Python program to swap two numbers; Through this tutorial, i am going to show you how to swap two numbers with and without using third variable in python.
In this tutorial, i will create or write a python program to swap two numbers with and without using third variable.
Python Program to Swap Two Numbers
There are two way to swap two numbers in python program; as shown below:
- Python program to swap two numbers using the temporary/third variable.
- Python program to swap two numbers without using the temporary /third variable.
Python program to swap two numbers using the temporary /third variable
- Take input numbers from the user.
- Create a temp variable and swap the two numbers ( storing the value of
num1
intemp
so that when the value ofnum1
is overwritten bynum2
we have the backup of thenum1
value, which we later assign to the num2 ). - Print the num1 and num2 variables.
# Python program to swap two variables using temp variable num1 = input('Enter First Number: ') num2 = input('Enter Second Number: ') print("Value of num1 before swapping: ", num1) print("Value of num2 before swapping: ", num2) # swapping two numbers using temporary variable temp = num1 num1 = num2 num2 = temp print("Value of num1 after swapping: ", num1) print("Value of num2 after swapping: ", num2)
Python program to swap two numbers without using the temporary /third variable
- Take input numbers from the user.
- Swap two numbers, like this num1, num2 = num2, num1.
- Print the num1 and num2 variables.
# Python program to swap two variables without using third varible num1 = input('Enter First Number: ') num2 = input('Enter Second Number: ') print("Value of num1 before swapping: ", num1) print("Value of num2 before swapping: ", num2) # swapping two numbers without using temporary variable num1, num2 = num2, num1 print("Value of num1 after swapping: ", num1) print("Value of num2 after swapping: ", num2)
Output
Enter First Number: 9 Enter Second Number: 8 Value of num1 before swapping: 9 Value of num2 before swapping: 8 Value of num1 after swapping: 8 Value of num2 after swapping: 9
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