1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
| // @Title: 颜色分类 (Sort Colors)
// @Author: 15816537946@163.com
// @Date: 2020-12-04 17:29:24
// @Runtime: 0 ms
// @Memory: 2 MB
// 荷兰国旗问题
func sortColors(nums []int) {
if len(nums) <= 1 {
return
}
lo, hi, cursor := 0, len(nums)-1, 0
for cursor <= hi {
if nums[cursor] == 0 {
nums[cursor], nums[lo] = nums[lo], nums[cursor]
lo++
cursor++
} else if nums[cursor] == 2 {
nums[cursor], nums[hi] = nums[hi], nums[cursor]
hi--
} else {
cursor++
}
}
}
|