1.  Input an array of N numbers and sort them in descending order.
2.  Input an array of N integers, print out the elements that are divisible by the first element.
3.  Input an array of N elements, find the indices of the elements with the minimum value.
4.  Write a program that creates a two-dimensional array initialized with test data. Use any data type you wish. The program should have the following functions:
* **`getTotal`**. This function should accept a two-dimensional array as its argument and return the total of all the values in the array.
* **`getAverage`**. This function should accept a two-dimensional array as its argument and return the average of all the values in the array.
* **`getRowTotal`**. This function should accept a two-dimensional array as its first argument and an integer as its second argument. The second argument should be the subscript of a row in the array. The function should return the total of the values in the specified row.
* **`getColumnTotal`**. This function should accept a two-dimensional array as its first argument and an integer as its second argument. The second argument should be the subscript of a column in the array. The function should return the total of the values in the specified column.
* **`getHighestInRow`**. This function should accept a two-dimensional array as its first argument and an integer as its second argument. The second argument should be the subscript of a row in the array. The function should return the highest value in the specified row of the array.
* **`getLowestInRow`**. This function should accept a two-dimensional array as its first argument and an integer as its second argument. The second argument should be the subscript of a row in the array. The function should return the lowest value in the specified row of the array.
* *Demonstrate each of the functions in this program.*

5.  Given a square matrix, write two functions to swap two rows and two columns, respectively.
6.  Given a vector of N integers, print the set containing only distinct numbers (removing duplicates).