gcc - throwing away tens & hundreds columns of an int in C -


I want to test an integer value for my unit column value, I do not care about tens or hundreds of columns. The int value is a countdown timer

So when the units column is 0 to 4, I want to display something in the screen, when the units are from 5 to 9, then I want to show the screen a bit more. I basically want to separate the units column value

without thinking of dividing by 100, one can not think of a quick and dirty way to do this and reduce the number of 100 to 10 with the number .

So far I am trying: 

  int zero_count_units = a_zero_count - (an easy way to transfer and test for 0 to 4 or 5 to 9 in the unit column Is ((A_zero_count / 100) * 100) + ((a_zero_count / 10) * 10)); If ((zero_count_yats> = 0) & amp; amp; amp; amp; amp; (0x;) // 5-9 unit column {}   
 My brain is not working very well this morning! Thanks very much any advice!   
 
 
 You must use the %  () operator for expression  n  and  m   n% m  is separated by  n .  
 In your case  m  will be 10, because You divide into ten Since you are interested in remaining:  
  const int Suny_gn_ank = a_zero_count% 10;

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