patch-binary-gap.c.diff

--- binary-gap-old.c	2016-03-21 15:59:35.872587138 -0700
+++ binary-gap.c	2016-03-21 15:59:40.936787734 -0700
@@ -1,16 +1,17 @@
 int binary_gap(int N) {
     int c=0;
     int m=0;
-    if (N == 0)
-        return 1;
+    while (N > 1 && N % 2 == 0)
+        N = N / 2;
+    N = N / 2;
     while (N > 1) {
         if (N % 2 == 0) {
             c = c + 1;
             if (c > m)
                 m = c;
         } else
             c = 0;
         N = N / 2;
     }
     return m;
 }