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Go Programming Articles
Page 6 of 86
Golang Program to convert an integer into binary representation
ExamplesFor example, n = 1 (Binary Representation of 1: 1)For example, n = 5 (Binary Representation of 5: 101)For example, n = 20 (Binary Representation of 5: 10100)For example, n = 31 (Binary Representation of 31: 11111)Approach to solve this problemStep 1 − Define a method that accepts an integer, n.Step 2 − Convert n into binary representation using golang packageStep 3 − Return the converted binary representation.Examplepackage main import ( "fmt" "strconv" ) func IntegerToBinary(n int) string { return strconv.FormatInt(int64(n), 2) } func main(){ n := 1 fmt.Printf("Binary Representation of %d is %s.", n, ...
Read MoreGolang Program to define a singly linked list.
ExamplesApproach to solve this problemStep 1 − Let’s define a structure of the node.Step 2 − Make the Linked List such that the previous node would store the address of the next node.Examplepackage main import "fmt" type Node struct { value int next *Node } func NewNode(value int) *Node{ var n Node n.value = value n.next = nil return &n } func TraverseLinkedList(head *Node){ fmt.Printf("Linked List: ") temp := head for temp != nil { fmt.Printf("%d ", temp.value) temp = temp.next } } func main(){ head := NewNode(30) head.next = NewNode(10) head.next.next = NewNode(40) head.next.next.next = NewNode(40) TraverseLinkedList(head) }OutputLinked List: 30 10 40 40
Read MoreGolang Program to count the number of nodes in a linked list.
ExamplesApproach to solve this problemStep 1 − Define a method that accepts the head of the linked list.Step 2 − Initialize a variable, count := 0.Step 3 − Iterate the given linked list till it reaches the last node.Step 4 − Increase the count by 1 in the loop.Step 5 − Return count.Examplepackage main import "fmt" type Node struct { value int next *Node } func NewNode(value int, next *Node) *Node{ var n Node n.value = value n.next = next return &n } func CountNodes(head *Node){ fmt.Printf("Input Linked List is: ") count ...
Read MoreGolang Program to reverse a given linked list.
ExamplesApproach to solve this problemStep 1 − Define a method that accepts the head of a linked list.Step 2 − If head == nil, return; else, call ReverseLinkedList, recursively.Step 3 − Print head.value at the end.Examplepackage main import "fmt" type Node struct { value int next *Node } func NewNode(value int, next *Node) *Node{ var n Node n.value = value n.next = next return &n } func TraverseLinkedList(head *Node){ fmt.Printf("Input Linked List is: ") temp := head for temp != nil { fmt.Printf("%d ", temp.value) ...
Read MoreGolang Program to delete the first node from a linked list.
ExampleApproach to solve this problemStep 1 − Define a method that accepts the head of a linked list.Step 2 − If head == nil, return the head.Step 3 − Go to the next node and return the updated head.Examplepackage main import "fmt" type Node struct { value int next *Node } func NewNode(value int, next *Node) *Node{ var n Node n.value = value n.next = next return &n } func TraverseLinkedList(head *Node){ temp := head for temp != nil { fmt.Printf("%d ", temp.value) temp = temp.next ...
Read MoreGolang Program to delete the last node from a linked list.
ExamplesApproach to solve this problem −Step 1 − Define a method that accepts the head of a linked list.Step 2 − If head == nil, return the head.Step 3 − Go to the next node and return the updated head.Examplepackage main import ( "fmt" ) type Node struct { value int next *Node } func NewNode(value int, next *Node) *Node{ var n Node n.value = value n.next = next return &n } func TraverseLinkedList(head *Node){ temp := head for temp != nil { fmt.Printf("%d ", temp.value) ...
Read MoreGolang Program to update the first node value in a linked list.
ExampleApproach to solve this problemStep 1 − Define a method that accepts the head of a linked list.Step 2 − If head == nil, return the head.Step 3 − Else, update the first node value to 29.Examplepackage main import "fmt" type Node struct { value int next *Node } func NewNode(value int, next *Node) *Node{ var n Node n.value = value n.next = next return &n } func TraverseLinkedList(head *Node){ temp := head for temp != nil { fmt.Printf("%d ", temp.value) temp = temp.next } ...
Read MoreGolang Program to update the last node value in a linked list.
ExampleApproach to solve this problemStep 1 − Define a method that accepts the head of a linked list.Step 2 − If head == nil, return the head.Step 3 − Else, update the last node value to 41.Examplepackage main import "fmt" type Node struct { value int next *Node } func NewNode(value int, next *Node) *Node{ var n Node n.value = value n.next = next return &n } func TraverseLinkedList(head *Node){ temp := head for temp != nil { fmt.Printf("%d ", temp.value) temp = temp.next } ...
Read MoreGolang Program to insert a new node after the Kth node.
ExamplesAdd node 15 after 10 value node.Approach to solve this problemStep 1 − Define a method that accepts the head of a linked list.Step 2 − If head == nil, return the head.Step 3 − Iterate the given linked list.Step 4 − If temp.value is 10, then add the node 15 as the next node.Step 5 − If node value 10 is not found, return the head without adding any node.Examplepackage main import "fmt" type Node struct { value int next *Node } func NewNode(value int, next *Node) *Node{ var n Node n.value = value ...
Read MoreGolang program to delete the node after the Kth node.
ExamplesDelete node after 10 value node.Approach to solve this problemStep 1 − Define a method that accepts the head of a linked list.Step 2 − If head == nil, return the head.Step 3 − Iterate the given linked list.Step 4 − If temp.value is 10, then override that node’s next value with its next node’s next value.Step 5 − If node value 10 is not found, return the head without deleting any node.Examplepackage main import "fmt" type Node struct { value int next *Node } func NewNode(value int, next *Node) *Node{ var n Node n.value = ...
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