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79 lines
1.6 KiB
C
79 lines
1.6 KiB
C
/*
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* C Program to Search for an Element in the Linked List without
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* using Recursion
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*/
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#include <stdio.h>
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#include <stdlib.h>
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struct node
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{
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int a;
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struct node *next;
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};
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void generate(struct node **, int);
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void search(struct node *, int);
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void delete(struct node **);
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int main()
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{
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struct node *head = NULL;
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int key, num;
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printf("Enter the number of nodes: ");
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scanf("%d", &num);
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printf("\nDisplaying the list\n");
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generate(&head, num);
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printf("\nEnter key to search: ");
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scanf("%d", &key);
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search(head, key);
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delete(&head);
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return 0;
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}
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void generate(struct node **head, int num)
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{
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int i;
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struct node *temp;
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for (i = 0; i < num; i++)
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{
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temp = (struct node *)malloc(sizeof(struct node));
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temp->a = rand() % num;
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if (*head == NULL)
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{
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*head = temp;
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temp->next = NULL;
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}
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else
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{
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temp->next = *head;
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*head = temp;
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}
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printf("%d ", temp->a);
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}
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}
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void search(struct node *head, int key)
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{
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while (head != NULL)
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{
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if (head->a == key)
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{
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printf("key found\n");
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return;
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}
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head = head->next;
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}
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printf("Key not found\n");
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}
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void delete(struct node **head)
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{
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struct node *temp;
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while (*head != NULL)
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{
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temp = *head;
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*head = (*head)->next;
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free(temp);
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}
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} |