Write out the declaration statement for an array having nine rows and twelve col

Question

Write out the declaration statement for an array having nine rows and twelve columns. For some program, you need an array having 10 elements numbered 1 through 10. Write out the proper C++ statements that will declare the array and read values into the array having the desired indices. Define a real array that contains the following values: 1.0, 2.5, 5.0, 7.5, 9.5 and 20.0. In addition, which of the array elements has index 3? Write out the proper C++ statement(s) that does the following: Declare a real array with 100 elements. Pass that array into a Boolean function named query.

Explanation / Answer

A. int a[9][9] ;

This means there will be 9 rows and 9 columns will be assigned for the array a.

B.
int main()
{
int num[5], sum = 0;
cout << "Enter 5 num: ";
for (int flag = 0; flag < 5; ++flag)
{
cin >> num[i];
sum += num[i];
}
cout << "Sum = " << sum << endl;
return 0;
}
C.

float values[6]={1.0,2.5,5.0,7.5,9.5,20.0}
as in array first index position will be started with 0 so the element in the index 3 will be "7.5"

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