From 3ffc013354245f49e7d2f033b72fa51b0ce1d971 Mon Sep 17 00:00:00 2001
From: Zhiyang Lu <103179313+alfaloo@users.noreply.github.com>
Date: Tue, 10 Jun 2025 22:59:02 +0800
Subject: [PATCH] [typo] variable name should be r instead of res

---
 content/english/hpc/number-theory/exponentiation.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/content/english/hpc/number-theory/exponentiation.md b/content/english/hpc/number-theory/exponentiation.md
index 8806257d..2bb248d2 100644
--- a/content/english/hpc/number-theory/exponentiation.md
+++ b/content/english/hpc/number-theory/exponentiation.md
@@ -76,7 +76,7 @@ u64 binpow(u64 a, u64 n) {
     
     while (n) {
         if (n & 1)
-            r = res * a % M;
+            r = r * a % M;
         a = a * a % M;
         n >>= 1;
     }