Here is my simplest C++ implementation for heap. The code is well-commented. /* Usage: heap Heap; Heap.clear(); Heap.insert(value); Heap.remove(); Heap.print(); */ struct heap { int myarray[NN+1]; // myarray to store the numbers as heap, 1 indexed int n; // the number of nodes in my array heap() { // constructor clear(); // we clear the … Read more
EDIT: Sorry, misread your question. I thought you only wanted to keep these values. Changed my code accordingly. list1 = [“13:00″,”13:10″,”13:20″,”13:30″,”13:40”] range_start = “13:10” range_end = “13:30” You can use list comprehension with the range condition: list1 = [x for x in list1 if not(range_start<=x<=range_end)] print(list1) You could also use filter on your list: list1=list(filter(lambda … Read more
The purpose of a hash function ist to retrieve a unique value for a given sequence (of bytes, characters, …). Therefore you need the length of the sequence, here with ‘strlen’. Without bit shift operator (<<) you would get the same result for the sequence ‘abc’ and ‘cba’. The xor operator (^) ‘scrambles”https://stackoverflow.com/”hashes’ the current … Read more
Just make an ArrayList of HashSets : ArrayList<HashSet<Integer>> list = new ArrayList<HashSet<Integer>>(); Then create HashSets, fill them, and put them in your ArrayList normally. HashSet<Integer> set = new HashSet<Integer>(); set.add(1); set.add(whateverIntValue); list.add(set); You can then get the nth HashSet of your list using list.get(n). solved How to make ArrayList of hashset in java? [closed]
Looks like This is a doubly linked list. iterator is a class. Node is also a class. x is the value to be inserted. Node is an aggregate that has three data members in the order value, prev, next, or alternatively has a constructor that takes three parameters in this order. p is a pointer … Read more
the only needed is list I assume you talk about collections, because lists without atomic values to put into lists are worthless. Still, there are lots of things lists don’t work well for. Of course, if you never (or so rarely elegance and performance doesn’t matter) need to [better choices in brackets]… Get a value … Read more
Object oriented + Inheritence can help you. I think you mean this structure: class Person {}; class Father : public Person {}; class Mother : public Person {}; class Child : public Father, public Mother {}; class Son : public Child {}; class Daughter: public Child {}; class Family { Father father; Mother mother; std::vector<Child> … Read more
Try this: db.collection.aggregate([ {$unwind: “$carrier”}, {$sort: {“carrier.name”: 1}}, {$group: {_id: “$_id”, carrier: {$push: “$carrier”}}} ]) Mongo Playground solved How to sort 1000000 elements array in alphanumeric in mongodb
Untested and probably not the best way class TimeWeekday { private $hour; private $minute; private $day; private $days = array(‘Monday’, ‘Tuesday’, ‘Wednesday’, ‘Thursday’, ‘Friday’, ‘Saturday’, ‘Sunday’); public function __construct($hour, $minute, $day) { $this->hour = $hour; $this->minute = $minute; $this->day = $day; } public function add($hours, $minutes, $days = 0) { $newMinutes = $this->minute + $minutes; … Read more
ACCEPT ELEMENTS IN A LINKED LIST IN ASCENDING ORDER,but the display function prints the smallest number instead of the whole linked list solved ACCEPT ELEMENTS IN A LINKED LIST IN ASCENDING ORDER,but the display function prints the smallest number instead of the whole linked list
If your a double loop that solves this problem breaks out of the loops as soon as a match is found, then both methods are similarly inefficient – they both require iterating over all of N elements M times, worst-case, where N is the length of one array and M is the length of the … Read more
It seems you are stuck because you are not familiar with the modelisation effort of going from the assignment statement to a solution design. This is a difficult task for everybody, not just beginners. But in your assignment you already got some guidelines. First you have to understand what do you get as input and … Read more
Arrays are allocated as single, large blocks of memory and entries are accessed by their indexes. The order of entries is fixed and they need have no particular identity apart from their position in the array. Other more complex data structures allow one to store objects identified and accessed using some sort of key. (Hash … Read more
What means dividable by the largest power of 2? xyz10000 is dividable by 10000 So a 1 fby 0s. Otherwise it would not be dividable. If there is no 1, the result is -1. For rotatation equivalence, you are looking for the longest sequence of 0s which might be situated at front and tail of … Read more
The binary heap data structure is usually drawn as a binary tree with certain properties, but is typically implemented using a plain array. The reason for this is that the array version uses less memory than the explicit binary tree and is a lot easier to manipulate. Consequently, the array A that you’re seeing described … Read more