Function generate_all2

test/test_balanced_brackets.cpp:44–53

}

vector<string> generate_all2(int n) {
    vector<string> all;
    for (int i = 0; i <= n; i++) {
        string s = string(i, '(') + string(i, ')');
        s += string(n-i, '[') + string(n-i, ']');
        find_all_permutation(s, all);
    }
    sort(all.begin(), all.end());
    return all;
}

void test_all(int n) {
    vector<string> all = generate_all(n);