Explanation of Problem 11
(5 + b / c) % 2 is equivalent to (5 + 4 / 6) % 2.
Starting inside the parenthesis, we first perform the integer division
4 / 6, which is 0. Since 5 + 0 = 0, the problem simplifies to 5 % 2.
The % operator is the remainder after divsion. 5 / 2 is 2 with remainder
of 1, so 5 % 2 = 1.
Remeber that doing x % 2 tells us if x is odd or even. If x is odd,
the result is 1. If x is even the result is 0.