in this program of C language we are not using the any king of loop,we are printing the numbers without loop.
int num = 1;
print(num); //it is a function which is calling the value of printnum.
int print(num) //function called from here and here values are defined.
if(num<=100) //number less than equal to 100.
print(num+1); //add 1 to every number after printing it.