Answer SL38

var: 1   stVar: 1
var: 1   stVar: 2
var: 1   stVar: 3

Comments: Memory for var is freshly allocated on the run-time stack each time foo() is entered. var is initialized to zero each time.

Memory for stVar is allocated just once, when the program first starts running. stVar is initialized just once, at that time. Values assigned to it remain across function calls.

void foo()
{
  int var=0;
  static int stVar=0;
  
  var++ ;
  stVar++ ;
  printf( "var: %d   stVar: %d\n", var, stVar );
}