x = 3; y = 3; a = 0;
    while(a < 10000){
        main_maze[y][x] = pass; a++;
        while(true){
            c = rand()%4;
            switch(c){
                case 0: if(y != 1)
                    if(main_maze[y-2][x] == wall){
                        main_maze[y-1][x] = pass;
                        main_maze[y-2][x] = pass;
                        y-=2;
                    }
                case 1: if(y != height-2)
                    if(main_maze[y+2][x] == wall){
                        main_maze[y+1][x] = pass;
                        main_maze[y+2][x] = pass;
                        y+=2;
                    }
                case 2: if(x != 1)
                    if(main_maze[y][x-2] == wall){
                        main_maze[y][x-1] = pass;
                        main_maze[y][x-2] = pass;
                        x-=2;
                    }
                case 3: if(x != width-2)
                    if(main_maze[y][x+2] == wall){
                        main_maze[y][x+1] = pass;
                        main_maze[y][x+2] = pass;
                        x+=2;
                    }
                default:
                    break;
            }
            if(deadEnd(x,y,main_maze,height,width))
                break;
        }

        if(deadEnd(x,y,main_maze,height,width))
            do{
                x = 2*(rand()%((width-1)/2))+1;
                y = 2*(rand()%((height-1)/2))+1;
            } while(main_maze[y][x] != pass);
    }