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#linkedlists #evenlength #o(n) #c++
bool isEven(Node* head){ Node* fast = head; while(fast && fast->next) fast=fast->next->next; if(!fast ) return true; return false; }
Fri Oct 06 2023 12:11:23 GMT+0000 (Coordinated Universal Time) https://practice.geeksforgeeks.org/problems/given-a-linked-list-reverse-alternate-nodes-and-append-at-the-end/1