What is loop counter in c? code example

Example 1: for loop c

for(int i = 0; i<n ;i++) //i is the number of iterations that occur
{						 //n is the total number of iterations
 //code here
}

Example 2: for statement in c

for(int i=0; i<10; i++)
  printf("%d ", i)  /* displays:  0 1 2 3 4 5 6 7 8 9 */