Data commit

Task/Gray-code/Python/gray-code-2.py

@@ -0,0 +1,17 @@
+>>> def int2bin(n):
+	'From positive integer to list of binary bits, msb at index 0'
+	if n:
+		bits = []
+		while n:
+			n,remainder = divmod(n, 2)
+			bits.insert(0, remainder)
+		return bits
+	else: return [0]
+
+	
+>>> def bin2int(bits):
+	'From binary bits, msb at index 0 to integer'
+	i = 0
+	for bit in bits:
+		i = i * 2 + bit
+	return i