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formatting source-code for 153fb7b8a5

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2020-05-30 04:02:09 +00:00
parent 92fe9495ec
commit 8a2de9842b
175 changed files with 1671 additions and 3460 deletions
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39
data_structure/queue_using_linkedlist.cpp
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@@ -3,13 +3,11 @@
*/
#include <iostream>
struct linkedlist
{
struct linkedlist {
int data;
linkedlist *next;
};
class stack_linkedList
{
class stack_linkedList {
public:
linkedlist *front;
linkedlist *rear;
@@ -19,28 +17,24 @@ class stack_linkedList
int dequeue();
void display();
};
void stack_linkedList::enqueue(int ele)
{
void stack_linkedList::enqueue(int ele) {
linkedlist *temp = new linkedlist();
temp->data = ele;
temp->next = NULL;
if (front == NULL)
front = rear = temp;
else
{
else {
rear->next = temp;
rear = temp;
}
}
int stack_linkedList::dequeue()
{
int stack_linkedList::dequeue() {
linkedlist *temp;
int ele;
if (front == NULL)
std::cout << "\nStack is empty";
else
{
else {
temp = front;
ele = temp->data;
if (front == rear) // if length of queue is 1;
@@ -50,25 +44,21 @@ int stack_linkedList::dequeue()
}
return ele;
}
void stack_linkedList::display()
{
void stack_linkedList::display() {
if (front == NULL)
std::cout << "\nStack is empty";
else
{
else {
linkedlist *temp;
temp = front;
while (temp != NULL)
{
while (temp != NULL) {
std::cout << temp->data << " ";
temp = temp->next;
}
}
}
int main()
{
int main() {
int op, data;
stack_linkedList ob;
std::cout << "\n1. enqueue(Insertion) ";
@@ -76,17 +66,14 @@ int main()
std::cout << "\n3. Display";
std::cout << "\n4. Exit";
while (1)
{
while (1) {
std::cout << "\nEnter your choice ";
std::cin >> op;
if (op == 1)
{
if (op == 1) {
std::cout << "Enter data ";
std::cin >> data;
ob.enqueue(data);
}
else if (op == 2)
} else if (op == 2)
data = ob.dequeue();
else if (op == 3)
ob.display();