Create Palindrome Partitioning.java

Author: Prakhar Agarwal

Palindrome Partitioning.java

@@ -0,0 +1,36 @@
+import java.util.*;
+
+class Solution {
+  public List<List<String>> partition(String s) {
+    List<List<String>> list = new ArrayList<>();
+    util(0, new ArrayList<String>(), s, list);
+    return list;
+  }
+
+  private void util(int start, List<String> temp, String s, List<List<String>> list) {
+    if (start == s.length()) {
+      list.add(new ArrayList<>(temp));
+      return;
+    }
+    for (int i = start; i < s.length(); i++) {
+      if (isPalindrome(s.substring(start, i + 1))) {
+        temp.add(s.substring(start, i + 1));
+        util(i + 1, temp, s, list);
+        temp.remove(temp.size() - 1);
+      }
+    }
+  }
+
+  private boolean isPalindrome(String s) {
+    int i = 0;
+    int j = s.length() - 1;
+    while (i <= j) {
+      if (s.charAt(i) != s.charAt(j)) {
+        return false;
+      }
+      i++;
+      j--;
+    }
+    return true;
+  }
+}