// 时间On^2, 空间On, 答案不对,应该构造数组的下标不对
func LIS( arr []int ) []int {
if len(arr) == 0 {
return arr
}
n := len(arr)
res := 0
cur := []int{}
dp := make([]int, n+1)
for i := 1; i < n; i++ {
dp[i] = 1
for j := 0; j < i; j++ {
if arr[j] < arr[i] {
dp[i] = max(dp[i], dp[i] + 1)
}
}
if dp[i] > res {
res = dp[i]
cur = append(cur, arr[i])
}
}
return cur
}
func max(a, b int) int {
if a > b {
return a
}
return b
}