C Exercises: Remove duplicates from a sorted singly linked list
C Singly Linked List : Exercise-35 with Solution
Write a C program to remove duplicates from a sorted singly linked list.
Sample Solution:
C Code:
#include<stdio.h>
#include <stdlib.h>
struct Node {
int data;
struct Node* next;
};
// 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 remove duplicates in a sorted node
void remove_Duplicates(struct Node* head) {
if (head == NULL) {
return;
}
struct Node* curr = head;
while (curr->next != NULL) {
if (curr->data == curr->next->data) {
struct Node* temp = curr->next;
curr->next = curr->next->next;
free(temp);
} else {
curr = curr->next;
}
}
}
// Function to print a linked list
void displayList(struct Node* head) {
while (head) {
printf("%d ", head->data);
head = head->next;
}
printf("\n");
}
int main() {
struct Node* head = newNode(1);
head->next = newNode(2);
head->next->next = newNode(3);
head->next->next->next = newNode(3);
head->next->next->next->next = newNode(5);
head->next->next->next->next->next = newNode(6);
head->next->next->next->next->next ->next = newNode(6);
printf("Original sorted singly linked list:\n");
displayList(head);
printf("\nAfter removing duplicates from the said sorted linked list:\n");
remove_Duplicates(head);
displayList(head);
return 0;
}
Sample Output:
Original sorted singly linked list: 1 2 3 3 5 6 6 After removing duplicates from the said sorted linked list: 1 2 3 5 6
Flowchart :


C Programming Code Editor:
Previous: Merge alternate nodes of two linked lists.
Next: Reverse a singly linked list in blocks of size k.
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