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Given three numbers and the task is to swap the given three numbers without using any temporary variable in python

**Examples:**

**Example1:**

**Input:**

Given first number= 30 Given second number= 45 Given third number= 21

**Output:**

The above given three numbers before swapping : first number = 30 second number = 45 third number = 21 The above given three numbers after swapping without using temporary variable: first number = 21 second number = 30 third number = 45

**Example2:**

**Input:**

Given first number= 60 Given second number= 80 Given third number= 70

**Output:**

The above given three numbers before swapping : first number = 60 second number = 80 third number = 70 The above given three numbers after swapping without using temporary variable: first number = 70 second number = 60 third number = 80

## Program for Swapping Three Variables Without Using any Temporary Variable in Python

Below are the ways to swap given three numbers without using any temporary variable in python:

### Method #1: Using Arithmetic Operators (Static Input)

**Approach:**

- Give the first number as static input and store it in a variable.
- Give the second number as static input and store it in another variable.
- Give the third number as static input and store it in another variable.
- Add first, second, and third numbers and assign the result to the first number.
- Add second, and third numbers and subtract the result from the given first number.
- Assign the result to the second number.
- Add second, and third numbers and subtract the result from the given first number.
- Assign the result to the given third number.
- Add second, and third numbers and subtract the result from the given first number.
- Assign the result to the given first number.
- Print the given three numbers after swapping without using a temporary variable.
- The Exit of the Program.

**Below is the implementation:**

# Give the first number as static input and store it in a variable. fst_numb = 30 # Give the second number as static input and store it in another variable. scnd_numb = 45 # Give the third number as static input and store it in another variable. thrd_numb = 21 print("The above given three numbers before swapping :") print("first number = ", fst_numb, "second number = ", scnd_numb, "third number = ", thrd_numb) # Add first, second, and third numbers and assign the result to the first number. fst_numb = fst_numb + scnd_numb + thrd_numb # Add second, and third numbers and subtract the result from the given first number. # Assign the result to the second number. scnd_numb = fst_numb - (scnd_numb+thrd_numb) # Add second, and third numbers and subtract the result from the given first number. # Assign the result to the given third number. thrd_numb = fst_numb - (scnd_numb+thrd_numb) # Add second, and third numbers and subtract the result from the given first number. # Assign the result to the given first number. fst_numb = fst_numb - (scnd_numb+thrd_numb) # Print the given three numbers after swapping without using a temporary variable. print("The above given three numbers after swapping without using temporary variable:") print("first number = ", fst_numb, "second number = ", scnd_numb, "third number = ", thrd_numb)

**Output:**

The above given three numbers before swapping : first number = 30 second number = 45 third number = 21 The above given three numbers after swapping without using temporary variable: first number = 21 second number = 30 third number = 45

### Method #2: Using Arithmetic Operators (User Input)

**Approach:**

- Give the first number as user input using the int(input()) function and store it in a variable.
- Give the second number as user input using the int(input()) function and store it in another variable.
- Give the third number as user input using the int(input()) function and store it in another variable.
- Add first, second, and third numbers and assign the result to the first number.
- Add second, and third numbers and subtract the result from the given first number.
- Assign the result to the second number.
- Add second, and third numbers and subtract the result from the given first number.
- Assign the result to the given third number.
- Add second, and third numbers and subtract the result from the given first number.
- Assign the result to the given first number.
- Print the given three numbers after swapping without using a temporary variable.
- The Exit of the Program.

**Below is the implementation:**

# Give the first number as user input using the int(input()) function and # store it in a variable. fst_numb = int(input('Enter some random number = ')) # Give the second number as user input using the int(input()) function and # store it in another variable. scnd_numb = int(input('Enter some random number = ')) # Give the third number as user input using the int(input()) function and # store it in another variable. thrd_numb = int(input('Enter some random number = ')) print("The above given three numbers before swapping :") print("first number = ", fst_numb, "second number = ", scnd_numb, "third number = ", thrd_numb) # Add first, second, and third numbers and assign the result to the first number. fst_numb = fst_numb + scnd_numb + thrd_numb # Add second, and third numbers and subtract the result from the given first number. # Assign the result to the second number. scnd_numb = fst_numb - (scnd_numb+thrd_numb) # Add second, and third numbers and subtract the result from the given first number. # Assign the result to the given third number. thrd_numb = fst_numb - (scnd_numb+thrd_numb) # Add second, and third numbers and subtract the result from the given first number. # Assign the result to the given first number. fst_numb = fst_numb - (scnd_numb+thrd_numb) # Print the given three numbers after swapping without using a temporary variable. print("The above given three numbers after swapping without using temporary variable:") print("first number = ", fst_numb, "second number = ", scnd_numb, "third number = ", thrd_numb)

**Output:**

Enter some random number = 60 Enter some random number = 80 Enter some random number = 70 The above given three numbers before swapping : first number = 60 second number = 80 third number = 70 The above given three numbers after swapping without using temporary variable: first number = 70 second number = 60 third number = 80

**Note: **It’s worth noting that the above method causes the stack to overflow when the variables have huge values. When dealing with enormous numbers, the solution is to adopt a different strategy.

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