v3

#include <iostream>
#include <string>

struct Address
{
    std::string street;
    unsigned short house = 0;
    unsigned short flat = 0;
};

struct Villager
{
    std::string name;
    Address address;
    unsigned short gender = 0;
    unsigned short old = 0;
};

int main()
{
    size_t amount;
    std::cout << "Enter amount of villagers: ";
    std::cin >> amount;

    auto villagers = new Villager[amount];
    for (size_t i = 0; i < amount; i++) {
        Villager &v = villagers[i];
        std::cout << "[Villager " << i << "] Enter name: ";
        std::cin >> v.name;
        std::cout << "[Villager " << i << "] Enter gender: ";
        std::cin >> v.gender;
        std::cout << "[Villager " << i << "] Enter old: ";
        std::cin >> v.old;
        std::cout << "[Villager " << i << ", Address] Enter street: ";
        std::cin >> v.address.street;
        std::cout << "[Villager " << i << ", Address] Enter house: ";
        std::cin >> v.address.house;
        std::cout << "[Villager " << i << ", Address] Enter flat: ";
        std::cin >> v.address.flat;
    }

    std::string street;
    std::cout << "Enter street: ";
    std::cin >> street;

    size_t result = 0;
    for (size_t i = 0; i < amount; i++) {
        Villager &current = villagers[i];
        std::cout << "Street " << i << ": " << current.address.street << std::endl;
        if (current.address.street != street) continue;

        if (current.gender == 0 && current.old > 18 && current.old < 60)
            result++;
    }

    std::cout << "Result: " << result << std::endl;
    return 0;
}