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fix(Update README.md):numbers[mid] == numbers[r] 并不能断定 numbers[mid] 一定不是最小值 #3730

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yanglbme merged 1 commit into doocs:main from lingxier:patch-1
Nov 8, 2024
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Update README.md 
numbers[mid] == numbers[r] 并不能断定 numbers[mid] 一定不是最小值。应该修改为:
无法确定最小值的位置,但可以简单地缩小搜索范围,
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lingxier authored Nov 7, 2024
commit 65b3a21c7c6cc71346c986d7cf2ce59368a90d16
2 changes: 1 addition & 1 deletion lcof/面试题11. 旋转数组的最小数字/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -46,7 +46,7 @@ edit_url: https://github.com/doocs/leetcode/edit/main/lcof/%E9%9D%A2%E8%AF%95%E9

- `numbers[mid] > numbers[r]`:中间元素一定不是最小值,因此 $l = mid + 1$;
- `numbers[mid] < numbers[r]`:中间元素可能是最小值,因此 $r = mid$;
- `numbers[mid] == numbers[r]`:中间元素一定不是最小值,因此 $r = r - 1$。
- `numbers[mid] == numbers[r]`:无法确定最小值的位置,但可以简单地缩小搜索范围,因此 $r = r - 1$。

循环结束时,指针 $l$ 和 $r$ 指向同一个元素,即为最小值。

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