fix: update code

moonbitlang · Nov 28, 2024 · 17d91c2 · 17d91c2
1 parent c66a7ee
commit 17d91c2
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/next/sources/segment-tree/src/part2/top.mbt b/next/sources/segment-tree/src/part2/top.mbt
@@ -112,7 +112,9 @@ fn modify(
     self.apply(tag)
   } else {
     guard let Node(left~, right~, ..) = self
-    left.apply(tag) + right.apply(tag)
+    let mid = (l + r) >> 1
+    left.modify(l, mid, modify_l, modify_r, tag) +
+    right.modify(mid + 1, r, modify_l, modify_r, tag)
   }
 }
 // end modify definition