In the Dijkstra algorithm, when a shorter path to a neighbor is found, the neighbor's priority in the priority queue should be updated regardless of whether it is already present in the queue. In this ...

Problem: Currently, the Java algorithm template does not include an efficient implementation of the fast exponentiation algorithm (also known as exponentiation by squaring). This algorithm is ...

The original version of this story appeared in Quanta Magazine. If you’ve been making the same commute for a long time, you’ve probably settled on what seems like the best route. But “best” is a ...

If you’ve been making the same commute for a long time, you’ve probably settled on what seems like the best route. But “best” is a slippery concept. Perhaps one day there’s an accident or road closure ...

Abstract: Dijkstra algorithm is a single-source shortest path algorithm, and the result is the shortest distance from the source node to the destination node. In the parking guidance process, the ...

Coin Mentioned I’ve been reading Grokking Algorithms, which I recommend to anyone new to algorithms. It’s basically the introduction I wish I had a few months ago! The examples in the book are written ...