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Writing a factorial function in C

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The C language was created shortly after the Unix operating system in the 1970's, so that the new operating system could be written in a simple and efficient programming language, instead of assembly. Portability soon became a motivation too: to be able to run Unix and applications in heterogeneous systems caused the operating system and the C programming language to have a profound and long lasting impact on computer systems. Simplicity, efficiency and portability, built into the language and transformed into programming philosophy, came with a price...

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Getting started with C programming: a lightning-fast start for absolute beginners

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This tutorial will guide you through writing the "Hello World" program in the C programming language. You'll use Unix-style terminal emulators and command-line tools to execute commands, Linux-style package managers to install programs and libraries, the GNU nano text editor to write C code, the meson build system to build executable programs and the Gtk+ library to write portable, cross-platform graphical programs.

Instructions for three operating systems are provided: macOS, Ubuntu Linux and Windows...

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