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#include <stdlib.h>
// define node structure
struct Node {
int data;
struct Node* next;
};
// define stack structure
struct Stack {
struct Node* top;
};
// function to create a new node
struct Node* newNode(int data) {
struct Node* node = (struct Node*)malloc(sizeof(struct Node));
node->data = data;
node->next = NULL;
return node;
}
// function to check if the stack is empty
int isEmpty(struct Stack* stack) {
return (stack->top == NULL);
}
// function to push an element to the stack
void push(struct Stack* stack, int data) {
struct Node* node = newNode(data);
node->next = stack->top;
stack->top = node;
printf("%d pushed to stackn", data);
}
// function to pop an element from the stack
int pop(struct Stack* stack) {
if (isEmpty(stack)) {
printf("Stack is emptyn");
return -1;
}
struct Node* temp = stack->top;
stack->top = stack->top->next;
int popped = temp->data;
free(temp);
return popped;
}
// function to display the elements in the stack
void display(struct Stack* stack) {
if (isEmpty(stack)) {
printf("Stack is emptyn");
return;
}
struct Node* temp = stack->top;
printf("Stack elements: ");
while (temp != NULL) {
printf("%d ", temp->data);
temp = temp->next;
}
printf("n");
}
// main function
int main() {
struct Stack* stack = (struct Stack*)malloc(sizeof(struct Stack));
stack->top = NULL;
push(stack, 1);
push(stack, 2);
push(stack, 3);
display(stack);
printf("%d popped from stackn", pop(stack));
printf("%d popped from stackn", pop(stack));
display(stack);
return 0;
}ith others. Click here ...
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