<ul><li>The author describes their approach to solving a problem involving meeting intervals and determining the minimum number of rooms needed.</li><li>They visualized the problem by plotting out the meeting intervals on a timeline and realized that overlapping intervals required additional rooms.</li><li>Sorting the intervals by start time helped identify overlaps and determine if a new room was needed or if a meeting could fit into an already occupied room.</li><li>The author shares their progress in solving the problem, completing it in 29 minutes and feeling a sense of improvement and confidence.</li></ul>

Day 20 of Cracking GOOOOGLE

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