1. Kochan, Chapter 9, Problem 4, on writing a function called substring() .

2. Write a program that reads an input file of several lines, fetches and prints the first word from each line and discards the rest of the line. A word is defined as a sequence of characters, separated by spaces, tabs or newlines. As an example, if the input file is Cauchy.dat , you would fetch the first line and print Baron , then you would fetch the second line and print the word first and so forth.

*This problem is for C++ programming using Visual Studio 2017