permitted. Use loops instead when things get more compli- cated. Yes: result = [] for x in range(10): for y in range(5): 6 if x * y > 10: result.append((x, y)) for x in xrange(5): for y in xrange(5): if None) squares = [x * x for x in range(10)] eat(jelly_bean for jelly_bean in jelly_beans if jelly_bean.color == 'black') No: result = [(x, y) for x in range(10) for y in range(5) if x * y > 10] return ((x

pointer or smart pointer with calls to new commonly falls into this category, as does use of auto in a range-based loop over a container whose type is spelled out nearby. • (Allowed) When the type doesn’t matter used for anything other than equality comparison. • (Encouraged) When iterating over a map with a range-based loop (because it is often assumed that the correct type is pair whereas it They may have a space // before the semicolon, but this is rare. for ( ; i < 5 ; ++i) { ... // Range-based for loops always have a space before and after the colon. for (auto x : counts) { ... 79 }

ranges of values  Don’t hide important information Experiments and Result Presentation Don’t limit range to make you look good If there are multiple relevant parameters, show them all For log-scale

Viktor Leis, David G. Andersen, Michael Kaminsky, Kimberly Keeton, Andrew Pavlo: SuRF: Practical Range Query Filtering with Fast Succinct Tries. SIGMOD 2018  #12.3 Viktor Leis, Alfons Kemper, Thomas