整數s | i: 0 _ _ | 索引 Of Last |
i: y is list of 整數s from -y to y .
Thus:i: 3 _3 _2 _1 0 1 2 3 i: _2 2 1 0 _1 _2 i: 0 0 |
i: is like i. but gives 索引 of
last occurrence.
|
1 2 3 4 1 2 3 i: 1 2 2 3 3 3 4 4 5 4 5 5 6 6 6 3 3 7 1 2 3 4 1 2 3 i. 1 2 2 3 3 3 4 4 5 0 1 1 2 2 2 3 3 7 (i.~ ,: i:~) 'boustrophedonic' 0 1 2 3 4 5 1 7 8 9 10 1 12 13 14 0 11 2 3 4 5 11 7 8 9 10 11 12 13 14 (3 # i.3 4) i: (i.2 4) 2 5 (3 # i.3 4) i. (i.2 4) 0 3