/** * File: linear_search.cs * Created Time: 2022-12-23 * Author: haptear (haptear@hotmail.com) */ namespace hello_algo.chapter_searching; public class linear_search { /* 线性查找(数组) */ int LinearSearchArray(int[] nums, int target) { // 遍历数组 for (int i = 0; i < nums.Length; i++) { // 找到目标元素,返回其索引 if (nums[i] == target) return i; } // 未找到目标元素,返回 -1 return -1; } /* 线性查找(链表) */ ListNode? LinearSearchLinkedList(ListNode? head, int target) { // 遍历链表 while (head != null) { // 找到目标节点,返回之 if (head.val == target) return head; head = head.next; } // 未找到目标节点,返回 null return null; } [Test] public void Test() { int target = 3; /* 在数组中执行线性查找 */ int[] nums = [1, 5, 3, 2, 4, 7, 5, 9, 10, 8]; int index = LinearSearchArray(nums, target); Console.WriteLine("目标元素 3 的索引 = " + index); /* 在链表中执行线性查找 */ ListNode? head = ListNode.ArrToLinkedList(nums); ListNode? node = LinearSearchLinkedList(head, target); Console.WriteLine("目标节点值 3 的对应节点对象为 " + node); } }