/* * File: linear_search.cpp * Created Time: 2022-11-25 * Author: Krahets (krahets@163.com) */ #include "../include/include.hpp" /* 线性查找(数组) */ int linearSearch(vector& nums, int target) { // 遍历数组 for (int i = 0; i < nums.size(); 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* linearSearch(ListNode* head, int target) { // 遍历链表 while (head != nullptr) { // 找到目标结点,返回之 if (head->val == target) return head; head = head->next; } // 未找到目标结点,返回 nullptr return nullptr; } /* Driver Code */ int main() { int target = 3; /* 在数组中执行线性查找 */ vector nums = { 1, 5, 3, 2, 4, 7, 5, 9, 10, 8 }; int index = linearSearch(nums, target); cout << "目标元素 3 的索引 = " << index << endl; /* 在链表中执行线性查找 */ ListNode* head = vecToLinkedList(nums); ListNode* node = linearSearch(head, target); cout << "目标结点值 3 的对应结点对象为 " << node << endl; return 0; }