From 98b0294f80cc4670a655565a2453da6650e80282 Mon Sep 17 00:00:00 2001
From: Jeffrey Hsu <xfj12@outlook.com>
Date: Sat, 12 Jul 2025 21:47:01 +0800
Subject: [PATCH] 1900

---
 include/solution/1900.h | 11 +++++++++++
 src/1900.c              |  6 ++++++
 tests/test_1900.cpp     | 34 ++++++++++++++++++++++++++++++++++
 3 files changed, 51 insertions(+)
 create mode 100644 include/solution/1900.h
 create mode 100644 src/1900.c
 create mode 100644 tests/test_1900.cpp

diff --git a/include/solution/1900.h b/include/solution/1900.h
new file mode 100644
index 0000000..f775201
--- /dev/null
+++ b/include/solution/1900.h
@@ -0,0 +1,11 @@
+#ifndef INC_1900_H
+#define INC_1900_H
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+    int *earliestAndLatest(int n, int firstPlayer, int secondPlayer, int *returnSize);
+#ifdef __cplusplus
+}
+#endif
+#endif
\ No newline at end of file
diff --git a/src/1900.c b/src/1900.c
new file mode 100644
index 0000000..4a96a29
--- /dev/null
+++ b/src/1900.c
@@ -0,0 +1,6 @@
+#include <solution/1900.h>
+
+int *earliestAndLatest(int n, int firstPlayer, int secondPlayer, int *returnSize)
+{
+    return 0;
+}
\ No newline at end of file
diff --git a/tests/test_1900.cpp b/tests/test_1900.cpp
new file mode 100644
index 0000000..b09b59d
--- /dev/null
+++ b/tests/test_1900.cpp
@@ -0,0 +1,34 @@
+#include <gtest/gtest.h>
+#include <solution/1900.h>
+
+class EarliestAndLatestTest : public ::testing::Test
+{
+  protected:
+    void AssertResult(int *result, int resultSize, const std::vector<int> &expected)
+    {
+        ASSERT_EQ(resultSize, expected.size());
+        for (int i = 0; i < resultSize; ++i)
+        {
+            EXPECT_EQ(result[i], expected[i]) << "Mismatch at index " << i;
+        }
+        free(result); // 符合题意：假设函数使用 malloc 分配内存
+    }
+};
+
+// Test 1: 输入：n = 11, firstPlayer = 2, secondPlayer = 4，输出：[3,4]
+TEST_F(EarliestAndLatestTest, Test1)
+{
+    int returnSize = 0;
+    int *result = earliestAndLatest(11, 2, 4, &returnSize);
+    std::vector<int> expected = {3, 4};
+    AssertResult(result, returnSize, expected);
+}
+
+// Test 2: 输入：n = 5, firstPlayer = 1, secondPlayer = 5，输出：[1,1]
+TEST_F(EarliestAndLatestTest, Test2)
+{
+    int returnSize = 0;
+    int *result = earliestAndLatest(5, 1, 5, &returnSize);
+    std::vector<int> expected = {1, 1};
+    AssertResult(result, returnSize, expected);
+}
\ No newline at end of file