From 2aaba721fb5ae6c973b586aaec0b05bfbb722077 Mon Sep 17 00:00:00 2001
From: DarkWarrior703 <56077342+DarkWarrior703@users.noreply.github.com>
Date: Sat, 25 Apr 2020 22:38:53 +0300
Subject: [PATCH] Update double_factorial.cpp

---
 math/double_factorial.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/math/double_factorial.cpp b/math/double_factorial.cpp
index 6b9ff6500..1b09bebb4 100644
--- a/math/double_factorial.cpp
+++ b/math/double_factorial.cpp
@@ -10,7 +10,7 @@ of a number and is denoted by !! */
 
 uint64_t double_factorial_iterative(uint64_t n) {
   uint64_t res = 1;
-  for ( unsigned long long i = n; i >= 0; i -= 2 ) {
+  for ( uint64_t i = n; i >= 0; i -= 2 ) {
     if (i == 0 || i == 1) return res;
     res *= i;
   }