Given a string s, partition s such that every substring of the partition is a palindrome.
Return all possible palindrome partitioning of s.
For example, given s = "aab"
,
Return
[ ["aa","b"], ["a","a","b"] ]
public List<List<String>> partition(String s) {
List<List<String>> list = new ArrayList<>();
backtrack(list, new ArrayList<>(), s, 0);
return list;
}
public void backtrack(List<List<String>> list, List<String> tempList, String s, int start) {
if (start == s.length())
list.add(new ArrayList<>(tempList));
else {
for (int i = start; i < s.length(); i++) {
if (isPalindrome(s, start, i)) {
tempList.add(s.substring(start, i + 1));
backtrack(list, tempList, s, i + 1);
tempList.remove(tempList.size() - 1);
}
}
}
}
public boolean isPalindrome(String s, int low, int high) {
while (low < high)
if (s.charAt(low++) != s.charAt(high--)) return false;
return true;
}
此类别问题的总结,值得一看