#### Find all words in a 2D array of characters

This problem asks us to find all the words in a 2D array of characters. The input is a 2D array of characters, and the output is a list of strings containing all the words in the array.

#### Problem

```Given a 2D array of characters, find all the words in the array.
Input:
[['a','b','c','d'],
['e','f','g','h'],
['i','j','k','l'],
['m','n','o','p']]
Output:
["abcd", "efgh", "ijkl", "mnop"]```

#### Solution

This solution is in C#. Our A.I. can create solutions in multiple languages.
```using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
char[,] input = new char[4, 4] { { 'a', 'b', 'c', 'd' }, { 'e', 'f', 'g', 'h' }, { 'i', 'j', 'k', 'l' }, { 'm', 'n', 'o', 'p' } };
List<string> output = new List<string>();
for (int i = 0; i < input.GetLength(0); i++)
{
StringBuilder sb = new StringBuilder();
for (int j = 0; j < input.GetLength(1); j++)
{
sb.Append(input[i, j]);
}