LinkedIn

https://www.workatlinkedin.com/

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Solution

Trello

https://trello.com/jobs/ios-developer

How to apply…

Write code to find a 8 letter string of characters that contains only letters from

acdegilmnoprstuw

such that the hash(the_string) is

25377615533200

if hash is defined by the following pseudo-code:

Int64 hash (String s) {
    Int64 h = 7
    String letters = "acdegilmnoprstuw"
    for(Int32 i = 0; i < s.length; i++) {
        h = (h * 37 + letters.indexOf(s[i]))
    }
    return h
}

For example, if we were trying to find the 7 letter string wherehash(the_string) was 680131659347, the answer would be"leepadg".

To apply, please email jobs@trello.com with your solution as the first word in the subject line. Include any code you used to solve the problem as an attachment, and also send us a current resume in HTML, Plain Text, or PDF format. In the body of the email please explain why you would be a good fit for this job. Please also make sure to send links to app you have worked on.

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Solution

iOS Candidate Test - 1 - Objective-C

Challenge

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Solution - (Objective-C)