Given a linked lis

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Given a linked list of N nodes .. 

 

Given a linked list of N nodes such that it may contain a loop.
A loop here means that the last node of the link list is connected
to the node at position X(1-based index). If the link list does not
have any loop, X=0.
Remove the loop from the linked list, if it is present, i.e. unlink
the last node which is forming the loop.
Example 1:
Input:
N = 3
value[] = {1,3,4}
X = 2
Output: 1
Explanation: The link list looks like
1 -> 3 -> 4
A loop is present. If you remove it
successfully, the answer will be 1.
Transcribed Image Text:Given a linked list of N nodes such that it may contain a loop. A loop here means that the last node of the link list is connected to the node at position X(1-based index). If the link list does not have any loop, X=0. Remove the loop from the linked list, if it is present, i.e. unlink the last node which is forming the loop. Example 1: Input: N = 3 value[] = {1,3,4} X = 2 Output: 1 Explanation: The link list looks like 1 -> 3 -> 4 A loop is present. If you remove it successfully, the answer will be 1.
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