## 3 Ways to Implement Queue in Python

Summary: In this tutorial, we will learn three different ways to implement queue data structure in Python. A queue is a collection of elements that maintains a sequence in which…

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# Data Structures & Algorithms

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3 Ways to Implement Queue in Python

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Difference between char[] and char*

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Why do Shortest Path Algorithms fail in Graphs with Negative Cycle?

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Why doesn’t Dijkstra work with negative weights?

Articles related to data structures and algorithms problems, arrays, stack, queue, heap, tree, graph, matrix, and other advanced topics.

Summary: In this tutorial, we will learn three different ways to implement queue data structure in Python. A queue is a collection of elements that maintains a sequence in which…

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April 2, 2022

Summary: In this tutorial, we will learn what is the difference between char[] and char* in the C/C++ programming languages. We as programmers often use char[] and char* to store…

June 8, 2021

The shortest path algorithms such as Dijkstra and Bellman-Ford algorithm don't give the right results when there's a negative cycle in the graph. Dijkstra's AlgorithmBellman-Ford AlgorithmGraph with Negative EdgeFailsPassGraph with…

December 11, 2020

Dijkstra's algorithm is the most popular algorithm to solve single-source shortest path problems. It can find the shortest path from a given source to all other vertices in a given…

December 6, 2020