added new code

app.py

@@ -1,9 +1,9 @@
 import streamlit as st
-from calculator import add, subtract, multiply, divide
+from calculator import add, subtract, multiply, divide,greater
 
 st.title("Calculator App")
 
-operation = st.selectbox("Select operation:", ["Add", "Subtract", "Multiply", "Divide"])
+operation = st.selectbox("Select operation:", ["Add", "Subtract", "Multiply", "Divide", "Greater than"])
 x = st.number_input("Enter first number:", value=0)
 y = st.number_input("Enter second number:", value=0)
 
@@ -16,4 +16,6 @@ if st.button("Calculate"):
         result = multiply(x, y)
     elif operation == "Divide":
         result = divide(x, y)
+    elif operation=="Greater than":
+        result= greater(x,y)
     st.write(f"The result is: {result}")

calculator.py

@@ -11,7 +11,11 @@ def divide(x, y):
     if y == 0:
         return "Cannot divide by zero!"
     return x / y
-
+def greater(x,y):
+    if x > y:
+        return x
+    else:
+        return y
 if __name__ == "__main__":
     print("Select operation:")
     print("1.Add")