Pb12. Lambda expresii

#include <iostream>
#include <vector>
#include <algorithm>
#include <functional>
using namespace std;

int main2()
{
    int a = 10;
    auto test = [&a](int b)
    {
        a += 5;
        b += a;
        return b;
    };

    cout << a << " " << test(25) << "\n";
    return 0;
}

int main3()
{
    vector<int> v;
    for (int index = 0; index < 5; ++index)
    {
        int x;
        cin >> x;
        v.push_back(x);
    }

    sort(v.begin(), v.end(), [](int x, int y) {return x > y;});

    for (int index = 0; index < 5; ++index)
        cout << v[index] << ' ';
    v.clear();
    return 0;
}

int main()
{
    int x = 5, y = 10;
    function<int(void)> f = [&x, y]() {return x + y;};
    x += 5;
    y += 5;
    cout << f();
    return 0;
}