std::string& name : names) {
        std::cout << "Hello, " << name << "!" << std::endl;
    }
    
    return 0;
}