Computer Applications

If `int a[] = {7, 3, 4, 8, 9, 2};` what are the values of x and y?
(a) x = a[1] * a[0] + a[3]
(b) y = a.length

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(a) Since array index begin from 0, the given expression is evaluated as follows:

x = a[1] * a[0] + a[3]
⟹ x = 3 * 7 + 8
⟹ x = 29

(b) length of an array is the number of elements in an array. Thus, y = 6.

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int x = 2, y = 50;
do
{
    ++x;
    y -= x++;
} while (x <= 10);
return y;