AlwaysBTryin questions

AlwaysBTryin answers

• Using command line to replace text in all files in folder?
• A fast way to find connected component in a 1-NN graph?
• If we know a CFG only generates regular language, can we get the corresponding regular expression?
• Compare strings based on alphabetical ordering
• Returning records from the last 3 months only in MySQL
• shuffle or not when splitting train and test set