Write a C$++$ program that will have a $2-$Dimensional array with $5$ rows and $4$

columns and will contain integer data. You may initialize array with data when

declared the array.

Your program should have the following functions:

a$.$ getTotal$()$ will accept the $2-$D array and return total of all values in the

array. The size of array will be a constant global value.

b$.$ getAverage$()-$ will accept the $2-$D array and return average of all values in

the array. The size of array will be a constant global value.

c$.$ getRowTotal$()$ the first argument will be a $2-$D array, and an integer as the

second argument to indicate which row to work on$.$ Return the total of row

specified in the argument. This function should be called only if the value for

the row entered by user is valid.

d$.$ getColumnTotal$()$ the first argument will be a $2-$D array, and an integer as

the second argument to indicate which column to work on$.$ Return the total

of column specified in the argument. This function should be called only if

the value for the column entered by user is valid.

e$.$ getHighestInRow$()$ the first argument will be a $2-$D array, and an integer

as the second argument to indicate which row to work on$.$ Return the largest

value of row specified in the argument. This function should be called only if

the value for the row entered by user is valid.

f$.$ getLowestInColumn$()$ the first argument will be a $2-$D array, and an integer

as the second argument to indicate which column to work on$.$ Return the

smallest value of column specified in the argument. This function should be

called only if the value for the column entered by user is valid.

Lastly, print all the values returned by each of the function indicated above. Add

descriptive text to describe the value printed.

Add pre$-$conditions and post$-$conditions documentation to your function