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

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

Author: pre-commit-ci[bot]

content/4_Gold/PURS.mdx

@@ -87,8 +87,8 @@ They will be covered in [platinum](/plat/seg-ext).
 ```cpp
 #include <algorithm>
 #include <iostream>
-#include <vector>
 #include <limits>
+#include <vector>
 
 using std::cout;
 using std::endl;
@@ -312,7 +312,7 @@ template <class T> class SumSegmentTree {
 		return sum;
 	}
 };
-//EndCodeSnip
+// EndCodeSnip
 
 int main() {
 	int arr_len;
@@ -438,6 +438,8 @@ class SumSegmentTree:
 			start //= 2
 			end //= 2
 		return total
+
+
 # EndCodeSnip