RosettaCodeData/Task/Josephus-problem/Fortran/josephus-problem.f

23 lines
442 B
Fortran

program josephus
implicit none
integer :: n, i, k, p
integer, allocatable :: next(:)
read *, n, k
allocate(next(0:n - 1))
do i = 0, n - 2
next(i) = i + 1
end do
next(n - 1) = 0
p = 0
do while(next(p) /= p)
do i = 1, k - 2
p = next(p)
end do
print *, "Kill", next(p)
next(p) = next(next(p))
p = next(p)
end do
print *, "Alive", p
deallocate(next)
end program