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Linear List Implementations Array-Based Sequence template <typename T> class Sequence { private: T* data; int capacity; int count; int current; public: Sequence(int size) : capacity(size), count(0), current(0) { data = new T[capacity]; } ~Sequence() { delete[] data; } void insert(T val ...

Traversing ArrayList with Iterator The following demonstration illustrates how to populate an ArrayList and traverse its contents using the Iterator itnerface. This approach allows for safe removal of elements during iteraiton, though this specific example focuses on retrieval. package com.demo.collections; import java.util.ArrayList; import j ...

// Stack: Last-In-First-Out (LIFO) // Queue: First-In-First-Out (FIFO) // Array: Fast access, slow insertion/deletion // Linked List: Slow access, fast insertion/deletion // Red-Black Tree: Efficient search (binary search principle) Collection Interface public class CollectionDemo { public static void main(String[] args) { Collect ...

Linked Lists Overview Linked lists implement linear sequences using nodes connected via pointers, enabling non-contiguous memory storage. Each node contains: Data field: Stores element values Pointer field: References adjacent nodes Classification Criteria Dummy head: Fixed header node with invalid data Directionality: Single (unidirectional ...

// Definition for singly-linked list. // pub struct ListNode { pub val: i32, pub next: Option<Box<ListNode>> } impl Solution { pub fn remove_elements(root: Option<Box<ListNode>>, target: i32) -> Option<Box<ListNode>> { let mut root = root; while let Some(n) = root.as_ref() { ...

Swapping Adjacent Nodes in Linked List This algorithm swaps every two adjacent nodes in a linked list using a dummy head approach for consistent handling. Key implementation details: Use a dummy head node to simplify edge cases Maintain current pointer before the pair being swapped Careful manage temporary references during swapping Ensure loo ...

一 Arraylist 1、Three Implemented Interfaces public class ArrayList<E> extends AbstractList<E> implements List<E>, RandomAccess, Cloneable, java.io.Serializable RandomAccess Interface: The ArrayList class implements the RandomAccess interface, which indicates that it supports efficient random access—accessing elemen ...