[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

solutions/platinum/bts-hotcold.mdx

@@ -57,12 +57,12 @@ using ll = long long;
 class Tree {
   private:
 	const int n;
-	const int log2dist;        // max height of the tree
-	vector<vector<int>> &adj;  // reference to adjacency list
-	vector<vector<int>> lift;  // for binary lifting
-	vector<array<ll, 2>> diff; // difference array updates
-	vector<int> depth;         // depth of each node
-	
+	const int log2dist;         // max height of the tree
+	vector<vector<int>> &adj;   // reference to adjacency list
+	vector<vector<int>> lift;   // for binary lifting
+	vector<array<ll, 2>> diff;  // difference array updates
+	vector<int> depth;          // depth of each node
+
 	// these are for Euler tour
 	vector<int> tin;
 	vector<int> tout;