Update docs/ds/fenwick.md

Co-authored-by: mgt <mgt@oi-wiki.org>

diff --git a/docs/ds/fenwick.md b/docs/ds/fenwick.md
index e33f712..e27317b 100644 (file)
--- a/docs/ds/fenwick.md
+++ b/docs/ds/fenwick.md
@@ -66,7 +66,6 @@ int lowbit(int x) {
  $-x = -88_{(10)} = (10100111_{(2)} + 1_{(2)}) =10101000_{(2)}$ ；  
  $x\ \& \ (-x) = 1000_{(2)} = 8_{(10)}$ 。
 
-神奇吧，我也觉得神奇！
 
 那么对于 **单点修改** 就更轻松了：