Category: Graphs

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Determine the order of Tests when tests have dependencies on each other

Objective: You are working on a project where QA team has automated set of test cases for the project, but these test cases have to be executed in a specific order since test cases...

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Max Flow Problem – Ford-Fulkerson Algorithm

Objective: Given a directed graph that represents a flow network involving source(S) vertex and Sink (T) vertex.  Each edge in the graph has an individual capacity which is the maximum flow that edge allows....

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Find the nearest building which has bike | Find nearest specific vertex from source in a graph.

Objective: Given a matrix (NxN) which represents the buildings in community. You are in a building and you need a bike to travel.  There are few buildings in community which has bikes which you...

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Max Flow Problem – Introduction

Max Flow Problem- Maximum flow problems find a feasible flow through a single-source, single-sink flow network that is maximum. This problem is useful for solving complex network flow problems such as the circulation problem. The maximum value...

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Dijkstra Algorithm Implementation – TreeSet and Pair Class

Earlier we have seen what Dijkstra algorithm is is and how it works. In this article we will see its implementation using adjacency list and TreeSet. Example: Implementation – Adjacency List and Priority Queue...

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Dijkstra’s – Shortest Path Algorithm (SPT) – Adjacency List and Priority Queue – Java Implementation

Earlier we have seen what Dijkstra’s algorithm is and how it works. In this article we will see its implementation using adjacency list and Priority Queue. Prerequisites: Adjacency List Priority Queue Dijkstra’s Algorithm basics...

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Dijkstra’s – Shortest Path Algorithm (SPT) – Adjacency List and Min Heap – Java Implementation

Earlier we have seen the basics of Dijkstra algorithm. In this article we will see its implementation using adjacency list and Min Heap. We strongly recommend reading the following articles Dijkstra algorithm and how...

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Dijkstra’s – Shortest Path Algorithm (SPT) – Adjacency Matrix – Java Implementation

Earlier we have seen what Dijkstra’s algorithm is and how it works. In this article we will see its implementation using adjacency matrix. We strongly recommend reading – Dijkstra algorithm and how it works....

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Djkstra’s – Shortest Path Algorithm (SPT)

What is Dijkstra’s algorithm? Dijkstra algorithm is a greedy algorithm. It finds a shortest path tree for a weighted undirected graph. This means it finds a shortest paths between nodes in a graph, which may represent, for example, road networks For a given...

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Kruskal’s Algorithm – Minimum Spanning Tree (MST) – Complete Java Implementation

What is Kruskal Algorithm? Kruskal’s algorithm for finding the Minimum Spanning Tree(MST), which finds an edge of the least possible weight that connects any two trees in the forest It is a greedy algorithm. It...

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