count the distance between to strings in an array Ruby

Question

i have an array

line_one = ["flinders street", "richmond", "east richmond", "burnley", "hawthorn", "glenferrie"]

user_input1 = "flinders street"
user_input2 = "glenferrie"

how could I count the distance between the two strings? expected output 5.

Could any give value possibly exist more than once in your array? — user16452228
– user16452228, Commented Feb 13, 2022 at 2:45
Are these stations along a railway / bus line and you want to calculate the number of stops between two of them? Just asking for some context. — Stefan
– Stefan, Commented Feb 13, 2022 at 9:58
How do you define "distance"? Levenshtein distance? Jaccard? Cosine? — Jörg W Mittag
– Jörg W Mittag, Commented Feb 13, 2022 at 14:48
I see 8 strings in your code. 6 are stored in an array, and two are stored in separate variables. What is the distance between strings anyway? — user1934428
– user1934428, Commented Feb 14, 2022 at 8:07

user16452228 · Accepted Answer · 2022-02-13 03:00:45Z

4

The first thing that comes to mind:

line_one = ["flinders street", "richmond", "east richmond", "burnley", "hawthorn", "glenferrie"]

user_input1 = "flinders street"
user_input2 = "glenferrie"

(line_one.find_index(user_input1) - line_one.find_index(user_input2)).abs
#=>  5

answered Feb 13, 2022 at 3:00

user16452228

Sign up to request clarification or add additional context in comments.

1 Comment

Cary Swoveland Over a year ago

@engineersmnky, always test!

Rajagopalan · Accepted Answer · 2022-02-13 04:01:29Z

0

line_one = ["flinders street", "richmond", "east richmond", "burnley", "hawthorn", "glenferrie"]

Code

p (line_one.index("flinders street")...line_one.index("glenferrie")).count

output

edited Feb 13, 2022 at 4:01

answered Feb 13, 2022 at 3:37

Rajagopalan

6,0943 gold badges15 silver badges33 bronze badges

2 Comments

Cary Swoveland Over a year ago

That seems the same as (line_one.index("flinders street")...line_one.index("glenferrie")).count, but more importantly, what if user_input1 = "glenferrie"; user_input2 = "flinders street"?

Rajagopalan Over a year ago

I don't think they would be checking something like you say. and I modified the answer according to your suggestion, that looks correct.

Collectives™ on Stack Overflow

count the distance between to strings in an array Ruby

2 Answers 2

1 Comment

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

1 Comment

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related