Function Overloading: Add

Write two overloaded functions both named add: one taking two ints and returning their int sum, and one taking two doubles and returning their double sum. Call add(2, 3) and print the result, then call add(2.5, 1.5) and print that result with exactly 2 decimal places. The output must be exactly what is shown in Expected Output.

The compiler picks the right add based on the argument types.