题目：
题解：
func partition(s string) (ans [][]string) {n := len(s)f := make([][]int8, n)for i := range f {f[i] = make([]int8, n)}// 0 表示尚未搜索，1 表示是回文串，-1 表示不是回文串var isPalindrome func(i, j int) int8isPalindrome = func(i, j int) int8 {if i >= j {return 1}if f[i][j] != 0 {return f[i][j]}f[i][j] = -1if s[i] == s[j] {f[i][j] = isPalindrome(i+1, j-1)}return f[i][j]}splits := []string{}var dfs func(int)dfs = func(i int) {if i == n {ans = append(ans, append([]string(nil), splits...))return}for j := i; j < n; j++ {if isPalindrome(i, j) > 0 {splits = append(splits, s[i:j+1])dfs(j + 1)splits = splits[:len(splits)-1]}}}dfs(0)return
}
)
