Hi,
I think this should be something like this (below). Mind line wraps,
especially in the solution for problem 5.
My solution for problem 5 is much easier but also less elegant than the
Java solution on the website. If anyone has better (faster or easier)
solutions, especially for problem 5, I'd like to see them.
Solutions:
// sorry, but I really can't care about the 3 different methods.
// They're silly.
function problem1
put sum(myGivenList)
end problem1
// piece of cake for LC but in PHP and C++ also not that difficult
on problem2
repeat with x = 1 to number of items of myList1
put item x of myList1,item x of myList2 & comma after myNewList
end repeat
delete last char of myNewList
end problem2
// doh
function problem3
put "0,1" into myList
repeat 98
put comma & item -2 of myList + item -1 of myList after myList
end repeat
return myList
end problem3
// easy
function problem4
put "50,2,1,9" into myList
sort items of myList numeric descending by char 1 of each
replace comma with empty in myList
return myList
end problem4
/* I would rather do this as a recursive function, avoiding the
multiple repeat loops and allowing for an arbitrary number of digits
(e.g. 123 or 1234 or 1468 etc) but that seems to take too much time */
function problem5
put "+-o" into signs
repeat with x1 = 1 to 3
repeat with x2 = 1 to 3
repeat with x3 = 1 to 3
repeat with x4 = 1 to 3
repeat with x5 = 1 to 3
repeat with x6 = 1 to 3
repeat with x7 = 1 to 3
repeat with x8 = 1 to 3
put 1 into myLine
repeat with c = 2 to 9
put char
value("x"&c-1) of signs & c after myLine
end repeat
replace "o" with empty in
myLine
do "put" && myLine &&
"into mySum"
if mySum is 100 then put
myLine && mySum & cr after myList
end repeat
end repeat
end repeat
end repeat
end repeat
end repeat
end repeat
end repeat
return myList
end problem5
--
Best regards,
Mark Schonewille
Economy-x-Talk Consulting and Software Engineering
Homepage: http://economy-x-talk.com
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On 5/9/2015 23:49, Geoff Canyon wrote:
https://blog.svpino.com/2015/05/07/five-programming-problems-every-software-engineer-should-be-able-to-solve-in-less-than-1-hour
Interesting blog post, made doubly interesting because when the author
posted his solutions to problems 4 and 5, one of his solutions was
incorrect. So I guess he won't be hiring himself...
In any case, I thought they were interesting so I gave it a shot. I
finished in something like 40 minutes, but I think some of my solutions are
more expedient than I would like.
I'll post the code in replies, so don't read those if you want to try
yourself.
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