int main() {
    int error_code = some_function();
    if (error_code == 1) {
        // In case of error, crash the program by eating up memory
        while (true) new int;
    }
}

int var = 0;
int* ptr = &var;
ptr[0] = 5;
std::cout << ptr[0];

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

constexpr int N = 10;

int main() {
    std::vector<int> even;
    std::vector<int> odd;
    
    even.resize(N);
    
    // Fill up the 'even' vector with integers starting from from 1 through 'N'
    std::iota(even.begin(), even.end(), 1);

    // Segregate the odd and even integers from each other
    
    for (auto it = even.begin(); it != even.end(); ++it)
        if (*it % 2 != 0) {
            // If the number is odd, put it in the 'odd' vector
            odd.push_back(*it);
            // Remove the number from the even vector
            even.erase(it);
        }

    // Print the result
    
    std::cout << "Even numbers: ";
    std::copy(even.begin(), even.end(), std::ostream_iterator<int>(std::cout, " "));

    std::cout << "\nOdd numbers: ";
    std::copy(odd.begin(), odd.end(), std::ostream_iterator<int>(std::cout, " "));

    std::cout << '\n';
}

    string sum_numbers(string a, string b) {
        char ca, cb, ci, out, co = '0';
        string result = "";
        while (a.size() > 0 || b.size() > 0 || co != '0') {
            ci = co; ca = '0'; cb = '0';
            if (a.size() > 0) {ca = a.back(); a.pop_back();}
            if (b.size() > 0) {cb = b.back(); b.pop_back();}
            result = ((((ca != cb) ? '1' : '0') != ci) ? '1' : '0') + result;
            co = ((((ca == '1' && cb == '1') ? '1' : '0') == '1' || 
                 ((((ca != cb) ? '1' : '0') == '1' && ci == '1') ? '1' : '0') == '1') ? '1' : '0');
        }
        return result;
    }