온라인 C++ 컴파일러

#include <iostream>

int main() {
    std::cout << "Hello, World!" << std::endl;
    return 0;
}

#include <iostream>
#include <string>

int main() {
    std::string name = "Alice";
    int age = 30;
    std::cout << name << " is " << age << std::endl;
    return 0;
}

#include <iostream>

int main() {
    int x = 10;
    if (x > 0) std::cout << "Positive" << std::endl;
    else if (x == 0) std::cout << "Zero" << std::endl;
    else std::cout << "Negative" << std::endl;
    return 0;
}

#include <iostream>

int main() {
    for (int i = 0; i < 5; i++)
        std::cout << "Count: " << i << std::endl;

    int total = 0;
    while (total < 10) total += 3;
    std::cout << "Total: " << total << std::endl;
    return 0;
}

#include <iostream>
#include <string>

std::string greet(const std::string& name, const std::string& greeting = "Hello") {
    return greeting + ", " + name + "!";
}

int main() {
    std::cout << greet("Alice") << std::endl;
    std::cout << greet("Bob", "Hi") << std::endl;
    return 0;
}

#include <iostream>
#include <vector>
#include <map>

int main() {
    std::vector<std::string> fruits = {"apple", "banana", "cherry"};
    fruits.push_back("date");
    std::cout << fruits[1] << std::endl;

    std::map<std::string, int> person = {{"age", 30}};
    std::cout << "Age: " << person["age"] << std::endl;
    return 0;
}

#include <iostream>
#include <string>

class Dog {
public:
    std::string name, breed;
    Dog(std::string n, std::string b) : name(n), breed(b) {}
    std::string bark() { return name + " says Woof!"; }
};

int main() {
    Dog dog("Rex", "Labrador");
    std::cout << dog.bark() << std::endl;
    return 0;
}

#include <iostream>
#include <stdexcept>

int divide(int a, int b) {
    if (b == 0) throw std::runtime_error("Division by zero");
    return a / b;
}

int main() {
    try {
        std::cout << divide(10, 0) << std::endl;
    } catch (const std::exception& e) {
        std::cout << "Error: " << e.what() << std::endl;
    }
    return 0;
}

#include <iostream>
#include <fstream>
#include <string>

int main() {
    std::ofstream out("output.txt");
    out << "Hello, File!" << std::endl;
    out.close();

    std::ifstream in("output.txt");
    std::string line;
    std::getline(in, line);
    std::cout << line << std::endl;
    return 0;
}

#include <iostream>
#include <vector>
#include <algorithm>
#include <numeric>

int main() {
    std::vector<int> nums = {5, 2, 8, 1, 9, 3};
    std::sort(nums.begin(), nums.end());
    int sum = std::accumulate(nums.begin(), nums.end(), 0);
    auto it = std::find(nums.begin(), nums.end(), 8);
    std::cout << "Sorted: ";
    for (int n : nums) std::cout << n << " ";
    std::cout << "\nSum: " << sum << std::endl;
    return 0;
}