Write a program that asks the user to enter some numbers and then find their average using counter-based loop.

C Programming Language Loop control in C Language (Article) Loop control in C Language (Program)

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Program:

<span class="com">#include</span><span class="pln"> </span><span class="str">&lt;stdio.h&gt;</span><span class="pln">
</span><span class="kwd">int</span><span class="pln"> main</span><span class="pun">()</span><span class="pln">
</span><span class="pun">{</span><span class="pln">
</span><span class="kwd">int</span><span class="pln"> n</span><span class="pun">,</span><span class="pln"> a</span><span class="pun">,</span><span class="pln"> c</span><span class="pun">=</span><span class="lit">1</span><span class="pun">,</span><span class="pln">s</span><span class="pun">=</span><span class="lit">0</span><span class="pun">;</span><span class="pln">
</span><span class="kwd">float</span><span class="pln"> avg</span><span class="pun">;</span><span class="pln">
printf</span><span class="pun">(</span><span class="str">"\n HOW MANY NUMBERS?"</span><span class="pun">);</span><span class="pln">
scanf</span><span class="pun">(</span><span class="str">"%d"</span><span class="pun">,</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln">n</span><span class="pun">);</span><span class="pln">

</span><span class="kwd">while</span><span class="pun">(</span><span class="pln">c</span><span class="pun">&lt;=</span><span class="pln">n</span><span class="pun">)</span><span class="pln">
</span><span class="pun">{</span><span class="pln">
 printf</span><span class="pun">(</span><span class="str">"\n Enter the number: "</span><span class="pun">);</span><span class="pln">
 scanf</span><span class="pun">(</span><span class="str">"%d"</span><span class="pun">,</span><span class="pln"> </span><span class="pun">&amp;</span><span class="pln">a</span><span class="pun">);</span><span class="pln">
 s</span><span class="pun">+=</span><span class="pln">a</span><span class="pun">;</span><span class="pln">
 c</span><span class="pun">++;</span><span class="pln">
</span><span class="pun">}</span><span class="pln">
 avg</span><span class="pun">=(</span><span class="kwd">float</span><span class="pun">)</span><span class="pln">s</span><span class="pun">/</span><span class="pln">n</span><span class="pun">;</span><span class="pln">
 printf</span><span class="pun">(</span><span class="str">" \n AVERAGE IS %f "</span><span class="pun">,</span><span class="pln"> avg</span><span class="pun">);</span><span class="pln">

getch</span><span class="pun">();</span><span class="pln">
</span><span class="kwd">return</span><span class="pln"> </span><span class="lit">0</span><span class="pun">;</span><span class="pln">
</span><span class="pun">}</span>

Output:

Output 1:

 HOW MANY NUMBERS?5

 Enter the number: 1

 Enter the number: 2

 Enter the number: 3

 Enter the number: 4

 Enter the number: 5

 AVERAGE IS 3.000000

Explanation:

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