MyForm

//После namespace:
void string_split_smart(string str, string razd, string*& result, int& new_count) {
        for (int i = 0; i < str.length(); i++) {
            int l = razd.find(str[i]);
            if (l < 0 || l > razd.length()) {
                result[new_count] = result[new_count] + str[i];
            }
            else {
                if (str[i] == ' ') {
                    if (result[new_count] != "") {
                        result[++new_count] = "";
                    }
                }
                else {
                    if (result[new_count] != "") {
                        new_count++;
                    }
                    result[new_count] = str[i];
                    result[++new_count] = "";
                }
            }
        }
    }

//После кода компилятора:
private: System::Void MyForm_Load(System::Object^ sender, System::EventArgs^ e) {

}
//Universe:
private: System::Void textBox1_TextChanged(System::Object^ sender, System::EventArgs^ e) {
    if (this->textBox1->Text != "")
    {
        u_size = Convert::ToInt64(this->textBox3->Text);
    }
}

//And
private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e)
{
    this->textBox4->Text = " ";

    TSet A(u_size);
    TSet B(u_size);
    for (int i = 0; i < this->textBox1->Text->Split(' ')->Length; i++)
    {
        A.Add(Convert::ToInt32(this->textBox1->Text->Split(' ')[i]));
    }
    for (int i = 0; i < this->textBox2->Text->Split(' ')->Length; i++)
    {
        B.Add(Convert::ToInt32(this->textBox2->Text->Split(' ')[i]));
    }
    string res = (A & B).TSet_to_String();
    string* sos = new string[res.length() / 2 + 2];
    int count = 0;
    string_split_smart(res, " ", sos, count);
    for (int i = 0; i < count+1; i++)
    {
        this->textBox4->Text += Convert::ToString(atoi(sos[i].c_str())) + " ";
    }
    this->textBox2->Text = " ";
    string res2 = B.TSet_to_String();
    string* sos2 = new string[res.length() / 2 + 2];
    int count2 = 0;
    string_split_smart(res2, " ", sos2, count2);
    for (int i = 0; i < count2 + 1; i++)
    {
        this->textBox2->Text += Convert::ToString(atoi(sos2[i].c_str())) + " ";
    }
    this->textBox1->Text = " ";
    string res3 = A.TSet_to_String();
    string* sos3 = new string[res.length() / 2 + 2];
    int count3 = 0;
    string_split_smart(res3, " ", sos3, count3);
    for (int i = 0; i < count3 + 1; i++)
    {
        this->textBox1->Text += Convert::ToString(atoi(sos3[i].c_str())) + " ";
    }
}
//Or
private: System::Void button2_Click(System::Object^ sender, System::EventArgs^ e)
{
    this->textBox4->Text = " ";

    TSet A(u_size);
    TSet B(u_size);
    for (int i = 0; i < this->textBox1->Text->Split(' ')->Length; i++)
    {
        A.Add(Convert::ToInt32(this->textBox1->Text->Split(' ')[i]));
    }
    for (int i = 0; i < this->textBox2->Text->Split(' ')->Length; i++)
    {
        B.Add(Convert::ToInt32(this->textBox2->Text->Split(' ')[i]));
    }
    string res = (A | B).TSet_to_String();
    string* sos = new string[res.length() / 2 + 2];
    int count = 0;
    string_split_smart(res, " ", sos, count);
    for (int i = 0; i < count + 1; i++)
    {
        this->textBox4->Text += Convert::ToString(atoi(sos[i].c_str())) + " ";
    }
    this->textBox2->Text = " ";
    string res2 = B.TSet_to_String();
    string* sos2 = new string[res.length() / 2 + 2];
    int count2 = 0;
    string_split_smart(res2, " ", sos2, count2);
    for (int i = 0; i < count2 + 1; i++)
    {
        this->textBox2->Text += Convert::ToString(atoi(sos2[i].c_str())) + " ";
    }
    this->textBox1->Text = " ";
    string res3 = A.TSet_to_String();
    string* sos3 = new string[res.length() / 2 + 2];
    int count3 = 0;
    string_split_smart(res3, " ", sos3, count3);
    for (int i = 0; i < count3 + 1; i++)
    {
        this->textBox1->Text += Convert::ToString(atoi(sos3[i].c_str())) + " ";
    }
}
//Complement A
private: System::Void button3_Click(System::Object^ sender, System::EventArgs^ e)
{
    this->textBox4->Text = " ";

    TSet A(u_size);

    for (int i = 0; i < this->textBox1->Text->Split(' ')->Length; i++)
    {
        A.Add(Convert::ToInt32(this->textBox1->Text->Split(' ')[i]));
    }
    string res = (~A).TSet_to_String();
    string* sos = new string[res.length() / 2 + 2];
    int count = 0;
    string_split_smart(res, " ", sos, count);
    for (int i = 0; i < count + 1; i++)
    {
        this->textBox4->Text += Convert::ToString(atoi(sos[i].c_str())) + " ";
    }
    this->textBox2->Text = " ";
    string res2 = A.TSet_to_String();
    string* sos2 = new string[res.length() / 2 + 2];
    int count2 = 0;
    string_split_smart(res2, " ", sos2, count2);
    for (int i = 0; i < count2 + 1; i++)
    {
        this->textBox1->Text += Convert::ToString(atoi(sos2[i].c_str())) + " ";
    }
}
//Complement B
private: System::Void button8_Click(System::Object^ sender, System::EventArgs^ e)
{
    this->textBox4->Text = " ";

    TSet B(u_size);

    for (int i = 0; i < this->textBox2->Text->Split(' ')->Length; i++)
    {
        B.Add(Convert::ToInt32(this->textBox2->Text->Split(' ')[i]));
    }
    string res = (~B).TSet_to_String();
    string* sos = new string[res.length() / 2 + 2];
    int count = 0;
    string_split_smart(res, " ", sos, count);
    for (int i = 0; i < count + 1; i++)
    {
        this->textBox4->Text += Convert::ToString(atoi(sos[i].c_str())) + " ";
    }
    this->textBox2->Text = " ";
    string res2 = B.TSet_to_String();
    string* sos2 = new string[res.length() / 2 + 2];
    int count2 = 0;
    string_split_smart(res2, " ", sos2, count2);
    for (int i = 0; i < count2 + 1; i++)
    {
        this->textBox2->Text += Convert::ToString(atoi(sos2[i].c_str())) + " ";
    }
}
        B.Add(Convert::ToInt32(this->textBox2->Text->Split(' ')[i]));
    }
    string res = (A | B).TSet_to_String();
    string* sos = new string[res.length() / 2 + 2];
    int count = 0;
    string_split_smart(res, " ", sos, count);
    for (int i = 0; i < count + 1; i++)
    {
        this->textBox4->Text += Convert::ToString(atoi(sos[i].c_str())) + " ";
    }
}
//Complement A
private: System::Void button3_Click(System::Object^ sender, System::EventArgs^ e)
{
    this->textBox4->Text = " ";

    TSet A(u_size);

    for (int i = 0; i < this->textBox1->Text->Split(' ')->Length; i++)
    {
        A.Add(Convert::ToInt32(this->textBox1->Text->Split(' ')[i]));
    }
    string res = (~A).TSet_to_String();
    string* sos = new string[res.length() / 2 + 2];
    int count = 0;
    string_split_smart(res, " ", sos, count);
    for (int i = 0; i < count + 1; i++)
    {
        this->textBox4->Text += Convert::ToString(atoi(sos[i].c_str())) + " ";
    }
}
//Complement B
private: System::Void button8_Click(System::Object^ sender, System::EventArgs^ e)
{
    this->textBox4->Text = " ";

    TSet B(u_size);

    for (int i = 0; i < this->textBox2->Text->Split(' ')->Length; i++)
    {
        B.Add(Convert::ToInt32(this->textBox2->Text->Split(' ')[i]));
    }
    string res = (~B).TSet_to_String();
    string* sos = new string[res.length() / 2 + 2];
    int count = 0;
    string_split_smart(res, " ", sos, count);
    for (int i = 0; i < count + 1; i++)
    {
        this->textBox4->Text += Convert::ToString(atoi(sos[i].c_str())) + " ";
    }
    this->textBox2->Text = " ";
    string res2 = B.TSet_to_String();
    string* sos2 = new string[res.length() / 2 + 2];
    int count2 = 0;
    string_split_smart(res2, " ", sos2, count2);
    for (int i = 0; i < count2 + 1; i++)
    {
        this->textBox2->Text += Convert::ToString(atoi(sos2[i].c_str())) + " ";
    }
}