diff --git a/include/solution/3202.h b/include/solution/3202.h
new file mode 100644
index 0000000..bcde9bd
--- /dev/null
+++ b/include/solution/3202.h
@@ -0,0 +1,11 @@
+#ifndef INC_3202_H
+#define INC_3202_H
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+    int maximumLength(int *nums, int numsSize, int k);
+#ifdef __cplusplus
+}
+#endif
+#endif
diff --git a/src/3202.c b/src/3202.c
new file mode 100644
index 0000000..cc131b4
--- /dev/null
+++ b/src/3202.c
@@ -0,0 +1,5 @@
+#include <solution/3202.h>
+
+int maximumLength(int *nums, int numsSize, int k)
+{
+}
\ No newline at end of file
diff --git a/tests/test_3202.cpp b/tests/test_3202.cpp
new file mode 100644
index 0000000..48b2dbe
--- /dev/null
+++ b/tests/test_3202.cpp
@@ -0,0 +1,25 @@
+#include <gtest/gtest.h>
+#include <solution/3202.h>
+
+class MaximumLengthWithKTest : public ::testing::Test
+{
+  protected:
+    void AssertMaximumLength(const std::vector<int> &nums, int k, int expected)
+    {
+        int *arr = const_cast<int *>(nums.data());
+        int result = maximumLength(arr, nums.size(), k);
+        EXPECT_EQ(result, expected);
+    }
+};
+
+// 示例 1：nums = [1,2,3,4,5], k = 2 => 输出 5
+TEST_F(MaximumLengthWithKTest, AllIncreasing)
+{
+    AssertMaximumLength({1, 2, 3, 4, 5}, 2, 5);
+}
+
+// 示例 2：nums = [1,4,2,3,1,4], k = 3 => 输出 4
+TEST_F(MaximumLengthWithKTest, AlternatingValidPairs)
+{
+    AssertMaximumLength({1, 4, 2, 3, 1, 4}, 3, 4);
+}
\ No newline at end of file