mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-11-13 15:41:50 -05:00
28 lines
366 B
Fortran
28 lines
366 B
Fortran
|
subroutine shell(n,a)
|
||
|
|
integer n
|
||
|
|
real a(n)
|
||
|
|
integer i,j,inc
|
||
|
|
real v
|
||
|
|
|
||
|
|
inc=1
|
||
|
|
1 inc=3*inc+1
|
||
|
|
if(inc.le.n) go to 1
|
||
|
|
2 inc=inc/3
|
||
|
|
|
||
|
|
do i=inc+1,n
|
||
|
|
v=a(i)
|
||
|
|
j=i
|
||
|
|
3 if(a(j-inc).gt.v) then
|
||
|
|
a(j)=a(j-inc)
|
||
|
|
j=j-inc
|
||
|
|
if(j.le.inc) go to 4
|
||
|
|
go to 3
|
||
|
|
endif
|
||
|
|
4 a(j)=v
|
||
|
|
enddo
|
||
|
|
|
||
|
|
if(inc.gt.1) go to 2
|
||
|
|
|
||
|
|
return
|
||
|
|
end subroutine shell
|