did day10 and day12 part 1

2024/day10/input.text

@@ -0,0 +1,57 @@
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2024/day10/p1.py

@@ -0,0 +1,66 @@
+with open('input.text', 'r') as file:
+    data: list[str] = file.readlines()
+
+topo_map = [[int(c) if c != '.' else -1 for c in line.strip()] for line in data]
+
+x_bound: int = len(topo_map[0]) - 1
+y_bound: int = len(topo_map) - 1
+
+class Coord:
+    x: int
+    y: int
+
+    def __init__(self, x: int, y: int):
+        self.x = x
+        self.y = y
+
+    def __str__(self) -> str:
+        return f'({self.x}, {self.y})'
+
+    def __eq__(self, o) -> bool:
+        return o.x == self.x and o.y == self.y
+
+def in_bounds(c: Coord) -> bool:
+    if c.y > y_bound or c.y < 0:
+        return False
+
+    if c.x > x_bound or c.x < 0:
+        return False
+
+    return True
+
+def score_trail(c: Coord, last: int | None = 0) -> list[Coord]:
+
+    if not in_bounds(c):
+        return None
+
+    v: int = topo_map[c.y][c.x]
+    if v == 9:
+        return [c]
+
+    if v - last != 1 and last != 0:
+        return None
+
+    up, down, left, right = Coord(c.x, c.y - 1), Coord(c.x, c.y + 1), Coord(c.x - 1, c.y), Coord(c.x + 1, c.y)
+
+    nines = []
+
+    for dir in [up, down, left, right]:
+        if in_bounds(dir):
+            if topo_map[dir.y][dir.x] - v == 1:
+                for nine in score_trail(dir, v):
+                    if nine not in nines:
+                        nines.append(nine)
+
+    return nines
+
+total = 0
+for y, line in enumerate(topo_map):
+    for x, n in enumerate(line):
+        if n == 0:
+            total += len(score_trail(Coord(x, y)))
+
+print(total)
+
+
+

2024/day10/p2.py

@@ -0,0 +1,61 @@
+with open('input.text', 'r') as file:
+    data: list[str] = file.readlines()
+
+topo_map = [[int(c) if c != '.' else -1 for c in line.strip()] for line in data]
+
+x_bound: int = len(topo_map[0]) - 1
+y_bound: int = len(topo_map) - 1
+
+class Coord:
+    x: int
+    y: int
+
+    def __init__(self, x: int, y: int):
+        self.x = x
+        self.y = y
+
+    def __str__(self) -> str:
+        return f'({self.x}, {self.y})'
+
+def in_bounds(c: Coord) -> bool:
+    if c.y > y_bound or c.y < 0:
+        return False
+
+    if c.x > x_bound or c.x < 0:
+        return False
+
+    return True
+
+def score_trail(c: Coord, last: int | None = 0) -> int:
+
+    if not in_bounds(c):
+        return 0
+
+    v: int = topo_map[c.y][c.x]
+    if v == 9:
+        return 1
+
+    if v - last != 1 and last != 0:
+        return 0
+
+    up, down, left, right = Coord(c.x, c.y - 1), Coord(c.x, c.y + 1), Coord(c.x - 1, c.y), Coord(c.x + 1, c.y)
+
+    dirs = []
+
+    for dir in [up, down, left, right]:
+        if in_bounds(dir):
+            if topo_map[dir.y][dir.x] - v == 1:
+                dirs.append(score_trail(dir, v))
+
+    return sum(dirs)
+
+total = 0
+for y, line in enumerate(topo_map):
+    for x, n in enumerate(line):
+        if n == 0:
+            total += score_trail(Coord(x, y))
+
+print(total)
+
+
+

2024/day10/test.text

@@ -0,0 +1,8 @@
+89010123
+78121874
+87430965
+96549874
+45678903
+32019012
+01329801
+10456732

2024/day12/input.text

@@ -0,0 +1,140 @@
+DDDDDDDDDDDDDDDDDHHHHHHDDDDBBBBBBBBBBBBBBBBBBBBBBBBBAKAAQQRRRGGGGGGGGZZGAQRQRQQQQQQQCCCCCCCCCCCCCCCZZEZJZZZZZZZZZZZZZZUUUUUUUUUUUUUIIIIIIIII
+DDDDDDDDDDDDDDDDDHHHHDDDDDDBBBBBBBBBBBBBBBBBBBBBBBBAAAAAQQRRRRRRGGGGGGGGAQRQQQQQQQQQQQCCCCCCCCCCCCCCZZZZZZZZZZZZZZZZZZZZUUUUUUUUUUUUIIIIIIII
+DDDDDDDDDDDDDDDHDDHHDDDDDDDBBBBBBBBBBBBBBBBBBBBBBBBAAXAAQARRRRRRGGGGGGKKAQQQQQQQQQQQQQQQCCCCYCCCYCCCZZZZZZZZZZZVVZZZZZZZVUUUUUUUUUUUIIIIIIII
+DDDDDDDDDDDDDDDHHHHDDDDDDDDDDDBBBBBBBBBBBBBBBBBBAAAAAAAAAARRRRRRRGGKGGKKQQQQQQQQQQQQQCQQCCCCYYCCYYYCZZZZZZZZZZZVVVZZVZVVVUUUUUUUUUUUUIIIIIII
+DDDDDDDDDDDDDDJDDDDDDDDDDDDDDDBBBBBBBBBBBBBBBBBBAAAAAAAAAAAORRRRGGGKKGKKQQQQQQQQQQQQQCCCCCCCYYCYYYYYYZZZZZZZVVVVVUVVVVVVUUUUUUUUUUUUIIIIIIII
+DDBBDDDDDDDDDDJJDDDDDDDDDDDDDDBBBBBHBBBBBBBBBBBBBAAAAAAAAAARRRRRRGGKKKKKKQQQQQQQQQQRRRRCCCCCCYCYYYYYYZZZZZZZVVVVVVVVVVVVUUWUUUUUUUUUIIIIIIII
+DDDBBDDDBDDDDDJDDDDDDDDDDDDDPBBBBBBBRRBBBBBBBBBBAAAAAAAAAAARRRRRRGEEKKKKKQPQQQQQQQQFRRRRRCCCCYYYYYYYYZZZZZZZZVVVVVVVVVVVVUUVVVUUUUUUIIIIJIII
+DDDBBBBBBBDDDJJDDDDDDDDDDDDDPPPBBBBBBBBBGGGBBBBBBBAAAAAAAAAARRXXKKKKKKKKKQPPQPPQQQQQRRRRRRCCCYYYYYYYYZVYYZHZPPVVVVVVVVVVVVVVVVVVLUUUIIJJJJJI
+DDBBBBBBBIDDDDDDDDDDDDDDDDDPPPPBBBBBDDLLGLLBBBBBBBBBAAAAAAAAARKKKKKKKKKKKQPPPPPQRRRRRRRRRRRCCCYYYYYYYYYYYZHZYVVVVVVVVVFVVVVVVLLVLQQQQIQQQJII
+DDBBBBBBIIDCDHDDDDDDDDDDDDDPPPPPPBBBDLSLLLLLBBBBBBBBBLAALLBBBBBBKBKKKKKKKQPPPPPPPRRRRRRRRRRRCCCEYYYYYYYYYYYYYVVVVVVFFFFFVVVVVVLLLQQQQQQQQJII
+MDBBBBBBBBCCDCDPPDDDDDDDDDPPPPPPUBBBDLLLLLLLLLBBBBBBBLALLLBBBBBBBBKKKKKKKKKKKPPPRRRRRRRRRRRREEEEEYYYYYYYYYYYYYYVVVVFFFFFVVVLVVLLLQLQQQQQIIIQ
+MMBMMBBBCBCCCCCPPPDDDDDDDDPPPPPPUBBBBLLLLLLLLLBBBBBBVVVVVVBBBBSSBBKKKKKKKKKPZZZZZRRRRRRRRRRRDEEEEYYYYYYYYYYYYYYYVFFFFFFFVLLLLLLLLLLQQQQQQQQQ
+MMMMMBBBCCCCCCCPPPDDDDDDNDPPPPPUUUUULLLLLLLLLLBBSBBBVVVVVVVBSSSSSKKKKKKPPPPPZZZZZRRRRRRRRRRDDDEEEYYYYYYYYYYYYYYYFFFFFFFFFWLLLLLLLLLJJJJQQQQQ
+MMMMCCCCCCCCCCCCCCWDDDDDDUUPPPPUUUUUULLLLFFLLBBBSSSSVVVVVVVVVVVVVVVOOKKPPPPPZZZZZZRRRRRRRRRDDDEEYYEYYYYYAFYYYYYFFFFFFFFWWWWLLLLLLLLJJJJJQQQQ
+MMMMMCCCCCCCCCCCCCCHHHHDDUUUUUUUUUUUUUFLFFFSLSSSSSSSVVVVVVVVVVVVVVVOOEEPPMPPZZZZZZRRRRRRRDDDDDDEEEEEYYYYAAAYYFFFFFFFFFWWWWLLLLLLLLLMJQQQQQQQ
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+MMMMCCCCCCCCCCCCUUUHHHHUUUUUUUUUUUQQFFFQFFFSSSSSSSSSVVVVVVVVVVVVVVVOEEEPMMMMZZZZZZRRRRKKKMMDDGGGEEEEQAAAAAAFFFFFFFFFFFFWLLLLLLLLLLLLQQQQQQQQ
+MMMMMCCCCCCCCCCCUUUUHHHHHHHHHHHHUUQQQQQQFFSSSSSSSSSSVVVVVVVVVVVVVVVEEEEEDDDMZZZZZZRRRRKKKMMMMGGGGGGEAAAAAJJJJJJJJJJFFFFLLLLLLLLLLLLQQQQQQQNN
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+MMTTTTTTCZZZUUUUUUUUUZZHHHHHHHHHUUUQQQQQFFFSSSSSSSSSVVVVVVVVVVVVVVVSSDDDDDDDZZZDDBBBBBBMMKKMMMMMMMGMAAAAAJJJJJJJJJJFFAAAALLLLLLLLLLQQNNNQNNN
+TTTTTTTTZZZUUUUUUUUUEEZHHHHHHHHHHFUQQQFFFFFFSFSSSSSSVVVVNNNNNNNNNNNNNADDDDDDZZZDDBBBBBBMMMKMMMMMMMMMAAAAAJJJJJJJJJJAAAAAALLWWJLWLLLLQNNNNNNN
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+TTTTTTTZZZZZZZUUUUUUUUUHHHHHHHHHHHHHHHHFFFFFSSSSSSSSVVVVNNNNNNNNNNNNNAAADDDDZZZIIDBBBBMHMMMMMMMMMMMMFFFFFJJJJJJJJJJAAAAAAACCCCCCLLLWWNNNNNNN
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+RRRRRRRLLLLLTTTTWWWWWWWWWVVVVVSSSSSSSSSSSWWWWWWWWWYINNNNNRRRYRRRRRRLLJJEEJJJJZZZAAAAAAAAAAAAABBMLLYLLYYKKKKKTKKTTTTTTTCGCCCCCCCCCWWWSSSSSSNN
+RRRRRRLLLLTTTTTTWWWWWWXWWVVVVSSSSSSSSSSSSWWWWWWWWYYYYNNNNNRNSSURRRLLLLJEEGJJJZZZZZZAAAAAAAAAABBMLLLLYYYYKKZKTTKTTTTGGGGGGCCCCCCCCWTTSSSSNNNN
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+RRRRRRRLLLLTTTTTTTTTWTTTTTVVVSJSSSSDSSSSSSSWWWWWWYYYYNNSSSSSSSYYYGGGGGGGGGMJZZZZZZVVAAAAAAAVVVVLLLLLTTTKKKKKTTTTTGGGGGGGGGGGGGGTGGTSSSSSSSNN
+RRRRRLRLLLLLLLTTTTTTTTTTTTVVVSJSSDDDSSSSSSSSTYYYYYYYYNNSSSSSSSGYGGGGGGGGGGGJJJJZZVVVAAAAAAAAAAVLLLLSSTTTTTKTTTTTTTGGGGGGGGGGGGGGGGSSSSSSNNNN
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+RRRRRLLLLLLLTTYTTTTTTTTTTTTTVJJJJJDDSSSSSSTTTTYYYYYYYPPSSSSSSSGGGGGGGGGGGGGJJJJJJVVAAAVAAAAAAALLNLLNNNNTTTTTTTTTTATAGGGGGGGGGGGGGGLSSSSSSSNN
+RRRRLLLLLLLLLTTTTTTTTTTTTKTTVJJJJJDDEEESSETTTTYYYYYKYPKSSSSSSSSGGSSSGGGGGGGGJJJJJVVVVVVVAAAAXXXLNNNNNKNNNNNTTTTTTAAAGGGGGGGGGGGGGLLSLLSSSSNN
+RRRRLLLLLLLLLLWTTTTHTTTKKKTKKJJJJJJJHEESEEEYTKYGGGGKKKKSSSSSSSSGSSSSGGGGGGYGJJJJVVVVVVVVVAAXXXXLNNNNNKNNNNNNTTTAAAAAGGGGGGGGCGGGQCLLLLSSSSSS
+RRRRLLLLLLLLLLLNRTTTTTTKKKKKKJJJJJJJJEEEEEYYTTAAAAAAAAAKSMSSSSSSSSSGGGGGGGGGGGGJVVVVVVVVKKXXXXXXNNNNNNNNNNNTTAAAAAAAGAGGGGGCCJGGQCLLLLSSSSSS
+RRRRRLLLLLLNNXNNNMMMTTTKKKKKKJJJJJJJEEEEEEGGGGAAAAAAAAAKMMSSSSSSSSSGGGGGGGGGWWGVVVVVVVVVKKXGXXXNNNNNNNNNNNNAAAAAAAAAAAEGGCCCCCCCCCLLLLLSSSSS
+RRRRRRLLLLLNNNNNNNMMMMMKKKKKKKJJJJJJJJEEEEENGGAAAAAAAAAKSSSSFFFFFFFSSZGGGGWWWWWVVVVVVVVVVKKXXXXNNNNNNNNNNNNAAAAAAAAAAAEAQCCCCCCCCCLLLLLSLSSS
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+JJJJJAALANNNNNNNNNNNKKKKKVVKKKKEEEEEEEEEEEEEEGAAAAAAAAAUSSSFFFFFFFFFFFWWWWWWWWWWVVVVVVZVVVXXXXXXNNNJNNNNNNNNQQAAQQQAAAAAACCCCCCCCCLLLTLTTTTT
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+AAAAAAAOOOOOOOOOOOQFQQQZZZZZZZZZFFFFFFFFFVVVJJJJJTTTTTTTTCCNNNGGGGGGGFFFFFFLLLLLVVXOVVKKKKKKKKKKKKKKKKOOOOOOOOOOOOOQQQQQQQQQQQQFIIIIIIIIITTT
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+AAAAAAAOOOUOOUOQQQQQQQQQQQQQQQQQFFFFJJFJJJVVVJJJTTTTTTTTTTCCGGGGGGGGFFFFFFLLLLLLOOOOOVVVVKOKKKKJKKKKKKOOOOOOOOOOOJJJJJJJQQQQQQFFFFIIIIIITTTT
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+CCCCCCQQQQQQQQMMKKKGKKKKYYYYYYQQQCJJJXXXXXXDDDDDDDDDDDDDDDDDDDDDYBPPKKKKKKKKKKKKKKNNTNPPPSPSPUUUUUUUUUUUUSSSXXXSFXGGGGGGGGGGGGGGUUUUUUAAAALL
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2024/day12/main.py

@@ -0,0 +1,128 @@
+with open('test.text', 'r') as file:
+    data: str = file.read()
+
+gardens: list[list[str]] = [[c for c in line.strip()] for line in data.split('\n')]
+
+x_bound: int = len(gardens[0]) - 1
+y_bound: int = len(gardens) - 1
+
+class Coord:
+    x: int
+    y: int
+
+    def __init__(self, x: int, y: int):
+        self.x = x
+        self.y = y
+
+    def __str__(self) -> str:
+        return f'({self.x}, {self.y})'
+
+    def __eq__(self, other) -> bool:
+        return other.x == self.x and other.y == self.y
+
+    def __add__(self, other):
+        return Coord(self.x + other.x, self.y + other.y)
+
+    def __sub__(self, other):
+        return Coord(self.x - other.x, self.y - other.y)
+
+def in_bounds(c: Coord) -> bool:
+    if c.y > y_bound or c.y < 0:
+        return False
+
+    if c.x > x_bound or c.x < 0:
+        return False
+
+    return True
+
+def neighbor_count(c: Coord) -> int:
+    neighbors = 0
+
+    up, down, left, right = Coord(c.x, c.y - 1), Coord(c.x, c.y + 1), Coord(c.x - 1, c.y), Coord(c.x + 1, c.y)
+
+    v: str = gardens[c.y][c.x]
+    for direction in [up, down, left, right]:
+        if in_bounds(direction):
+            if gardens[direction.y][direction.x] == v:
+                neighbors += 1
+
+    return neighbors
+
+# Uses a flood fill to find each region, and returns a region as a list of coordinates
+def flood_fill(start: Coord) -> list[Coord]:
+    filled: list[Coord] = []
+    to_fill: list[Coord] = [start]
+    edges: list[tuple[int, Coord]] = [] # Each edge is a tuple of (direction unit vector, x or y depending on if left, right or up, down)
+
+    v: str = gardens[start.y][start.x]
+    while to_fill:
+        c = to_fill.pop()
+        filled.append(c)
+
+        up, down, left, right = Coord(c.x, c.y - 1), Coord(c.x, c.y + 1), Coord(c.x - 1, c.y), Coord(c.x + 1, c.y)
+
+        for direction in [up, down, left, right]:
+            if in_bounds(direction):
+                if gardens[direction.y][direction.x] == v:
+                    if direction not in filled and direction not in to_fill:
+                        to_fill.append(direction)
+                    continue
+
+            unit_direction = c - direction
+
+            # Means it's up/down
+            if unit_direction.x == 0:
+                if (c.y, unit_direction) not in edges:
+                    edges.append((c.y, unit_direction))
+            # Left / Right
+            else:
+                if (c.x, unit_direction) not in edges:
+                    edges.append((c.x, unit_direction))
+
+    print(v, len(edges))
+    for edge in edges:
+        print(edge[0], edge[1])
+
+    return filled
+
+def print_region(region: list[Coord]) -> None:
+    for member in region:
+        print(member, end=' ')
+    print()
+
+    for y, line in enumerate(gardens):
+        for x, char in enumerate(line):
+            print(char if Coord(x, y) in region else ' ', end='')
+        print()
+
+
+# Part 1
+
+total_cost = 0
+checked = gardens.copy()
+for y, line in enumerate(gardens):
+    for x, char in enumerate(line):
+        if checked[y][x] == "-1":
+            continue
+
+        region = flood_fill(Coord(x, y))
+        area = len(region)
+
+        perimeter = 0
+        for member in region:
+            perimeter += 4 - neighbor_count(member)
+
+
+        for member in region:
+            checked[member.y][member.x] = '-1'
+
+        total_cost += area * perimeter
+        # print(f'A region of {char} plants with price {area} * {perimeter} = {area * perimeter}')
+
+print(f'Total Cost: {total_cost}')
+
+
+
+
+
+

2024/day12/test.text

@@ -0,0 +1,5 @@
+EEEEE
+EXXXX
+EEEEE
+EXXXX
+EEEEE