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Jul 17th, 2018
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  1. int ret = 0;
  2.  
  3. do {
  4.   fopen(...);
  5.  
  6.   if(/* Error */){
  7.     ret = 1; break;
  8.   }
  9.   do {
  10.     malloc(...);
  11.  
  12.     if(/* Error */){
  13.       ret = 2; break;
  14.     }
  15.  
  16.     do {
  17.       parseInt(...);
  18.      if(/* Error */){
  19.     ret = 3; break;
  20.      }
  21.    } while(0);
  22.  
  23.   free(...);
  24. } while(0);
  25.  
  26. fclose(...);
  27.  
  28. return ret;
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