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C is a general-purpose computer programming language used for operating systems, games, and other high performance work and is clearly distinct from C++. It was developed in 1972 by Dennis Ritchie for use with the Unix operating system.

3 votes

Match blood types in C

Forget about what they asked for, and think about what it really means. Having a match means that at least one of the donor strings contains no characters that aren't in the recipient string, except …
Ray Butterworth's user avatar
5 votes

Print input lines longer than 80 characters in C

That's too complicated a solution. It also not only imposes an arbitrary limit on the maximum possible input line length, it fails to check that the input doesn't exceed this limit. 80 is the only s …
Ray Butterworth's user avatar
5 votes

Rotate square matrix clockwise by 90degrees

This is C using the Original K&R C. The biggest drawback to using that is that you don't get the benefit of typechecking, which was introduced in C89. …
Ray Butterworth's user avatar
3 votes

My own array implementation in C

Is it a good starting point? A starting point for what? The only obvious purpose for code like this is to provide error checking for accidentally indexing out of bounds, but this code doesn't do that. …
Ray Butterworth's user avatar