#+title: Notes
* i guess let's generate all possible? and short circuit when they are not matching mask
how do i generate all possible?

i take length of the mask, that's max size
then for each step, either put . or put n # from the input.

add to current string, and do 2 recursive calls, one with diminished 'queue', one with same
* wrong answer on input
it's too high

and log shows:

2023/12/12 15:07:52 for line ???#?.?#?#.?#???#..? blocks [4 4 5 1] matches 2

and it should be 0
** huh, nope this looks good:
	testMask := "???#?.?#?#.?#???#..?"
	testBlocks := []int{4,4,5,1}
    testVariants := generatePermutations("", len(testMask), testBlocks, 14, testMask)
	fmt.Printf("for mask %s and blocks %+v\n", testMask, testBlocks)
	fmt.Println(testVariants)

    for mask ???#?.?#?#.?#???#..? and blocks [4 4 5 1]
[####..####..#####..# .####.####..#####..#]
** let's check this : for line ??????#???????? blocks [7 2] matches 21
** or this for line ?????.??#????? blocks [3 3 2 1] matches 3
looks ok
** this for line ??..??#?????#?##? blocks [1 1 1 1 4] matches 15
looks good
** for line ?#??#??#???.??.??.? blocks [1 2 3 1 1 1] matches 20
seems ok
** for line ???????#??.????####? blocks [1 1 1 1 1 6] matches 58
bingo?

for mask ???????#??.????####? and blocks [1 1 1 1 1 6]
#.#.#..#.#.######...
#.#.#..#.#..######..
#.#.#..#.#...######.
#.#.#..#.#....######
#.#.#..#...#.######.
#.#.#..#...#..######
#.#.#..#....#.######
#.#..#.#.#.######...
#.#..#.#.#..######..
#.#..#.#.#...######.
#.#..#.#.#....######
#.#..#.#...#.######.
#.#..#.#...#..######
#.#..#.#....#.######
#.#....#.#.#.######.
#.#....#.#.#..######
#.#....#.#..#.######
#..#.#.#.#.######...
#..#.#.#.#..######..
#..#.#.#.#...######.
#..#.#.#.#....######
#..#.#.#...#.######.
#..#.#.#...#..######
#..#.#.#....#.######
#..#...#.#.#.######.
#..#...#.#.#..######
#..#...#.#..#.######
#...#..#.#.#.######.
#...#..#.#.#..######
#...#..#.#..#.######
#....#.#.#.#.######.
#....#.#.#.#..######
#....#.#.#..#.######
.#.#.#.#.#.######...
.#.#.#.#.#..######..
.#.#.#.#.#...######.
.#.#.#.#.#....######
.#.#.#.#...#.######.
.#.#.#.#...#..######
.#.#.#.#....#.######
.#.#...#.#.#.######.
.#.#...#.#.#..######
.#.#...#.#..#.######
.#..#..#.#.#.######.
.#..#..#.#.#..######
.#..#..#.#..#.######
.#...#.#.#.#.######.
.#...#.#.#.#..######
.#...#.#.#..#.######
..#.#..#.#.#.######.
..#.#..#.#.#..######
..#.#..#.#..#.######
..#..#.#.#.#.######.
..#..#.#.#.#..######
..#..#.#.#..#.######
...#.#.#.#.#.######.
...#.#.#.#.#..######
...#.#.#.#..#.######