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The article announces the results of the 2015 Underhanded C Contest, a programming contest focused on writing deceptively malicious C code, with this year's challenge involving nuclear verification and highlighting NaN poisoning attacks.
Grid Programs proposes a two-dimensional grid programming model where instructions are placed on a grid, and a pointer controls the flow by moving up, down, left, and right, without the need for variable names. It has been proven Turing complete, opening up new design spaces for visual programming, cellular automaton hardware, and code obfuscation.