This is my first year Algorithms course project that i wrote with C using allegro 4.2 library.
To open this project(for windows on VS), you need to download allegro-msvc10-4.2.3.zip from here (direct link)
After download Allegro library, extract the file and you will see 3 folder namely bin,include,lib You need the copy these folders to 2 different places.
1-)Copy bin and include folders to VC folder that is located C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC, and copy lib folder to Microsoft Visual Studio 14.0 folder(go back 1 folder from VC).
2-)There are 3 dll files in bin folder, if your system is x64, copy these dll files to C:\Windows\SysWOW64 or if your system is x86, copy dll files to C:\Windows\system32.
Last step before run the program.
Open Visual Studio and follow the steps below Project->Properties->Configuration Properties->Linker->Input edit to Additional Dependencies and add alleg.lib. After that you can run the project.
To run the project in other platforms you can check here