Birleştirme

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

struct Task {
    std::string title;
    bool done;
};

void addTask(std::vector<Task>& tasks, const std::string& title) {
    Task t;
    t.title = title;
    t.done = false;
    tasks.push_back(t);
}

void listTasks(const std::vector<Task>& tasks) {
    for (size_t i = 0; i < tasks.size(); ++i) {
        if (tasks[i].done) {
            std::cout << "[x] " << tasks[i].title << "\n";
        } else {
            std::cout << "[ ] " << tasks[i].title << "\n";
        }
    }
}

void completeTask(std::vector<Task>& tasks, size_t index) {
    if (index < tasks.size()) {
        tasks[index].done = true;
    }
}

void runMenu(std::vector<Task>& tasks, const std::vector<std::string>& titles) {
    for (const std::string& t : titles) {
        addTask(tasks, t);
    }
}

int main() {
    std::vector<Task> tasks;
    std::vector<std::string> titles = {"Ekmek al", "Süt al", "Yumurta al"};
    runMenu(tasks, titles);
    listTasks(tasks);
    return 0;
}