
How to find the array length in unix shell?
20091211
How to find the array length in unix shell? Solutions $$ a=(1 2 3 4) $$ echo ${#a[@]} 4 Assuming bash: ~> declare a foo ~> foo[0]="foo" ~> foo[1]="bar" ~> foo[2]="baz" ~> echo ${#foo[*]} 3 So, ${#ARRAY[*]} e

What is the fastest way to find an array within another array in Java?
20100301
Is there any equivalent of String.indexOf() for arrays? If not, is there any faster way to find an array within another other than a linear search? Solutions Regardless of the elements of your arrays, I believe this is not

How to find an array from parent array
20100604
I am using below code to find an array inside parent array but it is not working that is retuning empty even though the specified key exits in the parent array $cards_parent = $feedData['BetradarLivescoreData']['Sport']['Category']['Tournament']['Mat

Programming Pearls: finding subarray with max sum
20100921
I was reading "programming pearls" book and stuck in some place. The (best) original solution for the problem (finding subarray with max sum) is: maxsofar = О maxendinghere = О for i = [0. n) { maxendinghere = max(maxendinghere + x[i], 0) maxsofar =

Find an array inside another larger array
20101015
I was recently asked to write 3 test programs for a job. They would be written using just core Java API's and any test framework of my choice. Unit tests should be implemented where appropriate. Although I haven't received any feedback at all, I supp

Jasmin Assembler VerifyError : Expecting to find object/array on stack
20110715
i get this error after "java testphase": C:\jasmin2.4>java testphase Exception in thread "main" java.lang.VerifyError: (class: testphase, method: main signature: ([Ljava/lang/String;)V) Expecting to find object/array on stack Could not find the m

Find an array for hasMany relationship
20110719
I have relations like this: Project has multiple Properties Property has multiple Rates On the project page, I want to display: The project, its properties and its latest rate So far, I have this: $this>set('rates', $this>Rate>find('all',

Find inner arrays in nested arrays
20111119
I have a nested array in PHP: array ( '0' => "+5x", '1' => array ( '0' => "+", '1' => "(", '2' => "+3", '3' => array ( '0' => "+", '1' => "(", '2' => array ( // I want to find this one. '0' => "+", '1' => "(", '2' =

Mongodb  Find Embedded Array in PHP
20120201
I have a collection called Forms: Inside that collection i have a sub collect called Form_Fields. So a document may look like this: } "_id": ObjectId("4f2984b1af06e80418000000"), "Form_Name": "Users", "Form_Fields": [ {"Field_Name": "First_Name"}, {"

Given a sequence a[1], a[2], , a[n], find an array b[1] < b[2] <  < b[n] such that a[1]b[1] + a[2]b[2] +  + a[n]b[n] is minimum
20150126
I've recently stumbled upon the following problem: Given a sequence a[1], a[2], ..., a[n], find an array b[1] < b[2] < ... < b[n] such that a[1]b[1] + a[2]b[2] + ... + a[n]b[n] is minimum. I have already come up with some observatio

Finding an array element by id returned by Active Record collection in rails
20091111
I am trying to synchronize members in the db with an external source My plan was to use the array collection in the active record class and on each update for a member found in the external source, I would remove that member entry in the array(if it

Finding Duplicate Array Elements
20100202
I've been struggling to create a function to essentially find all the indices of duplicate elements in a multidimensional array(unsorted), in this case a 5x5 array, and then using the indices found changing the parallel elements in a score array. Bu

Trying to find if array is full or not
20100210
I'm working with JQuery to determine if an array, built earlier, with a determined number of indexes, is full or not. When created, array looks like this : ,,,,,, All I want to do is find if every position is filled or not. So bascially, i'm trying t

Finding subarray matches in PHP
20100309
I have an array in the format: array ( '1' => array ( 'id' => '2', 'qty' => '4' ), '2' => array ( 'id' => '1', 'qty' => '1' ), '3' => array ( 'id' => '2', 'qty' => '3' ), '4' => array ( 'id' => '4', 'qty' => '6' )

Finding an array of ids while keeping the order with Rails and PostGreSQL
20101026
I have an array of ids of objects that I want to get from the database, but PostGreSQL returns them sorted by ids: Users.find([4, 1, 3]) => [User 1, User 3, User 4] I know I could sort them back like this: ids = [4, 3, 1] r = Users.find(ids) users

what is the way to find if array contain Arithmetic progression (sequence)
20101102
i have sorted array of numbers like 1, 4, 5 , 6, 8 what is the way to find out if this array contain Arithmetic progression (sequence) ? like in this example 4,6,8 or 4,5,6 remark : the minimum numbers in sequence is 3 Solutions

Finding which array contributes the maximum value for classification
20101108
Given 2 2x2 Numpy arrays, each element having a value between 0 and 1, I would like to find the one array of the 2 that has the maximum value, and do that comparison elementwise. For example, given: A = [[.6 .2] [.3 .4]] and B = [[.4 .5] [.7 .1]], I

Find the array interval with most values present in the array
20110121
Example Sorted Position vector [4, 5, 9, 30, 31, 32, 34, 40, 47] Interval length = 6 I would like to find the maximum number of values in any given interval of length 6. In the above mentioned example, the intervals will be [Array value  Array value

Find an array (byte[]) inside another array?
20110201
What is the simplest way to find a byte[] inside another byte[]? i have a feeling i could do it with linq but i dont know how. Note: I did a search with the [c#] and didnt find anything, i am surprised. Solutions Here's a s

javascript find in array
20110204
I have an array like this: var movies = [ { Name: "The Red Violin", ReleaseYear: "1998", Director: "François Girard" }, { Name: "Eyes Wide Shut", ReleaseYear: "1999", Director: "Stanley Kubrick" }, { Name: "The Inheritance", ReleaseYear: "1976", Dire

Getting an attribute directly from rails Class.find(:all) array of objects
20110214
I know that Person.find(:all) returns an array of Person objects but is there somehow I can just get 'name' property of all people in the Person table? Something like Person.find(:all).names Solutions Use :select to retriev

Finding FORTRAN array location, 4dimensional array
20110427
Hey guys, I have a question. If given a four dimensional array in FORTRAN, and told to find a location of a certain part of it (with a starting location of 200 and 4 bytes per integer). Is there a formula to find the location if is stored in rowmajo

find all array elements in another array
20110722
I have two arrays $ar = array("a","b","c"); $xy = array("a","b","c","d","e"); I have to find out each element in $ar in $xy. If all elements are in $xy then it should return true. I used in_array() but it returns true though one element is found. An

find character array length in Android
20110905
to get length of string String str=strLenData.toString(); int ipLen= str.length(); return ipLen; whatever be the value of strLenData, value of str= [[email protected] As a result, for every char[] I input, the length is shown as 11. I have to use the lengt

How to find character array length in Android
20110906
I had used the following code to find the length String str=strLenData.toString(); int ipLen= str.length(); return ipLen; ipLen would return 11 every time. whatever be the actual value of strLenData. when I call toString() function, value of str: "[C