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This was a programming assignment as part of a job interview. The goal is to handle a simple package dependency manager, perhaps similar to Bundler. Dependencies are maintained, installed as needed, and removed when no longer needed unless those same packages were installed explicitly Commands: DEPEND parent child1 [child2...] parent depends on children INSTALL package installs the given package and those on which it depends REMOVE package removes the given package and those on which it depends, unless they are required by other packages or were installed explicitly LIST lists installed packages END ends execution and exits Example Input DEPEND ALFA BRAVO CHARLIE DEPEND BRAVO CHARLIE DEPEND DELTA BRAVO CHARLIE DEPEND ECHO BRAVO FOXTROT INSTALL CHARLIE INSTALL ALFA INSTALL GOLF REMOVE CHARLIE INSTALL ECHO INSTALL DELTA LIST REMOVE ALFA REMOVE CHARLIE REMOVE DELTA REMOVE CHARLIE INSTALL CHARLIE REMOVE BRAVO REMOVE ECHO REMOVE BRAVO LIST END Output for the Example Output DEPEND ALFA BRAVO CHARLIE DEPEND BRAVO CHARLIE DEPEND DELTA BRAVO CHARLIE DEPEND ECHO BRAVO FOXTROT INSTALL CHARLIE Installing CHARLIE INSTALL ALFA Installing BRAVO Installing ALFA INSTALL GOLF Installing GOLF REMOVE CHARLIE CHARLIE is still needed. INSTALL ECHO Installing FOXTROT Installing ECHO INSTALL DELTA Installing DELTA LIST FOXTROT ECHO DELTA CHARLIE GOLF BRAVO ALFA REMOVE ALFA Removing ALFA REMOVE CHARLIE CHARLIE is still needed. REMOVE DELTA Removing DELTA REMOVE CHARLIE CHARLIE is still needed. INSTALL CHARLIE CHARLIE is already installed. REMOVE BRAVO BRAVO is still needed. REMOVE ECHO Removing ECHO Removing FOXTROT Removing BRAVO REMOVE BRAVO BRAVO is not installed. LIST CHARLIE GOLF END
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short programming test - dependency manager
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