Implement occurrences(start, rule, after, count) returning the next count ISO dates strictly after after for a recurring event starting on start (the start date itself is the first occurrence if it qualifies). rule is a dict:
{"freq": "daily", "interval": n}: every n days from start{"freq": "weekly", "interval": n, "weekdays": [0, 2]}: on the listed weekdays (Monday = 0) of every n-th week, where weeks are counted from the Monday of the start date's week; days before start don't count{"freq": "monthly", "interval": n}: the start date's day-of-month every n months; months that don't have that day are skippedUnlock this and every premium problem across all tracks — plus hidden-test grading, advanced AI engineering modules and new content every week.
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