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Grokking the Coding Interview Patterns

Solution: Two City Scheduling

Explore the greedy technique to solve the Two City Scheduling problem by minimizing total costs. Understand how sorting candidates based on cost differences allows you to assign half to each city efficiently. This lesson guides you through the problem constraints, algorithm steps, and complexity analysis, providing a clear method for cost optimization.

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Statement

A recruiter plans to hire n\textbf{\textit{n}} people and conducts their interviews at two different locations of the company. He evaluates the cost of inviting candidates to both these locations. The plan is to invite 50% at one location, and the rest at the other location, keeping costs to a minimum.

We are given an array, costs, where costs[i]=[aCosti,bCosti]costs[i] = [aCost_i, bCost_i], the cost of inviting the ithi^{th} person to City ...