title: Code::Blocks - Linux - prints "Hello World" even though it isn't in the "main.cpp" file
body: <p>I have recently started a few projects to help me learn C++, I am creating a program that allows the user to enter a grade score /100, the code is as follows:</p>
  
  <pre><code>#include &lt;iostream&gt;
  #include &lt;cstdio&gt;
  #include &lt;cstdlib&gt;
  using namespace std;
  
  int main (gradeScore)
  {
      int gradeScore
      cout &lt;&lt; "Enter your grade score out of 100"
      cin &gt;&gt; gradeScore
  
      if (gradeScore == 100)
      {
          cout &lt;&lt; "Well done! You have achieved a perfect score!.."
      {
  }
  </code></pre>
  
  <p>I tried compiling it just to make sure that it was working so far, however, it opens up the terminal and prints</p>
  
  <pre><code>Hello World! 
  
  Process returned 0 (0x0)    execution time : 0.013 s
  Press ENTER to continue.
  </code></pre>
  
  <p>I'm not sure what to do about it, there's nowhere in the project that contains the string "Hello World" anywhere. Could someone please help me? I just want to be able to carry on my learning without and hinderance like this. </p>
  
  <p>I'm using Code::Blocks 13.12 rev 9501 (2013-12-25 18:25:45) gcc 4.8.2 Linux/unicode - 32 bit (not sure if this is helpful)</p>
  
  <p>Thanks guys. </p>