From eedc44ba5c4c0b577a2476b03523ec10dee2d923 Mon Sep 17 00:00:00 2001
From: Eatswap <root@eatswap.org>
Date: Sun, 26 Mar 2023 18:40:00 +0800
Subject: [PATCH] add: 230326-CN

---
 cpp/2303/230326-CN.cpp  | 24 ++++++++++++++++++++++++
 cpp/2303/CMakeLists.txt |  2 +-
 2 files changed, 25 insertions(+), 1 deletion(-)
 create mode 100644 cpp/2303/230326-CN.cpp

diff --git a/cpp/2303/230326-CN.cpp b/cpp/2303/230326-CN.cpp
new file mode 100644
index 0000000..3bee197
--- /dev/null
+++ b/cpp/2303/230326-CN.cpp
@@ -0,0 +1,24 @@
+#include <vector>
+#include <unordered_set>
+
+/**
+ * 2395. Find Subarrays With Equal Sum
+ *
+ * Given a 0-indexed integer array nums, determine whether there exist two subarrays of length 2 with equal sum. Note that the two subarrays must begin at different indices.
+ * Return true if these subarrays exist, and false otherwise.
+ * A subarray is a contiguous non-empty sequence of elements within an array.
+ */
+
+class Solution {
+public:
+	static bool findSubarrays(const std::vector<int>& nums) {
+		const int n = nums.size();
+		std::unordered_set<int> s;
+		for (int i = 1; i < n; ++i)
+			if (s.count(nums[i] + nums[i - 1]))
+				return true;
+			else
+				s.insert(nums[i] + nums[i - 1]);
+		return false;
+	}
+};
diff --git a/cpp/2303/CMakeLists.txt b/cpp/2303/CMakeLists.txt
index 093ba78..ca81fac 100644
--- a/cpp/2303/CMakeLists.txt
+++ b/cpp/2303/CMakeLists.txt
@@ -3,4 +3,4 @@ PROJECT(2303)
 
 SET(CMAKE_CXX_STANDARD 23)
 
-ADD_EXECUTABLE(2303 230325.cpp)
+ADD_EXECUTABLE(2303 230326-CN.cpp)