There are three ways to detect a loop in a linked list cycle. They are as listed below. Traversing through the list, Using HashSet, Using Floyd's Cycle Detection Algorithm
Detect loop in a singly linked list 去Twitter面试的被问到这个问题,当时只想到了用HashMap的办法,这种办法时间复杂度O(n),空间复杂度是O(n), 更好的办法是用 FastRunner / SlowRunner approach。用两个pointer遍历链表,fast的速度是slow的两倍,如果有loop,二者一定会collide。 booleandetectLoop(LinkedListNode ...
public boolean ifLoopExists() { Node fastPtr = head; Node slowPtr = head; while (fastPtr != null && fastPtr.next != null) { fastPtr = fastPtr.next.next; slowPtr = slowPtr.next; if (slowPtr == fastPtr) return true; } return false; } Above solution work with o(n) time comp...
1#include <iostream>2#include <vector>3#include <algorithm>4#include <queue>5#include <stack>6#include <string>7#include <fstream>8#include 9#include <set>10usingnamespacestd;1112structnode {13intdata;14node *next;15node() : data(0), next(NULL) { }16node(intd) : data(d), next(...
In this tutorial, we will see how to detect a loop in a linked list in java. LinkedList is a linear data structure where the elements are not stored in contiguous locations and every element is a separate object with a data part and address part. Each element is known as a node. Due...
(n^2) * * Eff solution: we break the rules * we modify the struct of LL and add an extra field isVisited initialised to false * * Now I traverse the list and if I find any node whose isVisited is already set, I will say there is a loop * if(yes) * return yes * else * ...
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Here's a more robust solution: Modify the XML processing in find-plugin-repos.sh to clean the input before parsing. Replace the current xmllint calls with: Add similar error handling in parse_pom_for_java_version function. This approach will: Clean the input by removing non-ASCII characters ...
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