Update binary-string-with-substrings-representing-1-to-n.py

Author: kamyu104

Python/binary-string-with-substrings-representing-1-to-n.py

@@ -9,6 +9,6 @@ def queryString(self, S, N):
         :rtype: bool
         """
         # since S with length n has at most different n-k+1 k-digit numbers
-        # => given S with length n, N is at most 2(n-k+1)
-        # => N <= 2(n-k+1) < 2n = 2 * S.length
+        # => given S with length n, valid N is at most 2(n-k+1)
+        # => valid N <= 2(n-k+1) < 2n = 2 * S.length
         return all(bin(i)[2:] in S for i in reversed(xrange(N//2, N+1)))