A mechanical engineer confused if IF ELSE statement can do this

Replies

• 

  HirenBarbhaya

  I am little confused about the question itself...
  
  If you wanna give second try then what you have written is correct... Seems fine to me... nothing wrong in it..
• 

  Manish Goyal

  very nice question vipan. Just add this function "flushall()" after else .
  
  Here is the reason when compiler encounters first scanf("%c",&ans);
  you will press say 'a' and then press enter ,compiler will consider your input as "a\n" ,thus here second scanf will take "\n" as its input and hence it will not wait for second input, if you put answer wrong ,so in order to ensure fine working of program ,you have to clear your input buffer and for that use flushall().
• 

  vipandeep

  Thanks for the answers.
  
  I am using Xcode in mac. when i added flushall() it comes up with an error "warning: implicit declaration of function 'flushall'
  I dont trust Xcode because it shows same warning for system("PAUSE").
  any idea?
• 

  Leo

  Hi Vipin try using fflush(stdin) or you can create your own flush function like this,
  
  void flush()
  {
  char *str;
  str=(stdin);
  return;
  }
  
  And system("PAUSE") is not error, pause is not system command for mac it is system command for windows. Xcode is perfectly fine standard compiler, you need little practice to differentiate between Linux, UNIX and Windows system commands, thats it nothing else.
• 

  vipandeep

  Thanks Leo.... fflush(stdin) works well 😀