Algorithm · Atlassian · Medium
A digital subscription platform offers three different monthly plans, each priced separately. A customer may begin, change, or terminate a plan on any date in the calendar, and every change applies immediately. The amount due is accumulated day by day. On a day when a plan is active, its daily amount $$P$$ is calculated as $$P = M / N$$, with $$M$$ representing that plan's monthly price and $$N$$ representing the number of days in that day's month. You receive the complete…
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