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45 lines
1.0 KiB
45 lines
1.0 KiB
=begin
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File: linear_search.rb
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Created Time: 2024-04-09
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Author: Blue Bean (lonnnnnnner@gmail.com)
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=end
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require_relative '../utils/list_node'
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### 线性查找（数组） ###
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def linear_search_array(nums, target)
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# 遍历数组
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for i in 0...nums.length
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return i if nums[i] == target # 找到目标元素，返回其索引
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end
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-1 # 未找到目标元素，返回 -1
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end
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### 线性查找（链表） ###
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def linear_search_linkedlist(head, target)
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# 遍历链表
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while head
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return head if head.val == target # 找到目标节点，返回之
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head = head.next
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end
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nil # 未找到目标节点，返回 None
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end
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### Driver Code ###
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if __FILE__ == $0
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target = 3
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# 在数组中执行线性查找
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nums = [1, 5, 3, 2, 4, 7, 5, 9, 10, 8]
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index = linear_search_array(nums, target)
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puts "目标元素 3 的索引 = #{index}"
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# 在链表中执行线性查找
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head = arr_to_linked_list(nums)
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node = linear_search_linkedlist(head, target)
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puts "目标节点值 3 的对应节点对象为 #{node}"
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end
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