CompetiTest.nvim is a Neovim plugin for Competitive Programming: it can manage and check testcases, download problems and contests from online judges and much more
Saving output to file will enable us to compare test.out and test.ans with custom code. E.x: floating compare, ignore extra spaces, see https://github.com/Aeren1564/Tools for example
g++ sol.cpp < 1.in > 1.out 2> 1.err
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