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Can you solve this real interview question? Linked List Cycle - Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview.
class Solution { public: bool hasCycle(ListNode* head) { ListNode* slow = head; ListNode* fast = head; while (fast != nullptr && fast->next != nullptr) { slow = slow->next; fast = fast->next->next; if (slow == fast) return true; } return false; } }; 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15.
Linked List Cycle - Given head, the head of a linked list, determine if the linked list has a cycle in it. There is a cycle in a linked list if there is some node in the list that can be reached again by continuously following the next pointer. Internally, pos is used to denote the index of the node that tail's next pointer is connected to.
Apr 19, 2016 · 141. Linked List Cycle Description. Given head, the head of a linked list, determine if the linked list has a cycle in it. There is a cycle in a linked list if there is some node in the list that can be reached again by continuously following the next pointer.
142. Linked List Cycle II. Medium. Given the head of a linked list, return the node where the cycle begins. If there is no cycle, return null. There is a cycle in a linked list if there is some node in the list that can be reached again by continuously following the next pointer.
A really interesting problem where you are required to determine if there is a cycle in a linked list. A loop/cycle is formed if one of the pointers in the l...
141. Linked List Cycle. Description. Given head, the head of a linked list, determine if the linked list has a cycle in it. There is a cycle in a linked list if there is some node in the list that can be reached again by continuously following the next pointer.
