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In this Golang article, we are going to reverse a stack using recursive and iterative method. A stack is a linear data structure that follows the Last-In-First-Out (LIFO) principle. Algorithm Step 1 − First, we need to import the fmt and strconv package. Step 2 − Create a stack structure with an item slice to store the stack elements. Step 3 − Now, define the functions, push(), pop(), peek(), isEmpty() and print() to perform the basic operations with the stack. Step 4 − push() adds the item to the end of the stack while pop() removes ... Read More
In this Golang article, we are going to find if there exists a pair of numbers in an array that add up to a given target sum using two pointer approach with iterative and optimized-iterative method. An array is a collection of elements of the same data type, arranged in a contiguous block of memory, and accessed using an index or a subscript. Using Two Pointer Approach With Iterative Method In this method, we will define a pairWithGivenSum() function using iterative approach that is used to find if there exists a pair of numbers in an array that add up ... Read More
In this Golang article, we are going to find longest subarray with a given sum using two-pointer approach with iterative and optimized-iterative method. An array is a collection of elements of the same data type, arranged in a contiguous block of memory, and accessed using an index or a subscript. Using Two-Pointer Approach With Iterative Method In this method, we will define a longestSubarray() function using iterative approach that is used to find longest subarray with a given sum using two-pointer approach. Algorithm Step 1 − First, we need to import the fmt package. Step 2 − Start the ... Read More
In this Golang article, we are going to remove duplicates from a sorted array using two-pointer approach with iterative and optimized-iterative method. An array is a collection of elements of the same data type, arranged in a contiguous block of memory, and accessed using an index or a subscript. A sorted array is an array in which the elements are arranged in a particular order, such as ascending or descending order. Using Two-Pointer Approach With Iterative Method In this method, we will define a duplicatesRemove() function using iterative approach that is used to remove duplicates from a sorted array using ... Read More
In this Golang article, we are going to find the maximum product of two numbers in an array using two pointer approach with iterative and optimized-iterative method. An array is a collection of elements of the same data type, arranged in a contiguous block of memory, and accessed using an index or a subscript. Using Two Pointer Approach With Iterative Method In this method, we will define a productMax() function using iterative approach that is used to find the maximum product of two numbers in an array using two pointer approach. Algorithm Step 1 − First, we need to ... Read More
In this Golang article, we are going to find if a given subarray exists in a given array using two pointer approach with iterative and optimized-iterative method. An array is a collection of elements of the same data type, arranged in a contiguous block of memory, and accessed using an index or a subscript. Syntax func isSubarrayPresent(arr []int, sub []int) bool {…} The isSubarrayPresent() function is used to find if a given subarray exists in a given array using two pointer approach. It takes array and sub-array as its argument. Algorithm Step 1 − First, we need to ... Read More
In this Golang article, we are going to find the depth of a node in a binary search tree using recursion and iterative method. The binary search tree is a useful data structure for efficient searching, insertion, and deletion of elements. A binary search tree (BST) is a type of binary tree where every node has at most two children, commonly referred to as the left child and the right child. Syntax func (n *Node) Depth(value int) int {…} The Depth() function is used to find the depth of a node in a binary search tree. It takes an ... Read More
In this Go language article, we will write programs to find intersection of two arrays using two pointer approach. Intersection means similarity or most common and intersection of two arrays refers to the similar elements between two arrays. Syntax func make ([] type, size, capacity) The make function in go language is used to create an array/map it accepts the type of variable to be created, its size and capacity as arguments func append(slice, element_1, element_2…, element_N) []T The append function is used to add values to an array slice. It takes number of arguments. The first argument ... Read More
In this article, we are going to learn how to use internal Golang functions like make, append, and range to implement depth first search. Depth first search is a traversal algorithm used for graph and tree data structures. It explores all the nodes of the graph recursively. Syntax func make ([] type, size, capacity) The make function in go language is used to create an array/map it accepts the type of variable to be created, its size and capacity as arguments func append(slice, element_1, element_2…, element_N) []T The append function is used to add values to an array ... Read More
In this article, we are going to learn how to use various internal time function in Golang that will get the individual components of the current date-time. Now function from the time package will be used to get the current date-time and the individual components of date-time are calculated using the individual components as methods. Syntax func Now() Time The Now() function is defined in time package. This function generates the current local time. To use this function, we have to first import the time package in our program. time.Month() This method belongs to the time package. It ... Read More