[algogeeks] Re: An interesting numerical sequence problem

2007-09-06 Thread adak
I understood that the numbers in the sequences, would not be consecutive. I used consecutive numbers only because your example had used consecutive numbers. Glad you found an answer you liked, Sticker. Looking forward to reading your pdf file. --~--~-~--~~~---~--~--

[algogeeks] Re: An interesting numerical sequence problem

2007-09-06 Thread [EMAIL PROTECTED]
whoops, misunderstood the problem - I thought you meant the sum to the end of the sequence minus the sum to the end. My bad. Please ignore what I wrote above! On 6 Sep, 01:21, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote: > I know you've solved the problem, but I'm bored. Would this work? I

[algogeeks] Re: An interesting numerical sequence problem

2007-09-05 Thread [EMAIL PROTECTED]
I know you've solved the problem, but I'm bored. Would this work? I was never good at analysing time constraints Given an array n_1 n_2 ... n_k create another array called sums: n_1 n_1 + n_2 n_1 + n_2 + n_3 n_1 + n_2 + n_3 + ... n_k Take two indices min and max min = 0 max = f; while max < L

[algogeeks] Re: An interesting numerical sequence problem

2007-09-05 Thread Sticker
To Adak, The problem is that the numbers are not consecutive in values. So 3 can be got from 6 subtracts 2 and 7 is added in. I got an idea from a friend on how to find max/min values on queues in constant time with insertion and deletion in constant times as well. By applying that idea to here

[algogeeks] Re: An interesting numerical sequence problem

2007-09-05 Thread adak
Darn it, I meant to post "Sticker shock", but my typo left out the 't'. . Thanks for the clarification, Sticker. I believe your algo can be tweaked a bit by simply adjusting your substring's info when you need to "go back" to the start of a substring. That is, when you drop the 2 from the substr

[algogeeks] Re: An interesting numerical sequence problem

2007-09-04 Thread Sticker
To Adak, I must clarify the problem. When I mean consecutive numbers, I am not saying the values are consecutive, but the positions of the numbers. So in sequence of number {2, 4, 5, 7, 1, 23, 41, 12}, {5, 7, 1} is a segment of consecutive numbers. But {2, 5, 7} is not because 4 is missed between

[algogeeks] Re: An interesting numerical sequence problem

2007-09-04 Thread adak
Well, now you've gone and given me Sicker shock! :) Dilly of a problem, I must say!! I can't offer you a possible solution, but I'm curious what algorithms you've tried for this problem, and what was the resulting performance? I was thinking, something like: Scan the numbers, putting all sequ