From bde1ceb0c2a5248e77317aed829ce119fcf234d7 Mon Sep 17 00:00:00 2001
From: Eatswap <root@eatswap.org>
Date: Wed, 27 Sep 2023 21:16:44 +0800
Subject: [PATCH] add: 230927 (3)

---
 cpp/2308/LC230927.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/cpp/2308/LC230927.cpp b/cpp/2308/LC230927.cpp
index 06f6bc5..f2ce83b 100644
--- a/cpp/2308/LC230927.cpp
+++ b/cpp/2308/LC230927.cpp
@@ -27,8 +27,7 @@ std::string LC230927::decodeAtIndex(const std::string& s, int k) {
 	for (int i = level - 1; i >= 0; --i) {
 		const auto prev_len = i ? std::get<2>(col[i - 1]) : 0ULL;
 		const auto& [b, c_dup, cur_len] = col[i];
-		ck %= (cur_len / c_dup);
-		if (ck >= prev_len)
+		if ((ck %= (cur_len / c_dup)) >= prev_len)
 			return {s[ck - prev_len + b]};
 	}
 	return {s[ck]};