Write a C program that converts temperatures between Celsius and Fahrenheit. The

program should:

$$ Use global variables to store the user's choice of conversion $($Celsius to Fahrenheit

or Fahrenheit to Celsius$)$ and the temperature input.

$$ Use local variables for the results of the conversion.

$$ Use conditional statements $($if$-$else$)$ to decide which conversion to perform based

on the user's choice.

$$ Ensure that the program provides correct results based on the selected conversion.