<<< Swapping without using a third variable | Logical Flow of Code (LFoC)

#AbdurRahimRatulAliKhan #Programming #Swapping #Algorithm

This code demonstrates how to swap two variables without using a third variable. The variables 'a' and 'b' are initially assigned the values from the input.

The swapping logic is achieved through the following steps:

1. The value of 'a' is updated by adding 'b' to it: `a = a + b;`

2. Then, 'b' is assigned the new value by subtracting the original value of 'b' from the updated 'a': `b = a - b;`

3. Finally, 'a' is updated with the new value by subtracting the updated 'b' (which is now the original value of 'a') from the updated 'a': `a = a - b;`

After the execution of these steps, the values of 'a' and 'b' are successfully swapped without using a third variable.

Example Input: 1 3

Step-by-step Execution:

a = 1, b = 3

# Step 1: a = a + b => a = 1 + 3 = 4

a = 4, b = 3

# Step 2: b = a - b => b = 4 - 3 = 1

a = 4, b = 1

# Step 3: a = a - b => a = 4 - 1 = 3

a = 3, b = 1

Example Output: 3 1

This code provides an efficient way to swap two variables using simple arithmetic operations, without the need for a third temporary variable. The algorithm is commonly used in programming to exchange the values of variables efficiently.

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