Revert "👌 IMPROVE:"

promacanthus · promacanthus · commit 80a0851574ba · 2020-08-12T15:28:32.000+08:00
This reverts commit aecf156.
diff --git a/basic_algorithm/binary_search.md b/basic_algorithm/binary_search.md
@@ -223,7 +223,7 @@ func firstBadVersion(n int) int {
     start := 0
     end := n
     for start+1 < end {
-        mid := start + ((end-start)>>1)
+        mid := start + (end - start)/2
         if isBadVersion(mid) {
             end = mid
         } else if isBadVersion(mid) == false {
