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			54 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			54 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/**
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 * File: linear_search.c
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 * Created Time: 2023-03-19
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 * Author: Guanngxu (446678850@qq.com)
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 */
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#include "../utils/common.h"
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/* 线性查找(数组) */
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int linearSearchArray(int *nums, int len, int target) {
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    // 遍历数组
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    for (int i = 0; i < len; i++) {
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        // 找到目标元素,返回其索引
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        if (nums[i] == target)
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            return i;
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    }
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    // 未找到目标元素,返回 -1
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    return -1;
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}
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/* 线性查找(链表) */
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ListNode *linearSearchLinkedList(ListNode *head, int target) {
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    // 遍历链表
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    while (head != NULL) {
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        // 找到目标节点,返回之
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        if (head->val == target)
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            return head;
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        head = head->next;
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    }
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    // 未找到目标节点,返回 NULL
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    return NULL;
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}
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/* Driver Code */
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int main() {
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    int target = 3;
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    /* 在数组中执行线性查找 */
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    int nums[10] = {1, 5, 3, 2, 4, 7, 5, 9, 10, 8};
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    int index = linearSearchArray(nums, 10, target);
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    printf("目标元素 3 的索引 = %d\n", index);
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    /* 在链表中执行线性查找 */
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    ListNode *head = arrToLinkedList(nums, 10);
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    ListNode *node = linearSearchLinkedList(head, target);
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    if (node == NULL) {
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        printf("目标节点值 3 的对应节点对象为 NULL\n");
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    } else {
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        printf("目标节点值 3 的对应节点对象为 addr: %p val: %d\n", node, node->val);
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    }
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    return 0;
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}
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