question about reading temperature in programming C language.

I know In some cases it is better for a program just to keep reading values until the user types in a finishing value such as -100.0

I want to write a new program called temperatures02. Then modify the code to:

initally allocate an array to hold up to5temperatures.

prompt the user to enter temperatures and type the value-100.0 when they finished

if the user fills up the array , the program should

dynamically allocate a new array which is double the size.

copy the old values across to the new array.

deallocate the old array.

continue reading into the new array.

After finish reading array , output the temperatures read in reverse (most recent to oldest).

for example : count =5 input 16.5 18.8 20.5 21.3 16.2 output should be 16.2 21.3 20.5 18.8 16.5