CPS 1 - Spring, 1997 - Ramm 2/10/97 #11

Chapter 2. Text Manipulation and Algorithm Design

• Loops: "Off by One"

  i := 0;

  while i < 10 do

  begin

  i := i + 1;

  writeln(i);

  end;

  produces same output as:
  

  i := 1;

  while i <= 10 do

  begin

  writeln(i);

  i := i + 1;

  end;

• Loops: Other Ranges

  start := 10;

  stop := 20;

  i := start;

  while i < stop do

  begin

  i := i + 1;

  writeln(i);

  end;

• Tracing

• Loops: I/O Controlled

  readln(start);

  readln(stop);

  i := start;

  while i < stop do

  begin

  i := i + 1;

  writeln(i);

  end;