diff --git a/class/max_and_min.cpp b/class/max_and_min.cpp
new file mode 100644
index 0000000..d2f6f1a
--- /dev/null
+++ b/class/max_and_min.cpp
@@ -0,0 +1,21 @@
+#include <iostream>
+#include <algorithm>
+using namespace std;
+
+int main() {
+    int n;
+    cin >> n;  // 输入整数的个数
+    
+    int num, min_val;
+    cin >> num;  // 先输入第一个数字，初始化最小值
+    min_val = num;  // 将第一个数字设为初始的最小值
+
+    for (int i = 1; i < n; ++i) {
+        cin >> num;  // 输入其余的数字
+        min_val = min(min_val, num);  // 更新最小值
+    }
+
+    cout << min_val << endl;  // 输出最小值
+    
+    return 0;
+}
diff --git a/homework.cpp b/homework.cpp
new file mode 100644
index 0000000..18fbb13
--- /dev/null
+++ b/homework.cpp
@@ -0,0 +1,20 @@
+#include<iostream>
+
+using namespace std;
+
+int main(){
+    int daxie=65,xiaoxie=97;
+    while (daxie != 91 and xiaoxie != 123)
+    {
+        char daxie_1 = daxie;
+        char xiaaoxie_1 = xiaoxie;
+
+        cout <<daxie_1<<xiaaoxie_1;
+
+        daxie++;
+        xiaoxie++;
+    }
+    
+    
+    return 0;
+}
\ No newline at end of file