title: switch case (in C)
body: <p>we have 4 regions: <code>a</code> <code>b</code> <code>c</code> <code>d</code></p>
  
  <p>we want to put the numbers in these region.</p>
  
  <p>how to do this using only switch statement:</p>
  
  <pre><code> the number divisible by 10 and divisible by 7 ın region a
   the number divisible by 10 but not divisible by 7 ın region b
   the number not divisible by 10 but divisible by 7 ın region c
   the number not divisible by 10 and divisible by 7 ın region d
  </code></pre>
  
  <p>for example if:</p>
  
  <pre><code>input 770 out put is a
  
  input 200 output b
  
  input 154 output c
  </code></pre>