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1. python_chat python_chat Public

   Python

2. Generic Set ADT Generic Set ADT

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   package main

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   import "fmt"

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   func main() {

3. datetime datetime Public

   date, time, and timezone concepts

4. Iterative postorder traversal of a b... Iterative postorder traversal of a binary tree

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   /**

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    * Definition for a binary tree node.

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    * public class TreeNode {

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    *     int val;

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    *     TreeNode left;

5. Iterative Tower of Hanoi implementat... Iterative Tower of Hanoi implementation in Java

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   public class Hanoi {

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       public long toh(int N, int from, int to, int aux) {

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           LinkedList<Integer> stack = new LinkedList();

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           LinkedList<Integer> froms = new LinkedList();

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           LinkedList<Integer> tos = new LinkedList();

6. Generating lexicographically ordered... Generating lexicographically ordered permutations

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   public class Permutation {

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       private char[] chars;

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       public ArrayList<String> permutation(String s) {

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           chars = s.toCharArray();