Lazy Optimization Before solving a problem, learn to apply lazy optimization. Don't just follow your intuition or the standard process. First, observe from the

Lazy Optimization Before solving a problem, learn to apply lazy optimization. Don't just follow your intuition or the standard process. First, observe from the upstream or downstream of the problem to see if there's a better solution. Sometimes, just making a few simple changes upstream or downstream can solve the problem cleanly and perfectly.