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
26
27
28
29
30
31

// @Title: 和大于等于 target 的最短子数组 (和大于等于 target 的最短子数组)
// @Author: 15816537946@163.com
// @Date: 2022-03-18 09:46:21
// @Runtime: 4 ms
// @Memory: 3.6 MB
func minSubArrayLen(target int, nums []int) int {
    var lo, hi, sum int
    ret := math.MaxInt32
    
    for hi < len(nums) {
        sum+=nums[hi]
        for sum >= target {
            ret = min(ret, hi-lo+1)
            sum -= nums[lo]
            lo++
        }
        hi++
    }

    if ret == math.MaxInt32 {
        return 0
    }
    return ret
}

func min(a,b int) int {
    if a > b {
        return b
    }
    return a
}