C/the.ansi.c.programming.language/c.programming.notes/homework/PS1.html

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   9 <title>Assignment #1</title>
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  12 <H1>Assignment #1</H1>
  13
  14
  15
  16
  17
  18 <B>Introductory C Programming
  19 <br>
  20 <br>
  21 UW Experimental College
  22 </B><br>
  23 <br>
  24 <B>Assignment #1
  25 </B><p><B>Handouts:
  26 </B></p><p>Syllabus
  27 <br><a href="PS1.html">Assignment #1</a>
  28 <br><a href="http://www.eskimo.com/~scs/cclass/progintro/top.html">A Short Introduction to Programming</a>
  29 <br><a href="http://www.eskimo.com/~scs/cclass/mathintro/top.html">A Brief Refresher on Some Math Often Used in Computing</a>
  30 <br><a href="http://www.eskimo.com/~scs/cclass/notes/sx1.html">Class Notes, Chapter 1</a>
  31 <br><a href="http://www.eskimo.com/~scs/cclass/notes/sx2.html">Class Notes, Chapter 2</a>
  32 <br><a href="http://www.eskimo.com/~scs/cclass/handouts/avcompilers/index.html">Available Compiler Options</a>
  33 <br><a href="http://www.eskimo.com/~scs/cclass/handouts/errmsgs/top.html">Common Compiler Error Messages and Other Problems</a>
  34 <br><a href="http://www.eskimo.com/~scs/cclass/handouts/cstepbystep/index.html">Compiling C Programs: Step by Step</a>
  35 <p><B>Reading Assignment:
  36 </B></p><p><a href="http://www.eskimo.com/~scs/cclass/progintro/top.html">A Short Introduction to Programming</a>
  37 <br><a href="http://www.eskimo.com/~scs/cclass/notes/sx1.html">Class Notes, Chapter 1</a>
  38 <br><a href="http://www.eskimo.com/~scs/cclass/notes/sx2.html">Class Notes, Chapter 2</a> (optional)
  39 <br><a href="http://www.eskimo.com/~scs/cclass/handouts/cstepbystep/index.html">Compiling C Programs: Step by Step</a>
  40 <p><B>Review Questions:
  41 </B></p><OL><li>Approximately what is the line <TT>#include &lt;stdio.h&gt;</TT>
  42 at the top of a C source file for?
  43 <li>What are some uses for comments?
  44 <li>Why is indentation important?
  45 How carefully does the compiler pay attention to it?
  46 <li>What are the largest and smallest values that can be reliably
  47 stored in a variable of type <TT>int</TT>?
  48 <li>What is the difference between the constants
  49 <TT>7</TT>, <TT>'7'</TT>, and <TT>"7"</TT>?
  50 <li>What is the difference between the constants
  51 <TT>123</TT> and <TT>"123"</TT>?
  52 <li>What is the function of the semicolon in a C statement?
  53 </OL><p><B>Exercises:
  54 </B>(easy to harder; do as many as you like, but at least two)
  55 <p>1.
  56 Get the ``Hello, world!'' program to work on your computer.
  57 If you're using a Unix machine, the instructions in the notes should
  58 get you started.
  59 If you're using a commercial compiler on a home
  60 computer, the compiler's instruction manuals should (really, <em>must</em>)
  61 tell you how to enter, compile, and run a program.
  62 (In either case, the
  63 ``<a href="http://www.eskimo.com/~scs/cclass/handouts/csstepbystep/top.html">Compiling C Programs</a>''
  64 handout should help, too.)
  65 <p>2.
  66 What do these loops print?
  67 <pre>
  68 for(i = 0; i &lt; 10; i = i + 2)
  69         printf("%d\n", i);
  70 </pre>
  71 <pre>
  72 for(i = 100; i &gt;= 0; i = i - 7)
  73         printf("%d\n", i);
  74 </pre>
  75 <pre>
  76 for(i = 1; i &lt;= 10; i = i + 1)
  77         printf("%d\n", i);
  78 </pre>
  79 <pre>
  80 for(i = 2; i &lt; 100; i = i * 2)
  81         printf("%d\n", i);
  82 </pre>
  83 <p>3.
  84 Write a program to print the numbers from 1 to 10
  85 and their squares:
  86 <pre>
  87         1       1
  88         2       4
  89         3       9
  90         ...
  91         10      100
  92 </pre>
  93 <p>4.
  94 Write a program to print this triangle:
  95 <pre>
  96         *
  97         **
  98         ***
  99         ****
 100         *****
 101         ******
 102         *******
 103         ********
 104         *********
 105         **********
 106 </pre>
 107 Don't use ten <TT>printf</TT> statements; use two nested loops instead.
 108 You'll have to use braces around the body of the outer loop if
 109 it contains multiple statements:
 110 <pre>
 111         for(i = 1; i &lt;= 10; i = i + 1)
 112                 {
 113                 /* multiple statements */
 114                 /* can go in here */
 115                 }
 116 </pre>
 117 (Hint: a string you hand to <TT>printf</TT> does not have to contain the
 118 newline character <TT>\n</TT>.)
 119 </p><hr>
 120 <hr>
 121 <p>
 122 This page by <a href="http://www.eskimo.com/~scs/">Steve Summit</a>
 123 // <a href="copyright.html">Copyright</a> 1995-9
 124 // <a href="mailto:scs@eskimo.com">mail feedback</a>
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