using System using System Collections Generic using System ComponentMo

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsFormsApplication2
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }


        private void button1_Click(object sender, EventArgs e)
        {
            textBox3.Text = "";
            int N = Convert.ToInt32(textBox3.Text);
            int[,] a = new int[N, N];
            int sum = 0, s = 0;
            bool mgc = true;
            Random rand = new Random();

            if (textBox3.TextLength < 1)
                MessageBox.Show("Задайте размерность массива!");
            
            for (int i = 0; i < N; i++)
            {
                for (int j = 0; j < N; j++)
                    a[i, j] = rand.Next(0, 9);
            }

            for(int i = 0; i < N; i++)
            sum += a[0, i];

            for(int i = 0; i < N; i++)
            {
                s = 0;
                for(int j = 0; j < N; j++)
                s += a[i,j];
                if (s != sum)
                {
                    mgc = false;
                    break;
                }
            }

            if (mgc)
            {
                for (int i = 0; i < N; i++)
                {
                    s = 0;
                    for (int j = 0; j < N; j++)
                        s += a[j,i];
                    if (s != sum)
                    {
                        mgc = false;
                        break;
                    }
                }

                
                
            }

            if (mgc)
            {
                s = 0;
                for (int i = 0; i < N; i++)
                    for (int j = 0; j < N; j++)
                        if (i == j)
                            s += a[i,j];
                if (s != sum)
                    mgc = false;
            }


            if (mgc)
            {
            s = 0;
            for (int i = 0; i < N; i++)
                for(int j = 0; j < N; j++)
                if((i + j) == (N - 1)) 
                s += a[i,j];
                if(s != sum) 
                mgc = false;
            }




            string text = "";
            for (int i = 0; i < N; i++)
            {
                for (int j = 0; j < N; j++)
                    text += a[i, j] + " ";
                text += "\r\n";
            }

            textBox2.Text = text;

            if (mgc == true)
                textBox1.Text = "Congrats, Its magic square";
            else
                textBox1.Text = "Its not magic square";

        }
    }
}