how to flowchart of swap the contents of two variable using a third variable
1. Start the flowchart process.
2. Define and initialize the variables a,b, and temp to store the two variables whose contents need to be swapped and a third variable to hold temporarily the contents of one of the variables.
3. Display the values of variables a and b before swapping.
4. Assign the value of variable a to the temporary variable temp.
5. Assign the value of variable b to variable a.
6. Assign the value of temp to variable b.
7. Display the values of variables a and b after swapping.
8. Stop the flowchart process.
Here is the flowchart diagram:
```
START
Input a and b
Display "Before Swapping:"
Display a and b
Set temp = a
Set a = b
Set b = temp
Display "After Swapping:"
Display a and b
STOP
```
To create a flowchart for swapping the contents of two variables using a third variable, you can follow these steps:
1. Start the flowchart by placing the "Start" symbol at the top of the page.
2. Add two input boxes labeled "A" and "B" to represent the values of the two variables you want to swap.
3. Draw an arrow from the "Start" symbol to a rectangle labeled "Assign C = A". This step initializes a third variable, C, with the value of A.
4. Draw another arrow from the "Assign C = A" rectangle to a rectangle labeled "Assign A = B". This step assigns the value of B to A, effectively swapping their contents.
5. Draw a third arrow from the "Assign A = B" rectangle to a rectangle labeled "Assign B = C". This step assigns the value of C (initially A) to B, completing the swap.
6. Connect the "Assign B = C" rectangle to an output box labeled "A" to display the value of A after the swap.
7. Connect the "Assign B = C" rectangle to another output box labeled "B" to display the value of B after the swap.
8. Finally, connect the two output boxes to the "End" symbol to complete the flowchart.
The resulting flowchart will illustrate the step-by-step process of swapping the contents of two variables using a third variable.