Logger Rate Limiter
operations=[{"timestamp":1,"message":"foo"},{"timestamp":2,"message":"bar"},{"timestamp":3,"message":"foo"},{"timestamp":8,"message":"bar"},{"timestamp":10,"message":"foo"},{"timestamp":11,"message":"foo"}]
algomaster.io
Step:Start: track each message's nextAllowed time in a hash map. A message may print again only when timestamp >= nextAllowed.