terminal help

whenever I need to run a program I wrote in c++ I have to type ./ before the program or it wont run. How do I make it so when In terminal instead of ./program all I have to type is program?

>>6
my interpretation:
#include <studio.h>

main( )
  
     void( )
 i=0

  for i=0,i<10,i+
                  +