or not. Use this function to sort a list of
real numbers in an input file to those in the interval 
and those outside this interval. You can write output to console or
to text files. The output of the program is something like this:
1. Write a C++ program that counts the numbers of newline characters, digits and letters in the input file ``in.txt''. The output should clearly show the number of occurrences of each type of character in the file. A sample output is:
linux2:~/PDS/C++$ ./ex2_1 You have 20 lines in your file You have 26 digits in your file You have 19 letters in your file linux2:~/PDS/C++$
2. Write a function of prototype bool f(double x) to check
if or not. Use this function to sort a list of
real numbers in an input file to those in the interval
and those outside this interval. You can write output to console or
to text files. The output of the program is something like this:
linux2:~/PDS/C++$ ./ex2_2 Enter input filename myfile.txt Numbers in the interval (-10,10) -------------------------------- 9.3 4 8.2 5 5 Numbers outside this interval -------------------------------- 12 23 11 34.7 32 18.1 19 29 26 20 22