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An algorithm is a sequence of well-defined steps that defines an abstract solution to a problem. Use this tag when your issue is related to design and analysis of algorithms.

2 votes
1 answer
853 views

Perform Dijkstra on graph with negative edges by adding a big enough constant to every edges

I know that this doesn't work because shortest path with a lot of edges may have bigger weight than a longer path with less edges. But what if, you keep track of the edges that our current weight path …
Tienanh Nguyen's user avatar
1 vote
1 answer
3k views

given a weighted, directed graph. Give an O(VE)-time algorithm to find, for each vertex v∈V,...

This is the 24.1-5 question in CLRS. I'm having a hard time understanding the questions and also how to solve it. δ(u,v) is defined as the shortest path weight from u to v if there exist a path from u …
Tienanh Nguyen's user avatar