I want to implement the dijkstra algorithm and have to set each note at the beginning to infinity.
I would like to know, if there is any function in Java which makes it easy.
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2First show us what you have implemented. – kk. Jun 08 '17 at 12:40
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1If you're talking about distance, simply take -1. A valid distance can't be <1 so you can easily identify -1 as "unseen". – Felix Jun 08 '17 at 12:42
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Or use `null` and store all distance in `Long` objects – OneCricketeer Jun 08 '17 at 12:45
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@rollback In dijkstra, we initialize the distance array with positive infinity. – Sanket Makani Jun 08 '17 at 12:46
1 Answers
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Double.POSITIVE_INFINITY if you are using Double to store your data.
Also note that this is not a number, which is nice depending on what you want to do. Double supports this concept.
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