the number of vowels (a,e,o) in the off diagonal of the array

[enigmaticady]

This question is mainly based on Block II – Unit 1 and it tests your ability to work with arrays.
Consider a 5-by-5 array of characters. Write a C++ program to accomplish each of the following
operations:
a. Declare the above array. [2 marks]
b. Read the array. [6 marks]
c. Find and print the number of vowels (a,e,o) in the off diagonal of the array. [17 marks]
d. Replace each non-space character in the array by its next character value in the alphabetic
order (Example: letter b will be replaced by c, letter M will be replaced by N, and so on).

please solve and explain above mentioned

[Moschops]

This looks like MT262, an Open University course. As I recall, presenting you with a solution to copy would violate their rules on plagiarism.

We're happy to help; just not solve it for you.

Do you know how to do the first bit: declare an array?

[enigmaticady]

yes