Hi I need help in flowchart and desk checking.

1. Swapping (using 3 variables) a, b, temp

Scenario 1: input a = 3 and b = 4

Scenario 2: input a = 19 and b = 74.

2. Swapping (using 2 variables) a,b

Scenario 1: input a = 8 and b = 9

Scenario 2: input a = 74 and b = 75.

Please do include flowchart and desk checking in each Scenario.