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program array_slice_04
implicit none
integer :: i, j
integer :: array1(10)
integer :: array2(10, 10)
real, allocatable :: y(:)
allocate(y(13))
y = [(real(i - 1, 4)**2, i = 1, 13)]
print *, y(2:12:2)
if( any(y(2:12:2) /= [1.0, 9.0, 25.0, 49.0, 81.0, 121.0]) ) error stop
array1 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
print *, array1(1:10)
if( any(array1(1:10) /= [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]) ) error stop
print *, array1(10:1:-1)
if( any(array1(10:1:-1) /= [10, 9, 8, 7, 6, 5, 4, 3, 2, 1]) ) error stop
array1 = [(i, i = 1, 10)]
array1(:) = 0
array1(1:5) = 1
array1(6:) = 1
do i = 1, 10
do j = 1, 10
array2(i, j) = i * j
end do
end do
print *, array1(1)
if( array1(1) /= 1 ) error stop
print *, array1(1:10:2)
if( any(array1(1:10:2) /= [1, 1, 1, 1, 1]) ) error stop
print *, array2(:, 3)
if( any(array2(:, 3) /= [3, 6, 9, 12, 15, 18, 21, 24, 27, 30]) ) error stop
print *, array1(10:1:-1)
if( any(array1(10:1:-1) /= [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]) ) error stop
end program array_slice_04
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