Question: Write a C++ program using nested for-loops to calculate the sum of all elements in array A and display sum on screen. int A[ rows

Write a C++ program using nested for-loops to calculate the sum of all elements in array A and display sum on screen.

int A[ rows ][ columns ] = { { 10, 2, 30}, { 14, 15, 6 }, {7,18,9} };

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