(int[] nums, int k)

(TreeNode root)

(List<Integer> res, TreeNode root, int curLevel)

(List<Integer> res, TreeNode root)

(TreeNode node)

(ListNode head)

(TreeNode root)

(int n, int m)

(List<String> res, String[][] tickets, String source, Set<String[]> visited)

(TreeNode root, String s)

(int m, int n)

(Set<List<Integer>> res, int[] nums, List<Integer> tempList, int index)

(String s, int k, int begin, int end)

(TreeNode root, TreeNode pre)

(int id)

(int x, int y)

(String init)

(List<String> res, List<Character> list, String mid, StringBuilder sb, boolean[] visited)

(int max)

(int begin, int end)

(int[] num, int count, int position, int calculated, List<Integer> res)

(int key)

(List<NestedInteger> list, int level)

(int[] a, int[] b)

(char[][] grid, int x, int y)

(int x, int y)

(String s)

(Set<String> bank, String gen)

(Set<String> wordList, String word)

(Set<String> dict, String word)

(List<List<String>> res, Map<String, List<String>> hm, List<String> tempList, String endWord)

(Map<String, List<Integer>> hm, String word)

(Map<String, List<Integer>> hm, String word1, String word2)

(char c)

(List<NestedInteger> list, int level)

(List<NestedInteger> list, int depth)

(int val)

(List<List<Integer>> adjList, boolean[] visited, int u, int parent)

()

(TreeNode node, int[] count)

(List<String> res, TreeNode root, StringBuilder sb)

(List<List<Integer>> result, List<Integer> item, int n, int start)

(int num)

(TreeNode root, double target, Stack<Integer> stack, Queue<Integer> queue)

(TreeNode root, double target)

(TreeNode root)

(TreeNode root, int v, int d, int depth)

(Course cur, int[] result)

(int[] board, int row, int col)

(String s, int begin, int end)

(int x, int y, int rows, int cols)

(char[][] board, int x, int y, char c)

(String s)

(Long first, Long second, int start, String num)

(char[][] grid, int i, int j)

(char[][] grid, int i, int j)

(int[] candidates, int target)

(List<Integer> res, TreeNode root)

(TreeNode root, int cur, int count)

(TreeNode root)

(char[][] grid, int i, int j)

(ListNode l1, ListNode l2)

(List<Interval> res, List<Interval> intervals, Interval pre, int position)

(int[][] board, int rows, int cols, int i, int j)

()

(Map<Character, Character> map, char target)

(String s)

(int[] subsets, int[] nums, int index, int subSum)

(char[][] board, int x, int y)

(int id)

(List<Integer> needs, List<Integer> price)

(List<List<String>> res, int[] board, int row)

(int[] boxes, int i, int j, int k, int[][][] dp)

(String board)

(List<String> res, String s, StringBuilder sb, int index)

(int[] nums)

(char[] s, int begin, int end)

(ListNode head)

(int[] nums)

(List<Integer> res, TreeNode root)

(List<Integer> res, TreeNode root, int curLevel)

(List<List<String>> res, int[] board)

(char[][] picture, int row, int target, int[] colCount)

(int[] list,int position, int target)

(TrieNode root, String word)

(String word, TrieNode root, int index)

(TreeNode root, List<Integer> pathSum, int sum)

(TreeNode root, StringBuilder sb)

(List<Integer> price, List<List<Integer>> special, List<Integer> needs, int index)

(char[][] board)

(int[][] maze, int startX, int startY, int destX, int destY)

(int[][] maze, int startX, int startY, int destX, int destY, boolean[][] visited)

(Map<String, List<String>> hm, String pre, String cur)

(TreeNode root, TreeNode p)

(int[] nums)

(List<List<Integer>> res, TreeNode root, int sum, List<Integer> tempList)

(TreeNode root, int val)

(int[] nums, int a, int b)

(TreeNode root)