Forgot to commit the last few days

2025/Day10/Day10.lua

@@ -0,0 +1,24 @@
+-- Advent of Code 2025 - Day 10 - Bas Grolleman
+require("functions")
+local filename = "Day10/test"
+print("Day 10")
+
+local input = {}
+for line in io.lines(filename) do
+	local switches = string.match(line, "%[([#.]+)%]")
+	local buttons = {}
+	for b in string.gmatch(line, "%(([%d,]+)%)") do
+		local sw = {}
+		for j in string.gmatch(b, "%d+") do
+			table.insert(sw, tonumber(j))
+		end
+		table.insert(buttons, sw)
+	end
+
+	table.insert(input, {
+		switches = switches,
+		buttons = buttons,
+	})
+end
+
+print_table(input)

2025/Day10/test

@@ -0,0 +1,3 @@
+[.##.] (3) (1,3) (2) (2,3) (0,2) (0,1) {3,5,4,7}
+[...#.] (0,2,3,4) (2,3) (0,4) (0,1,2) (1,2,3,4) {7,5,12,7,2}
+[.###.#] (0,1,2,3,4) (0,3,4) (0,1,2,4,5) (1,2) {10,11,11,5,10,5}

2025/Day12/Day12.lua

@@ -0,0 +1,47 @@
+-- Advent of Code 2025 - Day 12 - Bas Grolleman
+require("functions")
+print("Day 12")
+local filename = "Day12/test"
+local input = file_lines_to_table(filename)
+
+function parseInput(lines)
+	local packages = {}
+	local locations = {}
+
+	-- Parse first dataset (patterns 0-5)
+	local pattern = {}
+	local patternNum = -1
+
+	for i, line in ipairs(lines) do
+		if line:match("^%d:$") then
+			-- New pattern number
+			patternNum = tonumber(line:sub(1, 1))
+			pattern = {}
+		elseif line:match("^[%.#]+$") and #line == 3 and patternNum ~= -1 then
+			-- Pattern row
+			table.insert(pattern, line)
+			if #pattern == 3 then
+				packages[patternNum] = pattern
+			end
+		end
+	end
+
+	-- Parse second dataset (dimension and coordinate data)
+	for i, line in ipairs(lines) do
+		local x, y, coords = line:match("^(%d+)x(%d+):%s+(.+)$")
+		if x and y then
+			local data = { x = tonumber(x), y = tonumber(y), coords = {} }
+			for num in coords:gmatch("%d+") do
+				table.insert(data.coords, tonumber(num))
+			end
+			table.insert(locations, data)
+		end
+	end
+
+	return packages, locations
+end
+
+local shapes, locations = parseInput(input)
+
+print_table(shapes)
+print_table(locations)

2025/Day12/test

@@ -0,0 +1,33 @@
+0:
+###
+##.
+##.
+
+1:
+###
+##.
+.##
+
+2:
+.##
+###
+##.
+
+3:
+##.
+###
+##.
+
+4:
+###
+#..
+###
+
+5:
+###
+.#.
+###
+
+4x4: 0 0 0 0 2 0
+12x5: 1 0 1 0 2 2
+12x5: 1 0 1 0 3 2

2025/Day7/Day7.lua

@@ -33,3 +33,48 @@ for R = 2, rows do
 end
 print("Total splits " .. splits)
 print("Total quantumsplits " .. quantumsplits)
+
+-- Okay, time to learn how to make a tree node
+-- Great, I learned how to try a brute force (that will obviously never work)
+
+function createNode(col)
+	local node = {
+		col = col,
+		childeren = {},
+	}
+	return node
+end
+
+local root = createNode(math.ceil(cols / 2))
+
+local active_nodes = { root }
+
+for row = 2, rows do
+	for k, n in ipairs(active_nodes) do
+		if next(n.childeren) == nil then
+			if input[row][n.col] == "^" then
+				local a = createNode(n.col - 1)
+				local b = createNode(n.col + 1)
+				table.insert(active_nodes, a)
+				table.insert(active_nodes, b)
+				n.childeren = { a, b }
+			end
+		end
+	end
+end
+
+local gt = 0
+function count_table(t, indent)
+	indent = indent or ""
+	print(indent .. "c" .. t.col)
+	if next(t.childeren) ~= nil then
+		for k, v in pairs(t.childeren) do
+			count_table(v, indent .. "  ")
+		end
+	else
+		gt = gt + 1
+	end
+end
+
+count_table(root)
+print("Grand Total " .. gt)

2025/Day8/Day8.lua

@@ -0,0 +1,121 @@
+-- Advent of Code 2025 - Day 8 - Bas Grolleman
+require("functions")
+
+-- Variables
+local boxes = {}
+local inputfile = "Day8/test"
+local limit = 11
+
+function distance(p1, p2)
+	return math.sqrt((p2.x - p1.x) ^ 2 + (p2.y - p1.y) ^ 2 + (p2.z - p1.z) ^ 2)
+end
+function boxes.find(id)
+	for i, box in ipairs(boxes) do
+		if box.id == id then
+			return box
+		end
+	end
+end
+
+local id_counter = 0
+for line in io.lines(inputfile) do
+	local x, y, z = line:match("(%d+)%,(%d+)%,(%d+)")
+	id_counter = id_counter + 1
+	local box = {
+		id = id_counter,
+		x = tonumber(x),
+		y = tonumber(y),
+		z = tonumber(z),
+		xyz = x .. "," .. y .. "," .. z,
+	}
+	table.insert(boxes, box)
+end
+
+local distance_table = {}
+for i, box1 in ipairs(boxes) do
+	for j, box2 in ipairs(boxes) do
+		if box1.id ~= box2.id then
+			table.insert(distance_table, {
+				id1 = box1.id,
+				id2 = box2.id,
+				d = distance(box1, box2),
+			})
+		end
+	end
+end
+table.sort(distance_table, function(a, b)
+	return a.d < b.d
+end)
+
+local circuit = 0
+for i, dt in ipairs(distance_table) do
+	box1 = boxes.find(dt.id1)
+	box2 = boxes.find(dt.id2)
+	if limit > 0 then
+		io.write(string.format("%2d Linking %2d <-> %2d %.0f", limit, box1.id, box2.id, dt.d))
+		if box1.c == nil and box2.c == nil then
+			circuit = circuit + 1
+			box1.c = circuit
+			box2.c = circuit
+			limit = limit - 1
+			print(" C=" .. circuit .. " BOTH")
+		elseif box1.c ~= nil and box2.c ~= nil then
+			if box1.c == box2.c then
+				print(" C=" .. box1.c .. " ALREADY")
+			else
+				-- Oh look, we merge 2 circuits!
+				print(" Merging " .. box1.c .. " and " .. box2.c)
+				local remove = box2.c
+				for k, uc in ipairs(boxes) do
+					if uc.c == remove then
+						uc.c = box1.c
+					end
+				end
+				limit = limit - 1
+			end
+		elseif box1.c == nil then
+			box1.c = box2.c
+			limit = limit - 1
+			print(" C=" .. box1.c .. " HOOK BOX1")
+		elseif box2.c == nil then
+			box2.c = box1.c
+			limit = limit - 1
+			print(" C=" .. box1.c .. " HOOK BOX2")
+		end
+	end
+end
+for k, box in ipairs(boxes) do
+	if box.c == nil then
+		circuit = circuit + 1
+		box.c = circuit
+	end
+end
+table.sort(boxes, function(a, b)
+	return a.c < b.c
+end)
+
+local lc = 0
+local circuit_size = {}
+
+for k, box in ipairs(boxes) do
+	if lc ~= box.c then
+		circuit_size[box.c] = 1
+		print()
+	else
+		circuit_size[box.c] = circuit_size[box.c] + 1
+	end
+	print(string.format("Box %2d Circuit %2d", box.id, box.c))
+	lc = box.c
+end
+
+print()
+local circuit_size2 = {}
+for k, v in pairs(circuit_size) do
+	circuit_size2[#circuit_size2 + 1] = v
+end
+table.sort(circuit_size2, function(a, b)
+	return b < a
+end)
+print_table(circuit_size2)
+local total = circuit_size2[1] * circuit_size2[2] * circuit_size2[3]
+print("Total size " .. total)

2025/Day8/test

@@ -0,0 +1,20 @@
+162,817,812
+57,618,57
+906,360,560
+592,479,940
+352,342,300
+466,668,158
+542,29,236
+431,825,988
+739,650,466
+52,470,668
+216,146,977
+819,987,18
+117,168,530
+805,96,715
+346,949,466
+970,615,88
+941,993,340
+862,61,35
+984,92,344
+425,690,689

2025/Day9/Day9.lua

@@ -0,0 +1,38 @@
+-- Advent of Code 2025 - Day 9 - Bas Grolleman
+require("functions")
+local filename = "Day9/full"
+local grid = {}
+for line in io.lines(filename) do
+	local y, x = line:match("(%d+),(%d+)")
+	table.insert(grid, {
+		x = x,
+		y = y,
+	})
+end
+
+function size(p1, p2)
+	width = math.abs(p1.x - p2.x) + 1
+	height = math.abs(p1.y - p2.y) + 1
+	-- print(p1.x .. "," .. p1.y)
+	-- print(p2.x .. "," .. p2.y)
+	-- print(width .. " " .. height .. " " .. (width * height))
+	return width * height
+end
+
+testsize = size({ y = 2, x = 5 }, { y = 9, x = 7 })
+print("Testing size function 24=" .. testsize)
+
+local distance = {}
+local biggest = 0
+for k1, p1 in ipairs(grid) do
+	for k2, p2 in ipairs(grid) do
+		if k1 ~= k2 then
+			local cs = size(p1, p2)
+			if biggest < cs then
+				biggest = cs
+			end
+		end
+	end
+end
+
+print(biggest)

2025/Day9/full

@@ -0,0 +1,496 @@
+97729,50076
+97729,51296
+98101,51296
+98101,52489
+97579,52489
+97579,53685
+97384,53685
+97384,54923
+97657,54923
+97657,56098
+97277,56098
+97277,57409
+97852,57409
+97852,58618
+97645,58618
+97645,59701
+96827,59701
+96827,60852
+96428,60852
+96428,62206
+96833,62206
+96833,63257
+96052,63257
+96052,64547
+96106,64547
+96106,65579
+95339,65579
+95339,66656
+94752,66656
+94752,67793
+94338,67793
+94338,68893
+93832,68893
+93832,70114
+93592,70114
+93592,71373
+93395,71373
+93395,72293
+92512,72293
+92512,73343
+91897,73343
+91897,74242
+91030,74242
+91030,75264
+90388,75264
+90388,76716
+90396,76716
+90396,77746
+89728,77746
+89728,78469
+88640,78469
+88640,79328
+87763,79328
+87763,80435
+87203,80435
+87203,81197
+86222,81197
+86222,82422
+85771,82422
+85771,83450
+85076,83450
+85076,83997
+83888,83997
+83888,84863
+83033,84863
+83033,85583
+82044,85583
+82044,86146
+80930,86146
+80930,87054
+80114,87054
+80114,88207
+79476,88207
+79476,88953
+78507,88953
+78507,89100
+77121,89100
+77121,89998
+76268,89998
+76268,90730
+75296,90730
+75296,91491
+74334,91491
+74334,91877
+73156,91877
+73156,92965
+72355,92965
+72355,93193
+71101,93193
+71101,93307
+69814,93307
+69814,94481
+69003,94481
+69003,94404
+67654,94404
+67654,94590
+66433,94590
+66433,94972
+65291,94972
+65291,95684
+64252,95684
+64252,95764
+63015,95764
+63015,96481
+61954,96481
+61954,97016
+60830,97016
+60830,96824
+59544,96824
+59544,96933
+58333,96933
+58333,97466
+57193,97466
+57193,97519
+55974,97519
+55974,98063
+54809,98063
+54809,98051
+53581,98051
+53581,97553
+52334,97553
+52334,97651
+51130,97651
+51130,98457
+49921,98457
+49921,98089
+48703,98089
+48703,98198
+47477,98198
+47477,98066
+46261,98066
+46261,98211
+45018,98211
+45018,97340
+43893,97340
+43893,96940
+42731,96940
+42731,97610
+41387,97610
+41387,97167
+40227,97167
+40227,96442
+39144,96442
+39144,96129
+37976,96129
+37976,96233
+36690,96233
+36690,95418
+35669,95418
+35669,95333
+34422,95333
+34422,94652
+33380,94652
+33380,94747
+32041,94747
+32041,93698
+31163,93698
+31163,93766
+29805,93766
+29805,93324
+28661,93324
+28661,92231
+27853,92231
+27853,91580
+26833,91580
+26833,90938
+25812,90938
+25812,90666
+24561,90666
+24561,90109
+23472,90109
+23472,89249
+22587,89249
+22587,88900
+21338,88900
+21338,87845
+20608,87845
+20608,86871
+19836,86871
+19836,86651
+18433,86651
+18433,85795
+17555,85795
+17555,85033
+16590,85033
+16590,83979
+15910,83979
+15910,82931
+15244,82931
+15244,82259
+14177,82259
+14177,81450
+13244,81450
+13244,79962
+13133,79962
+13133,79066
+12324,79066
+12324,78215
+11445,78215
+11445,77562
+10264,77562
+10264,76568
+9545,76568
+9545,75571
+8826,75571
+8826,74348
+8484,74348
+8484,73127
+8174,73127
+8174,71929
+7853,71929
+7853,71119
+6768,71119
+6768,70177
+5898,70177
+5898,69010
+5503,69010
+5503,67775
+5291,67775
+5291,66490
+5254,66490
+5254,65440
+4588,65440
+4588,64229
+4390,64229
+4390,63161
+3719,63161
+3719,61906
+3707,61906
+3707,60884
+2748,60884
+2748,59625
+2777,59625
+2777,58428
+2533,58428
+2533,57250
+2158,57250
+2158,56013
+2166,56013
+2166,54801
+2012,54801
+2012,53548
+2396,53548
+2396,52345
+2224,52345
+2224,51147
+1656,51147
+1656,50072
+94821,50072
+94821,48704
+1947,48704
+1947,47473
+1714,47473
+1714,46314
+2606,46314
+2606,45085
+2429,45085
+2429,43818
+2078,43818
+2078,42673
+2686,42673
+2686,41423
+2588,41423
+2588,40315
+3254,40315
+3254,39122
+3467,39122
+3467,37842
+3353,37842
+3353,36687
+3756,36687
+3756,35489
+4009,35489
+4009,34425
+4674,34425
+4674,33261
+5026,33261
+5026,32299
+5893,32299
+5893,30932
+5763,30932
+5763,29853
+6339,29853
+6339,28853
+7065,28853
+7065,27792
+7653,27792
+7653,26722
+8221,26722
+8221,25751
+8958,25751
+8958,24347
+8992,24347
+8992,23553
+10012,23553
+10012,22792
+11043,22792
+11043,21448
+11249,21448
+11249,20320
+11784,20320
+11784,19298
+12470,19298
+12470,18383
+13291,18383
+13291,17538
+14186,17538
+14186,16973
+15368,16973
+15368,16305
+16413,16305
+16413,15189
+17016,15189
+17016,14061
+17635,14061
+17635,13278
+18578,13278
+18578,12499
+19523,12499
+19523,11649
+20413,11649
+20413,11087
+21522,11087
+21522,10687
+22731,10687
+22731,9652
+23501,9652
+23501,8892
+24469,8892
+24469,8416
+25611,8416
+25611,7694
+26607,7694
+26607,7717
+27999,7717
+27999,7221
+29101,7221
+29101,5974
+29857,5974
+29857,6014
+31208,6014
+31208,5324
+32237,5324
+32237,4797
+33341,4797
+33341,4546
+34545,4546
+34545,4275
+35734,4275
+35734,3822
+36867,3822
+36867,3473
+38033,3473
+38033,3316
+39245,3316
+39245,3285
+40478,3285
+40478,2410
+41549,2410
+41549,2176
+42752,2176
+42752,2354
+44009,2354
+44009,2339
+45230,2339
+45230,1651
+46396,1651
+46396,2515
+47668,2515
+47668,2238
+48866,2238
+48866,1731
+50077,1731
+50077,1760
+51300,1760
+51300,2114
+52505,2114
+52505,1767
+53751,1767
+53751,2525
+54904,2525
+54904,2175
+56169,2175
+56169,2272
+57390,2272
+57390,2287
+58630,2287
+58630,2843
+59770,2843
+59770,3189
+60941,3189
+60941,3339
+62161,3339
+62161,3636
+63346,3636
+63346,4379
+64394,4379
+64394,4452
+65650,4452
+65650,5365
+66612,5365
+66612,5912
+67693,5912
+67693,6101
+68922,6101
+68922,6848
+69911,6848
+69911,7300
+71030,7300
+71030,7134
+72478,7134
+72478,8240
+73266,8240
+73266,8910
+74277,8910
+74277,8894
+75713,8894
+75713,9778
+76601,9778
+76601,10262
+77753,10262
+77753,11519
+78351,11519
+78351,12051
+79472,12051
+79472,12886
+80361,12886
+80361,13859
+81126,13859
+81126,14157
+82487,14157
+82487,15284
+83106,15284
+83106,15908
+84201,15908
+84201,17230
+84585,17230
+84585,18173
+85341,18173
+85341,18808
+86452,18808
+86452,19633
+87364,19633
+87364,20943
+87663,20943
+87663,21458
+89000,21458
+89000,22587
+89520,22587
+89520,23435
+90448,23435
+90448,24516
+91031,24516
+91031,25468
+91826,25468
+91826,26924
+91732,26924
+91732,27979
+92322,27979
+92322,28858
+93275,28858
+93275,29960
+93800,29960
+93800,31074
+94298,31074
+94298,32188
+94798,32188
+94798,33493
+94789,33493
+94789,34651
+95141,34651
+95141,35573
+96241,35573
+96241,36887
+96106,36887
+96106,38070
+96380,38070
+96380,39184
+96949,39184
+96949,40315
+97514,40315
+97514,41545
+97610,41545
+97610,42787
+97591,42787
+97591,44060
+97244,44060
+97244,45256
+97407,45256
+97407,46404
+98233,46404
+98233,47631
+98240,47631
+98240,48860
+98007,48860
+98007,50076

2025/Day9/test

@@ -0,0 +1,8 @@
+7,1
+11,1
+11,7
+9,7
+9,5
+2,5
+2,3
+7,3

2025/autorun.lua

@@ -4,8 +4,9 @@ vim.api.nvim_create_autocmd("BufWritePost", {
 	group = vim.api.nvim_create_augroup("AutoRunCode", { clear = true }),
 	pattern = "*.lua",
 	callback = function()
-		local bufnr = 21
+		local day = 12
-		vim.fn.jobstart({ "lua", "Day7/Day7.lua" }, {
+		local bufnr = 43
+		vim.fn.jobstart({ "lua", "Day" .. day .. "/Day" .. day .. ".lua" }, {
 			stdout_buffered = true,
 			on_stdout = function(_, data)
 				if data then

2025/functions.lua

@@ -26,3 +26,15 @@ function tablelength(T)
 	end
 	return count
 end
+
+function print_table(t, indent)
+	indent = indent or ""
+	for k, v in pairs(t) do
+		if type(v) == "table" then
+			print(indent .. k .. ":")
+			print_table(v, indent .. "  ")
+		else
+			print(indent .. k .. ": " .. tostring(v))
+		end
+	end
+end