Suppose a data array has 30 numbers sorted from low to high already, where no two numbers are equal.
We need to search whether any of the two randomly given key numbers, key1 and key2 is in the array. If yes, then find out the position index(es) for them.
To test your program, please create an array with 30 data elements.
Hint: using the binary search subroutine to accomplish this task.