ocaml, 175 bytes

Result

AC

Duration

856ms

Code [DL]

open String
let l=ref 0
let rec r z=r(read_line()|>fun s->let i=try index s 'K'with _->try l:=index s 'T';!l with _-> !l in print_endline(make i ' '^make(!l-i+1)'*'))let()=r()

stdin

                                                 T
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                                                  
                             K                    

stdout

                                                 *
                                                 *
                                                 *
                                                 *
                                                 *
                                                 *
                                                 *
                                                 *
                                                 *
                                                 *
                                                 *
                                                 *
                                                 *
                                                 *
                                                 *
                                                 *
                                                 *
                                                 *
                                                 *
                                                 *
                                                 *
                             *********************

stderr

Exception: End_of_file.

strace