a) i) Using the C type square bracket notation, [], declare an array of type int that can store 100 elements and that is called foo. Write code to completely fill the array with '1' values. [2 marks] ii) What output does the following line produce? [1 mark] iii) std::vector [p] returns the value of the vector at p, but no bounds checking is performed. std:: vector .at (p) also returns the value of the vector at p but it also throws an std::out_of_range exception if p is out of bounds. Write a code snippet that demonstrates how the at() function can be correctly used and prints an error message if the exception is thrown. [2 marks] cout