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Grokking the Coding Interview Patterns

Solution: Cheapest Flights Within K Stops

Understand how to solve the cheapest flights within a stop limit problem by applying dynamic programming. Learn to use a Bellman–Ford style algorithm to efficiently determine the minimum travel cost with at most k stops, managing cost arrays and iterative relaxation for route optimization.

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Statement

You are given n cities, numbered from 00 to n −1- 1 connected by several flights. You are also given an array flights, where each flight is represented as flights[i] = ...