The code has been vastly simplified, but should serve to illustrate my question.
S = ('A1RT', 'BDF7', 'CP09') for s in S: if is_valid(s): # very slow!415 kata lagi
The experience of using a computer today is nothing like it was a few decades ago. The sheer speed of computer systems has nearly doubled each year; transistors, once as big as a pencil eraser, have become so small that billions could fit on a fingernail. 1.169 kata lagi