huangzj
29 lines
446 B
Go
29 lines
446 B
Go
/*
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* @Author : huangzj
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* @Time : 2020/8/18 17:45
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* @Description：二分查找法，对于有序数组进行查找
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*/
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package search
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func BinarySearch(list []int, value int) int {
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low := 0
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high := len(list) - 1
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var mid int
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for low <= high {
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mid = (low + high) >> 1 //相当于(low + high) / 2
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if value == list[mid] {
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return mid
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}
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if value < list[mid] {
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high = mid - 1
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} else {
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low = mid + 1
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}
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}
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return -1
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}
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