title: Project Euler #8 c++ from beginner
body: <h2>I Don't Understand why I am not getting the correct answer to this problem</h2>
  
  <p>I just started c++ and my friends told me about projecteuler so I started doing its questions.</p>
  
  <p><strong>Question 8 is:</strong></p>
  
  <p>Find the greatest product of five consecutive digits in the 1000-digit number.</p>
  
  <p>73167176531330624919225119674426574742355349194934
  96983520312774506326239578318016984801869478851843
  85861560789112949495459501737958331952853208805511
  12540698747158523863050715693290963295227443043557
  66896648950445244523161731856403098711121722383113
  62229893423380308135336276614282806444486645238749
  30358907296290491560440772390713810515859307960866
  70172427121883998797908792274921901699720888093776
  65727333001053367881220235421809751254540594752243
  52584907711670556013604839586446706324415722155397
  53697817977846174064955149290862569321978468622482
  83972241375657056057490261407972968652414535100474
  82166370484403199890008895243450658541227588666881
  16427171479924442928230863465674813919123162824586
  17866458359124566529476545682848912883142607690042
  24219022671055626321111109370544217506941658960408
  07198403850962455444362981230987879927244284909188
  84580156166097919133875499200524063689912560717606
  05886116467109405077541002256983155200055935729725
  71636269561882670428252483600823257530420752963450.</p>
  
  <p><strong>This is my Code:</strong></p>
  
  <pre><code>#include &lt;iostream&gt;
  int main()
  {
  char num[]  ="7316717653133062491922511967442657474235534919493496983520312774506326239578318016984801869478851843858615607891129494954595017379583319528532088055111254069874715852386305071569329096329522744304355766896648950445244523161731856403098711121722383113622298934233803081353362766142828064444866452387493035890729629049156044077239071381051585930796086670172427121883998797908792274921901699720888093776657273330010533678812202354218097512545405947522435258490771167055601360483958644670632441572215539753697817977846174064955149290862569321978468622482839722413756570560574902614079729686524145351004748216637048440319989000889524345065854122758866688116427171479924442928230863465674813919123162824586178664583591245665294765456828489128831426076900422421902267105562632111110937054421750694165896040807198403850962455444362981230987879927244284909188845801561660979191338754992005240636899125607176060588611646710940507754100225698315520005593572972571636269561882670428252483600823257530420752963450";
  int a, b, c, d = 0;
  for (a = 0; a&lt;=995; a++)
  {
      c = 1;
      for (b = 0; b&lt;=4; b++)
      {
          c *= num[a+b];
      }
  
      if (c &gt; d) d = c;
  }
  
  std::cout&lt;&lt;d&lt;&lt;std::endl;
  system ("pause");
  return 0;
  }
  </code></pre>
  
  <p>Unfortunately it spits out 570394440. Not only is this incorrect, but its way too big. I am having trouble finding the problem in my code, and solution to the problem.</p>
  
  <p><em>Any help is appreciated!</em></p>