diff --git a/day6/homework/h5.cpp b/day6/homework/h5.cpp
new file mode 100644
index 0000000..5ad6f94
--- /dev/null
+++ b/day6/homework/h5.cpp
@@ -0,0 +1,15 @@
+#include <iostream>
+
+using namespace std;
+
+int main()
+{
+    int a, b;
+    int outnum; // 输出的数字
+    cout << "请输入两个整数: ";
+    cin >> a >> b;
+
+    outnum = a > 0 ? (b > 0 ? a + b : a - b) : (b < 0 ? a * b : a - b);
+    cout << outnum << endl;
+    return 0;
+}
\ No newline at end of file