From 5cbc6662bcf8ecfed2471f5d26d8f0e3105b7b15 Mon Sep 17 00:00:00 2001
From: Augusto <aug.ornelas@gmail.com>
Date: Thu, 26 Sep 2019 16:01:51 +0100
Subject: [PATCH] Change signature of the functions to make it easier

---
 subjects/btreeapplybylevel.en.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/subjects/btreeapplybylevel.en.md b/subjects/btreeapplybylevel.en.md
index 37547bb50..942ab89a1 100644
--- a/subjects/btreeapplybylevel.en.md
+++ b/subjects/btreeapplybylevel.en.md
@@ -7,7 +7,7 @@ Write a function, `BTreeApplyByLevel`, that applies the function given by `fn` t
 ### Expected function
 
 ```go
-func BTreeApplyByLevel(root *TreeNode, fn interface{})  {
+func BTreeApplyByLevel(root *TreeNode, f func(...interface{}) (int, error))  {
 
 }
 ```