Lesson 1.1: Hello, world

Lesson 1.9:
Character arrays (1/2)
Programming in C
Prof. Dr. Eike Best
Dr. Elke Wilkeit
September 28, 2002
1 while ( there is another line )
2 if ( it is longer than the previous longest )
3 save it ;
4 save its length ;
5 print longest line
Exercise 1-16. (Error-tolerant longest-line program) Revise the main routine
of the longest-line program so it will correctly print the length of arbitrarily
long lines, and as much as possible of the text.
Exercise 1-17. (Printing lines longer than 80 characters)
to print all input lines that are longer than 80 characters.
Write a program
Exercise 1-18. (Removing trailing invisibles) Write a program to remove
trailing blanks and tabs from each line of input, and to delete entirely blank lines.
Exercise 1-19. (Reversing strings) Write a function reverse(s) that reverses
the character string s. Use it to write a program that reverses its input a line at a
time.