We are given an array of, let's say, arr[] of integer values of any respective size and the task is to calculate the count of the number of distinct pairs available in a given array whose sum also exists in the same array.Arrays a kind of data structure that can store a fixed-size sequential collection of elements of the same type. An array is used to store a collection of data, but it is often more useful to think of an array as a collection of variables of the same type.Points to rememberA pair will be counted once with the ... Read More

We are given two arrays, let's say arr_1[] and arr_2[] both containing integer values and the task is to calculate the count of elements that are divisible by at least one element in another array. It means there we need to count those elements having at least one factor in the second array which is arr_2.Arrays a kind of data structure that can store a fixed-size sequential collection of elements of the same type. An array is used to store a collection of data, but it is often more useful to think of an array as a collection of variables ... Read More

We are given an array of any size containing integer elements and the task is to calculate the count of pairs in an array such that one element of a pair divides another element of a pair.Arrays a kind of data structure that can store a fixed-size sequential collection of elements of the same type. An array is used to store a collection of data, but it is often more useful to think of an array as a collection of variables of the same type.For ExampleInput − int arr[] = {1, 2, 3, 6} Output − count is 4Explanation − ... Read More

We are given an array containing integer elements and two numbers start and end and the task is to calculate the count of elements present between start and end in an array.Arrays a kind of data structure that can store a fixed-size sequential collection of elements of the same type. An array is used to store a collection of data, but it is often more useful to think of an array as a collection of variables of the same type. If the start element is occurring multiple times then we will consider the first occurrence of the start element and ... Read More

We are given an array of any size containing integer elements and the task is to calculate the count of elements that are present in the first array but not in the second array..Arrays a kind of data structure that can store a fixed-size sequential collection of elements of the same type. An array is used to store a collection of data, but it is often more useful to think of an array as a collection of variables of the same type.For exampleInput− int arr_1[] = {1, 2, 3, 4}       Int arr_2[] = {1, 5, 6, 7, ... Read More

In this article, we have an unsorted array of integers having repetitive elements. Our task is to count the distinct elements in the given array in C++. Example Here is an example of counting the unique number in the given array: Input: array = {4, 2, 32, 26, 57, 52, 40, 2, 57, 40, 33} Output: Distinct elements in the array: 8 Here is a list of approaches for counting distinct elements in the given array: Using Nested for Loop Using Sorting ... Read More

We are given with a string of any length and the task is to calculate the count and print the alphabets in a string having ASCII value not in the range [l, r]ASCII value for character A-Z are given belowABCDEFGHIJKLMNOPQRS65666768697071727374757677787980818283TUVWXYZ84858687888990ASCII value for characters a-z are given belowabcdefghijklmnopqrs979899100101102103104105106107108109110111112113114115tuvwxyz116117118119120121122For ExampleInput − String str = “point       First = 111, Last = 117 Output − characters not in the given range are: i, n       Count is: 2Explanation − since i and n don't lies in the range of [111, 117] these characters will be counted.Input − String str ... Read More

We are given with a string of any length and the task is to calculate the count and print the alphabets in a string having ASCII value in the range [l, r]ASCII value for character A-Z are given belowABCDEFGHIJKLMNOPQRS65666768697071727374757677787980818283TUVWXYZ84858687888990ASCII value for characters a-z are given below −abcdefghijklmnopqrs979899100101102103104105106107108109110111112113114115tuvwxyz116117118119120121122For ExampleInput − String str = “point       First = 111, Last = 117 Output − characters in the given range are: p, o , t       Count is: 3Explanation − since p, o and t lies in the range of [111, 117] these characters will be counted.Input − String ... Read More

We are given with a binary tree and the task is to calculate the count of non-leaf nodes available in a binary tree.Binary Tree is a special data structure used for data storage purposes. A binary tree has a special condition that each node can have a maximum of two children. A binary tree has the benefits of both an ordered array and a linked list as search is as quick as in a sorted array and insertion or deletion operation are as fast as in linked list. Non-leaf nodes are also known as parent nodes as they have more ... Read More

We are given a circular linked list with the nodes and the task is to calculate the count of nodes present in a circular linked list.Circular Linked List is a variation of Linked list in which the first element points to the last element and the last element points to the first element. Both Singly Linked List and Doubly Linked List can be made into a circular linked list.In the below program, we are implementing a singly linked list as a circular linked list to calculate the count of nodes in that.For ExampleInput − nodes-: 20, 1, 2, 3, 4, ... Read More