Exercise#2: [2D] Array (a) consists of 5 rows and 5 columns int a[][]= {{2,-5}, {3,3,1,-4,2}, {18}, {9,2,1,2, 9}}; (a) Write a c++ code that stores the value of 50 instead of any negative number that...

Extracted text: Exercise#2: [2D] Array (a) consists of 5 rows and 5 columns int a[][]= {{2,-5}, {3,3,1,-4,2}, {18}, {9,2,1,2, 9}}; (a) Write a c++ code that stores the value of 50 instead of any negative number that it finds in the second row of the array(a). (b) Find how many integers are stored in an array a, (c) Count the number of zeros in the matrix