[Math][Python] Mixed radix, part II


There was power outage, but now it's OK.

How can you determine its moment? Time now is 19:42. Your home router's uptime is 3h53m.

>>> now=19*60+42   # 19:42
>>> uptime=3*60+53 # 3:53
>>> minutes_from_0000_router_started=now-uptime
>>> minutes_from_0000_router_started//60
>>> minutes_from_0000_router_started % 60

So it was 15:49 when router started.

(the post first published at 20221023.)

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