Task - 1

[gaddasravanthi7-byte]

https://chatgpt.com/s/t_691c085c28b0819199d43b4aba3cb0fe

[HARDIKSINGH07]

Basic Calculator Program

print("Select operation:")
print("1. Addition")
print("2. Subtraction")
print("3. Multiplication")
print("4. Division")

choice = input("Enter your choice (1/2/3/4): ")

num1 = float(input("Enter first number: "))
num2 = float(input("Enter second number: "))

if choice == '1':
print("Result =", num1 + num2)

elif choice == '2':
print("Result =", num1 - num2)

elif choice == '3':
print("Result =", num1 * num2)

elif choice == '4':
if num2 != 0:
print("Result =", num1 / num2)
else:
print("Error: Cannot divide by zero!")

else:
print("Invalid choice")

[JokoKusnandi]

Your program logic is correct, but the error occurs because of incorrect indentation.
In Python, indentation is required after if, elif, and else statements.

❌ Problems in Your Code

1. Missing indentation after if and elif
2. Nested if inside division option also not indented
3. Python will raise:

IndentationError: expected an indented block

print("Select operation:")
print("1. Addition")
print("2. Subtraction")
print("3. Multiplication")
print("4. Division")

choice = input("Enter your choice (1/2/3/4): ")

num1 = float(input("Enter first number: "))
num2 = float(input("Enter second number: "))

if choice == '1':
    print("Result =", num1 + num2)

elif choice == '2':
    print("Result =", num1 - num2)

elif choice == '3':
    print("Result =", num1 * num2)

elif choice == '4':
    if num2 != 0:
        print("Result =", num1 / num2)
    else:
        print("Error: Cannot divide by zero!")

else:
    print("Invalid choice")