# The Fastest Drive, Not the Fewest Roads: Dijkstra's Algorithm

Find the fastest route through a town where every road takes a different number of minutes: why counting roads, always taking the shortest next road and trying every route all fail, and the algorithm a GPS uses instead, Dijkstra's algorithm, made fast by a priority queue.

![Cheat sheet: The Fastest Drive, Not the Fewest Roads: Dijkstra's Algorithm](https://fsdtrainingmedia.blob.core.windows.net/public/images/2026/11/f02e82f42c0a42488f3ed0058d82b1df.webp)

- Category: Data Structures
- Level: Freelancer
- Tags: Breadth-First Search, data structures, Dijkstra's Algorithm, Shortest Path, Weighted Graph
- Updated: November 3, 2026

Source: https://www.ask-codey.com/cheat-sheets/ds-shortest-paths-cheat-sheet