Restaurant Customers | CSES Problem Solution | Prefix Sum & Sweep Line Algorithm
13:09
YouTubeBharat Coding Club
Restaurant Customers | CSES Problem Solution | Prefix Sum & Sweep Line Algorithm
In this video, we solve the Restaurant Customers problem from CSES Problem Set step by step. We begin with the core idea using prefix sums (+1 / -1) to track customer entry and exit, then discuss why a normal array approach fails due to large time constraints (up to 1e9). Finally, we apply an efficient Sweep Line Algorithm using a map to ...
3 days ago
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