(a/b) * b
+ a%b
shall equal a
1. 5 % 2
$(\frac{5}{2}) \times$ 2 + 5%2 = 5
5%2 = 5 - 4
5%2 = 1
2) -5 % 2
$(\frac{-5}{2}) \times$ 2 + -5%2 = -5
-2 * 2 + -5%2 = -5
-5%2 = -5 + 4
-5%2 = -1
3) 5%-2
$(\frac{5}{-2}) \times$ -2 + 5%-2 = 5
-2 * -2 + 5%-2 = 5
5%-2 = 1
4) -5%-2
$(\frac{-5}{-2}) \times$(-2) + -5%-2 = -5
2 * -2 + -5%-2 = -5
-5%-2 = -5 +4
-5 %-2 = -1
5) 2%5 = 2
Output : 1, -1, 1, -1, 2