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Chromebooks, being Linux based, run all the tools you need native. You can use git, node, npm, python, php, c, whatever you need. ChromeOS has an inbuilt shell, it's called crosh. Type ' shell ' in it, enter your chroot ' sudo enter-chroot ' and you can develop as you would on a Macbook or any other system. Apr 27, 2021 Plug the bootable installer into a Mac that is connected to the internet and compatible with the version of macOS you're installing. Press and hold the Option (Alt) ⌥ key immediately after turning on or restarting your Mac. Release the Option key when you see a dark screen showing your bootable volumes. Aug 07, 2015 Macbuntu is an open-source program, designed to transform Linux’s appearance and layout into a Mac OS X environment. Although Macbuntu is dedicated to Ubuntu Linux OS, it could be used in other OS based on Debian/GTK. Q&A for power users of Apple hardware and software. Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Linux users and OSX users must not be unfamiliar with the package manager. With the Package Manager, you can install a package from a single line of commands, and then the Package Manager will help you download the package from the software source, and automatically resolve all dependencies (that is, other packages that are dependent on downloading the installation of this package) to complete all configurations. The Apt-get,fedora/centos used by Debian/ubuntu and the homebrew available under OSX are excellent package managers.
You decide to design your own package Manager. Inevitably, you need to solve the dependencies between packages. If package a relies on package B, you must install package B before you install package A. Also, if you want to uninstall package B, you must uninstall package a. Now you've got all the dependencies between the packages. And, because of your previous work, in addition to the No. 0 package, the packages in your manager will depend on one and only one package, and the No. 0 package does not depend on any one package. Dependency does not exist ring (if there is M (m≥2) package a1,a2,a3,..., am, where A1 relies on a2,a2 dependency a3,a3 dependency a4,......,am?1 dependent am, and am relies on A1, it is said that the dependencies of M packages form a ring), Of course there will not be a package that relies on itself.
Now you need to write a dependency resolver for your package manager. Based on feedback, users want to quickly know when a package is installed and uninstalled how many packages are installed (that is, how many packages are installed, or how many installed packages are uninstalled), and your task is to implement this section. Note that installing an installed package, or uninstalling a package that is not installed, will not change the installation state of any packages, in which case the number of packages changing the installation state is 0.
Input
Now you need to write a dependency resolver for your package manager. Based on feedback, users want to quickly know when a package is installed and uninstalled how many packages are installed (that is, how many packages are installed, or how many installed packages are uninstalled), and your task is to implement this section. Note that installing an installed package, or uninstalling a package that is not installed, will not change the installation state of any packages, in which case the number of packages changing the installation state is 0.
Input
The 1th line of the input file contains 1 positive integer n, which indicates the total number of packages. The package is numbered starting from 0.
The following line contains n?1 integers, separated by a single space between adjacent integers, representing the number of packages on which the,..., n?2,n?1 package depends.
The next line contains 1 positive integer q, which indicates the total number of queries.
After Q line, 1 queries per line. There are two types of inquiries:
INSTALLX: Indicates installation package X
UNINSTALLX: means uninstalling package X
You need to maintain the installation status of each package and all packages are not installed at the beginning. For each operation, you need to output this step to change the installation state of how many packages, and then apply this action (that is, change the installation state of your maintenance).
Output
The next line contains 1 positive integer q, which indicates the total number of queries.
After Q line, 1 queries per line. There are two types of inquiries:
INSTALLX: Indicates installation package X
UNINSTALLX: means uninstalling package X
You need to maintain the installation status of each package and all packages are not installed at the beginning. For each operation, you need to output this step to change the installation state of how many packages, and then apply this action (that is, change the installation state of your maintenance).
Output
The output file includes the Q line.
The output file of line I outputs 1 integers, the number of packages that change the installation state for step I operations.
Sample Input
Sample Input
7
0 0 0 1 1 5
5
Install 5
Install 6
Uninstall 1
Install 4
Uninstall 0
Sample Output
Sample Output
3
1
3
![Ubuntu macbook Ubuntu macbook](https://ubuntupit.com/wp-content/uploads/2017/11/Albert.jpg)
2
3
HINT
HINT
All packages are not installed at the beginning.
Intu Ubuntu Mac Os X
![Ubuntu Ubuntu](https://ubuntupit.com/wp-content/uploads/2017/11/la_capitaine_3.jpg)
Installing the 5th package requires the installation of 0,1,5 three packages.
After installing the 6th package, you only need to install the number 6th package. 0,1,5,6 Four packages are installed at this time.
Uninstalling the 1th package requires uninstalling 1,5,6 three packages. Only the No. 0 package is in the installation state at this time.
After installing the 4th package, you need to install 1, 42 packages. At this point the 0,1,4 is in the installation state.
Finally, uninstalling the NO. 0 package will uninstall all packages.
n=100000
q=100000
Source
Source
Uninstall is to maintain subtree information, installation is to maintain the node to the root node path information.
Bare-chain profile.
When I did it, I sent a chain-bottom.
Bare-chain profile.
When I did it, I sent a chain-bottom.
Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.
'NOI2015' 'BZOJ4196' Package Manager
I’ve been experimenting with running Linux on Macs for some time and – for a variety of reasons – needed to make a clean install of Ubuntu 14.04 LTS on my early 2008 24″ iMac. The Mac is now on its last legs, and Mac OS does not run very swiftly on it – my aim is to run Ubuntu on it, and use it as a computer for watching TV and DVDs, and for web browsing for guests.
So here’s the guide as to how to get Ubuntu up and running.
First, third prerequisities. First there is no way to do this without using the command line – accessible through the Terminal app in both Mac OS and Ubuntu. It is a matter of copying and pasting the right commands – there is rather little need to fully understand what is going on. Command line is needed very seldom once Ubuntu is running, but is required for the setup. Second, the solution to more or less any Ubuntu on a Mac problem can be found by Googling around (probably the way you found this blog entry!) Third, you’re going to need an empty USB stick (at least 2Gb capacity) to make this work.
Step 1 – Make a Ubuntu bootable USB stick while running Mac OS
This is simple – follow the instructions here. Note that step 3 is not very well described – you will end up with a file called “ubuntu.img.dmg” that you will need to rename “ubuntu.img” by just renaming the file in the Mac OS finder. Simply copy and paste the relevant commands into Terminal.
This is simple – follow the instructions here. Note that step 3 is not very well described – you will end up with a file called “ubuntu.img.dmg” that you will need to rename “ubuntu.img” by just renaming the file in the Mac OS finder. Simply copy and paste the relevant commands into Terminal.
Step 2 – Install rEFInd to allow dual booting
This presumes that you want to be able to boot your Mac in either Mac OS or Ubuntu, and to be able to switch between them. For this you will need a software utility called rEFInd. Its interface looks horrid, but it works. You can find instructions of how to install it from How To Geek here, and you can get the latest edition of the rEFInd software here. Before you start this connect your Mac to the internet with an ethernet cable – wifi will not work initially, and if you are connected to the internet then extra Ubuntu packages will be downloaded while you are installing it.
This presumes that you want to be able to boot your Mac in either Mac OS or Ubuntu, and to be able to switch between them. For this you will need a software utility called rEFInd. Its interface looks horrid, but it works. You can find instructions of how to install it from How To Geek here, and you can get the latest edition of the rEFInd software here. Before you start this connect your Mac to the internet with an ethernet cable – wifi will not work initially, and if you are connected to the internet then extra Ubuntu packages will be downloaded while you are installing it.
Please note that the final screen from the How To Geek piece can be inaccurate – for me there was no “install alongside Mac OS” option – I instead needed to choose “Something else” for the disk partitions, following the instructions here about how to set this up – putting / as the mount point for the main (60Gb size) ext4 partition, and 6Gb for swap. At the end of the installation process Ubuntu will ask you to reboot your machine.
Step 3 – Get the wifi working
Go to “System Settings” in the left apps bar in Ubuntu, then choose “Software & Updates”
Go to “System Settings” in the left apps bar in Ubuntu, then choose “Software & Updates”
Then click “Additional Drivers” and select the Broadcom driver (note this is how it looks on an iMac – the driver manufacturer might be different on other Macs, but the procedure will be the same). You may need to restart before the wifi works.
Step 4 – Software updates
Click the search button at the top left of the screen (shown here to the right), and type “Software Updater”. Run it, and it will download and update your installation.
Click the search button at the top left of the screen (shown here to the right), and type “Software Updater”. Run it, and it will download and update your installation.
Intuubuntu Mac Os Sierra
Step 5 – Further software
You can install GIMP (equivalent of Photoshop), Dropbox, Kaffeine (for DVB), and VLC (for DVD playback) from the “Ubuntu Software Center” in the left apps bar. Some other apps are more complex – follow these instructions for Skype (and note I needed to use the Skype 4.3 on 15.04 instructions – including the extra instructions to get this to work). To install the ownCloud sync client follow these instructions (needs command line).
You can install GIMP (equivalent of Photoshop), Dropbox, Kaffeine (for DVB), and VLC (for DVD playback) from the “Ubuntu Software Center” in the left apps bar. Some other apps are more complex – follow these instructions for Skype (and note I needed to use the Skype 4.3 on 15.04 instructions – including the extra instructions to get this to work). To install the ownCloud sync client follow these instructions (needs command line).
Step 6 – Peripherals
I have a Brother MFC-J4510DW printer-scanner – Brother’s linux support is a bit sketchy, but this series of commands did the job perfectly – just note that you need to find the local IP address of your scanner under Settings on the device itself. Note that Ubuntu defaults to letter size paper – you’ll need to set this to A4 in Printers in System Settings. I also use the pre-installed app Simple Scan for my scanning – works with either the flatbed scanner or the sheet feeder on the Brother device.
I have a Brother MFC-J4510DW printer-scanner – Brother’s linux support is a bit sketchy, but this series of commands did the job perfectly – just note that you need to find the local IP address of your scanner under Settings on the device itself. Note that Ubuntu defaults to letter size paper – you’ll need to set this to A4 in Printers in System Settings. I also use the pre-installed app Simple Scan for my scanning – works with either the flatbed scanner or the sheet feeder on the Brother device.
Step 7 – DVB and DVD playback
I have an old DVB TV tuner Stick – a Miglia TV Mini. This can be used with Ubuntu, using Kaffeine (see above) as the playback software and following this french language guide to get it installed (requires command line, and a restart). Extra installations are also required to allow Ubuntu to read movie DVDs – instructions for how to do this are here (command line and restart required) – and I use VLC for the playback.
I have an old DVB TV tuner Stick – a Miglia TV Mini. This can be used with Ubuntu, using Kaffeine (see above) as the playback software and following this french language guide to get it installed (requires command line, and a restart). Extra installations are also required to allow Ubuntu to read movie DVDs – instructions for how to do this are here (command line and restart required) – and I use VLC for the playback.
Step 8 – Tunnelbear VPN
Instructions to get Tunnelbear working on Linux are here. Works simply enough!
Instructions to get Tunnelbear working on Linux are here. Works simply enough!
Step 9 – number pad
I had the issue that numbers on the number pad on the right hand side of my Mac keyboard were not working, and worked as arrow keys instead. To get them to work press the “Clear” button as shown (varies between US and European keyboards) – this has the same function in Ubuntu as the Num Lock key on a PC keyboard.
I had the issue that numbers on the number pad on the right hand side of my Mac keyboard were not working, and worked as arrow keys instead. To get them to work press the “Clear” button as shown (varies between US and European keyboards) – this has the same function in Ubuntu as the Num Lock key on a PC keyboard.