Ошибка c2059 синтаксическая ошибка return

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#include <iostream>
using namespace std;


void DisplayMenu()
{
    cout << "Main Menu" << endl << endl;
    cout << "1. Draw a square" << endl;
    cout << "2. Draw a rectangle" << endl;
    cout << "3. Quit the program" << endl;

}


int GetUserMenuChoice()
{
    int menuChoice = 0;

    do
    {
        DisplayMenu();
        cin >> menuChoice;

        if (menuChoice < 1 || menuChoice > 3)
        {
            cout << "Please enter a valid menu choice: ";
            cin >> menuChoice;
        }

        else
        {
            cout << "You entered: " << menuChoice << endl << endl;

        }
    }
    return;
}




int GetSize()
{
    int size = 0;

    do
    {
        cout << "Enter a size value from 1-10: ";
        cin >> size;

        if (size < 1 || size > 10)
        {
            cout << "Please enter a valid size value: ";
            cin >> size;
        }

        else
        {
            cout << "You entered: " << size << endl << endl;
        }
    }

    return;
}


int GetHeight()
{
    int height = 0;

    do
    {
        cout << "Enter a height value from 1-10: ";
        cin >> height;

        if (height < 1 || height > 10)
        {
            cout << "Please enter a valid height value: ";
            cin >> height;
        }

        else
        {
            cout << "You entered: " << height << endl << endl;
        }
    }

    return;
}

int GetWidth()
{
    int width = 0;

    do
    {

        cout << "Enter a width value from 1-10: ";
        cin >> width;

        if (width < 1 || width > 10)
        {
            cout << "Please enter a valid width value: ";
            cin >> width;
        }

        else
        {
            cout << "You entered: " << width << endl << endl;
        }

    }

    return;
}


void DisplaySquare(int size)
{
    {
        int row = 0;
        int col = 0;

        for (col = 1; col <= size; col++)
        {
            cout << endl << endl;

            for (row = 1; row <= size; row++)
            {
                cout << " * ";
            }
        }
        system("pause");


    }

}

void DisplayRectangle(int height, int width)
{
    {
        int row = 0;
        int col = 0;

        for (col = 1; col <= height; col++)
        {
            cout << endl << endl;

            for (row = 1; row <= width; row++)
            {
                cout << " * ";
            }
        }
        system("pause");

    }

}



int main()
{
    int menuChoice = 0, size = 0, height = 0, width = 0;


    while (menuChoice != 3)
    {
        menuChoice = GetUserMenuChoice();

        switch (menuChoice)
        {
        case 1:		// Draw a square
            size = GetSize();
            DisplaySquare(size);
            break;
        case 2:		// Draw a rectangle
            height = GetHeight();
            width = GetWidth();
            DisplayRectangle(height, width);
            break;
        case 3:		// Quit the program
            cout << "Quitting program!" << endl;
            break;
        }
    }

    return 0;
}

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int GetUserMenuChoice()
{
    int menuChoice = 0;

    do
    {
        DisplayMenu();
        cin >> menuChoice;

        if (menuChoice < 1 || menuChoice > 3)
        {
            cout << "Please enter a valid menu choice: ";
            cin >> menuChoice;
        }

        else
        {
            cout << "You entered: " << menuChoice << endl << endl;

        }
    }
    return;
}

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menuChoice = GetUserMenuChoice();

switch (menuChoice)