Initial data commit

Task/Time-a-function/Fortran/time-a-function.f

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+c The subroutine to analyze
+      subroutine do_something()
+c For testing we just do nothing for 3 seconds
+      call sleep(3)
+      return
+      end
+
+c Main Program
+      program timing
+      integer(kind=8) start,finish,rate
+      call system_clock(count_rate=rate)
+      call system_clock(start)
+c Here comes the function we want to time
+      call do_something()
+      call system_clock(finish)
+      write(6,*) 'Elapsed Time in seconds:',float(finish-start)/rate
+      return
+      end