day 24 and day 25

day24_arithmetic_logic_unit/README.md

@@ -0,0 +1,100 @@
+--- Day 24: Arithmetic Logic Unit ---
+-------------------------------------
+
+[Magic smoke](https://en.wikipedia.org/wiki/Magic_smoke) starts leaking from the submarine's [arithmetic logic unit](https://en.wikipedia.org/wiki/Arithmetic_logic_unit) (ALU). Without the ability to perform basic arithmetic and logic functions, the submarine can't produce cool patterns with its Christmas lights!
+
+
+It also can't navigate. Or run the oxygen system.
+
+
+Don't worry, though - you *probably* have enough oxygen left to give you enough time to build a new ALU.
+
+
+The ALU is a four-dimensional processing unit: it has integer variables `w`, `x`, `y`, and `z`. These variables all start with the value `0`. The ALU also supports *six instructions*:
+
+
+* `inp a` - Read an input value and write it to variable `a`.
+* `add a b` - Add the value of `a` to the value of `b`, then store the result in variable `a`.
+* `mul a b` - Multiply the value of `a` by the value of `b`, then store the result in variable `a`.
+* `div a b` - Divide the value of `a` by the value of `b`, truncate the result to an integer, then store the result in variable `a`. (Here, "truncate" means to round the value toward zero.)
+* `mod a b` - Divide the value of `a` by the value of `b`, then store the *remainder* in variable `a`. (This is also called the [modulo](https://en.wikipedia.org/wiki/Modulo_operation) operation.)
+* `eql a b` - If the value of `a` and `b` are equal, then store the value `1` in variable `a`. Otherwise, store the value `0` in variable `a`.
+
+
+In all of these instructions, `a` and `b` are placeholders; `a` will always be the variable where the result of the operation is stored (one of `w`, `x`, `y`, or `z`), while `b` can be either a variable or a number. Numbers can be positive or negative, but will always be integers.
+
+
+The ALU has no *jump* instructions; in an ALU program, every instruction is run exactly once in order from top to bottom. The program halts after the last instruction has finished executing.
+
+
+(Program authors should be especially cautious; attempting to execute `div` with `b=0` or attempting to execute `mod` with `a<0` or `b<=0` will cause the program to crash and might even damage the ALU. These operations are never intended in any serious ALU program.)
+
+
+For example, here is an ALU program which takes an input number, negates it, and stores it in `x`:
+
+
+
+```
+inp x
+mul x -1
+
+```
+
+Here is an ALU program which takes two input numbers, then sets `z` to `1` if the second input number is three times larger than the first input number, or sets `z` to `0` otherwise:
+
+
+
+```
+inp z
+inp x
+mul z 3
+eql z x
+
+```
+
+Here is an ALU program which takes a non-negative integer as input, converts it into binary, and stores the lowest (1's) bit in `z`, the second-lowest (2's) bit in `y`, the third-lowest (4's) bit in `x`, and the fourth-lowest (8's) bit in `w`:
+
+
+
+```
+inp w
+add z w
+mod z 2
+div w 2
+add y w
+mod y 2
+div w 2
+add x w
+mod x 2
+div w 2
+mod w 2
+
+```
+
+Once you have built a replacement ALU, you can install it in the submarine, which will immediately resume what it was doing when the ALU failed: validating the submarine's *model number*. To do this, the ALU will run the MOdel Number Automatic Detector program (MONAD, your puzzle input).
+
+
+Submarine model numbers are always *fourteen-digit numbers* consisting only of digits `1` through `9`. The digit `0` *cannot* appear in a model number.
+
+
+When MONAD checks a hypothetical fourteen-digit model number, it uses fourteen separate `inp` instructions, each expecting a *single digit* of the model number in order of most to least significant. (So, to check the model number `13579246899999`, you would give `1` to the first `inp` instruction, `3` to the second `inp` instruction, `5` to the third `inp` instruction, and so on.) This means that when operating MONAD, each input instruction should only ever be given an integer value of at least `1` and at most `9`.
+
+
+Then, after MONAD has finished running all of its instructions, it will indicate that the model number was *valid* by leaving a `0` in variable `z`. However, if the model number was *invalid*, it will leave some other non-zero value in `z`.
+
+
+MONAD imposes additional, mysterious restrictions on model numbers, and legend says the last copy of the MONAD documentation was eaten by a [tanuki](https://en.wikipedia.org/wiki/Japanese_raccoon_dog). You'll need to *figure out what MONAD does* some other way.
+
+
+To enable as many submarine features as possible, find the largest valid fourteen-digit model number that contains no `0` digits. *What is the largest model number accepted by MONAD?*
+
+
+--- Part Two ---
+----------------
+
+As the submarine starts booting up things like the [Retro Encabulator](https://www.youtube.com/watch?v=RXJKdh1KZ0w), you realize that maybe you don't need all these submarine features after all.
+
+
+*What is the smallest model number accepted by MONAD?*
+
+

day24_arithmetic_logic_unit/example.txt

@@ -0,0 +1,11 @@
+inp w
+add z w
+mod z 2
+div w 2
+add y w
+mod y 2
+div w 2
+add x w
+mod x 2
+div w 2
+mod w 2

day24_arithmetic_logic_unit/input.txt

@@ -0,0 +1,252 @@
+inp w
+mul x 0
+add x z
+mod x 26
+div z 1
+add x 12
+eql x w
+eql x 0
+mul y 0
+add y 25
+mul y x
+add y 1
+mul z y
+mul y 0
+add y w
+add y 4
+mul y x
+add z y
+inp w
+mul x 0
+add x z
+mod x 26
+div z 1
+add x 11
+eql x w
+eql x 0
+mul y 0
+add y 25
+mul y x
+add y 1
+mul z y
+mul y 0
+add y w
+add y 10
+mul y x
+add z y
+inp w
+mul x 0
+add x z
+mod x 26
+div z 1
+add x 14
+eql x w
+eql x 0
+mul y 0
+add y 25
+mul y x
+add y 1
+mul z y
+mul y 0
+add y w
+add y 12
+mul y x
+add z y
+inp w
+mul x 0
+add x z
+mod x 26
+div z 26
+add x -6
+eql x w
+eql x 0
+mul y 0
+add y 25
+mul y x
+add y 1
+mul z y
+mul y 0
+add y w
+add y 14
+mul y x
+add z y
+inp w
+mul x 0
+add x z
+mod x 26
+div z 1
+add x 15
+eql x w
+eql x 0
+mul y 0
+add y 25
+mul y x
+add y 1
+mul z y
+mul y 0
+add y w
+add y 6
+mul y x
+add z y
+inp w
+mul x 0
+add x z
+mod x 26
+div z 1
+add x 12
+eql x w
+eql x 0
+mul y 0
+add y 25
+mul y x
+add y 1
+mul z y
+mul y 0
+add y w
+add y 16
+mul y x
+add z y
+inp w
+mul x 0
+add x z
+mod x 26
+div z 26
+add x -9
+eql x w
+eql x 0
+mul y 0
+add y 25
+mul y x
+add y 1
+mul z y
+mul y 0
+add y w
+add y 1
+mul y x
+add z y
+inp w
+mul x 0
+add x z
+mod x 26
+div z 1
+add x 14
+eql x w
+eql x 0
+mul y 0
+add y 25
+mul y x
+add y 1
+mul z y
+mul y 0
+add y w
+add y 7
+mul y x
+add z y
+inp w
+mul x 0
+add x z
+mod x 26
+div z 1
+add x 14
+eql x w
+eql x 0
+mul y 0
+add y 25
+mul y x
+add y 1
+mul z y
+mul y 0
+add y w
+add y 8
+mul y x
+add z y
+inp w
+mul x 0
+add x z
+mod x 26
+div z 26
+add x -5
+eql x w
+eql x 0
+mul y 0
+add y 25
+mul y x
+add y 1
+mul z y
+mul y 0
+add y w
+add y 11
+mul y x
+add z y
+inp w
+mul x 0
+add x z
+mod x 26
+div z 26
+add x -9
+eql x w
+eql x 0
+mul y 0
+add y 25
+mul y x
+add y 1
+mul z y
+mul y 0
+add y w
+add y 8
+mul y x
+add z y
+inp w
+mul x 0
+add x z
+mod x 26
+div z 26
+add x -5
+eql x w
+eql x 0
+mul y 0
+add y 25
+mul y x
+add y 1
+mul z y
+mul y 0
+add y w
+add y 3
+mul y x
+add z y
+inp w
+mul x 0
+add x z
+mod x 26
+div z 26
+add x -2
+eql x w
+eql x 0
+mul y 0
+add y 25
+mul y x
+add y 1
+mul z y
+mul y 0
+add y w
+add y 1
+mul y x
+add z y
+inp w
+mul x 0
+add x z
+mod x 26
+div z 26
+add x -7
+eql x w
+eql x 0
+mul y 0
+add y 25
+mul y x
+add y 1
+mul z y
+mul y 0
+add y w
+add y 8
+mul y x
+add z y

day24_arithmetic_logic_unit/main.py

@@ -0,0 +1,109 @@
+import os, sys, re
+task_dir = os.path.dirname(__file__)
+sys.path.append(f'{task_dir}/..')
+from get_tasks import get_input, generate_readme, check_example
+
+
+def ALU(program, number):
+    number = iter(map(int, str(number)))
+    ma = {'w':0, 'z':0, 'x':0, 'y':0}
+    for idx, line in enumerate(program):
+        if len(inp := line.split()) == 2: ma[inp[1]] = next(number)
+        else:
+            ins, a, b = line.split()
+            if ins == 'add': ma[a] = ma[a] + int(b) if b.isdigit() or b.startswith('-') else ma[a] + ma[b]
+            if ins == 'mul': ma[a] = ma[a] * int(b) if b.isdigit() or b.startswith('-') else ma[a] * ma[b]
+            if ins == 'mod': 
+                if ma[a] < 0 : raise ValueError(f'{a} < 0! or {b} <= 0: {ma[a]}. istruction number {idx}: {line}')
+                else: ma[a] = ma[a] % int(b) if b.isdigit() else ma[a] % ma[b]
+            if ins == 'div': 
+                if (b.isdigit() and int(b) < 0) or (not b.isdigit() and ma[b] < 0): 
+                    raise ValueError(f'{b} <= 0: {b if b.isdigit() else ma[b]}. istruction number {idx}: {line}')
+                else: ma[a] = int(ma[a] / int(b)) if b.isdigit() or b.startswith('-') else int((ma[a] / ma[b]))
+            if ins == 'eql': 
+                if b.isdigit() and ma[a] == int(b):
+                    ma[a] = 1 
+                elif not b.isdigit() and ma[b] == ma[a]:
+                    ma[a] = 1
+                else:
+                    ma[a] = 0
+    return ma['w'], ma['x'], ma['y'], ma['z']
+
+def get_equations_from_input(input):
+    placeholder = 'abcdefghijklmn'
+    number = iter(placeholder)
+    pstack = []
+    diffs = []
+    stack = []
+    equations = []
+    for idx, line in enumerate(input):
+        match idx % 18:
+            case 5 | 15: diffs.append(line)
+    for idx, line in enumerate(diffs):
+        _, a, b = line.split()
+        if a == 'x' and b.startswith("-"):
+            pstack.append(['pop', f'{b} = {next(number)}'])
+        elif a == 'x':
+            pstack.append(['push', f'{next(number)} + {diffs[idx+1].split()[2]}'])
+    for line in pstack:
+        if line[0] == 'push':
+            stack.append(line[1])
+        elif line[0] == 'pop':
+            pop = stack.pop().split('+')
+            val = line[1].split('=')
+            equations.append([f"{pop[0]} + {eval(pop[-1]+val[0])} = {val[-1]}"])
+    return equations
+
+def part1(equations):
+    placeholder = 'abcdefghijklmn'
+    for equation in equations:
+        if re.findall(r"\-", equation[0]):
+            equation = equation[0]
+            letter1 = equation[0]
+            letter2 = equation[-1]
+            placeholder = placeholder.replace(letter1, '9')
+            equation = equation.replace(letter1, '9')
+            placeholder = placeholder.replace(letter2, str(eval(equation.split('=')[0])))
+        else:
+            equation = equation[0][::-1]
+            letter1 = equation[0]
+            letter2 = equation[-1]
+            placeholder = placeholder.replace(letter1, '9')
+            equation = equation.replace(letter1, '9')
+            placeholder = placeholder.replace(letter2, str(9 - int(equation.split('=')[1].split('+')[0]))) 
+    print("The answer of part1 is:", placeholder)
+    return placeholder
+
+def part2(equations):
+    placeholder = 'abcdefghijklmn'
+    for equation in equations:
+        if re.findall(r"\-", equation[0]):
+           equation = equation[0][::-1]
+           letter1 = equation[0]
+           letter2 = equation[-1]
+           placeholder = placeholder.replace(letter1, '1')
+           equation = equation.replace(letter1, '1')
+           placeholder = placeholder.replace(letter2, str(1 + int(equation.split('=')[1].split('+')[0][1]))) 
+        else:
+            equation = equation[0]
+            letter1 = equation[0]
+            letter2 = equation[-1]
+            placeholder = placeholder.replace(letter1, '1')
+            equation = equation.replace(letter1, '1')
+            placeholder = placeholder.replace(letter2, str(eval(equation.split('=')[0])))
+    print("The answer of part2 is:", placeholder)
+    return placeholder
+            
+            
+if __name__ == '__main__':
+
+    input, example = get_input(task_dir, 24)
+    
+    equations = get_equations_from_input(input)
+    
+    part1(equations)
+    part2(equations)
+
+    generate_readme(task_dir, 24)
+
+    

day25_sea_cucumber/README.md

@@ -0,0 +1,366 @@
+--- Day 25: Sea Cucumber ---
+----------------------------
+
+This is it: the bottom of the ocean trench, the last place the sleigh keys could be. Your submarine's experimental antenna *still isn't boosted enough* to detect the keys, but they *must* be here. All you need to do is *reach the seafloor* and find them.
+
+
+At least, you'd touch down on the seafloor if you could; unfortunately, it's completely covered by two large herds of [sea cucumbers](https://en.wikipedia.org/wiki/Sea_cucumber), and there isn't an open space large enough for your submarine.
+
+
+You suspect that the Elves must have done this before, because just then you discover the phone number of a deep-sea marine biologist on a handwritten note taped to the wall of the submarine's cockpit.
+
+
+"Sea cucumbers? Yeah, they're probably hunting for food. But don't worry, they're predictable critters: they move in perfectly straight lines, only moving forward when there's space to do so. They're actually quite polite!"
+
+
+You explain that you'd like to predict when you could land your submarine.
+
+
+"Oh that's easy, they'll eventually pile up and leave enough space for-- wait, did you say submarine? And the only place with that many sea cucumbers would be at the very bottom of the Mariana--" You hang up the phone.
+
+
+There are two herds of sea cucumbers sharing the same region; one always moves *east* (`>`), while the other always moves *south* (`v`). Each location can contain at most one sea cucumber; the remaining locations are *empty* (`.`). The submarine helpfully generates a map of the situation (your puzzle input). For example:
+
+
+
+```
+v...>>.vv>
+.vv>>.vv..
+>>.>v>...v
+>>v>>.>.v.
+v>v.vv.v..
+>.>>..v...
+.vv..>.>v.
+v.v..>>v.v
+....v..v.>
+
+```
+
+Every *step*, the sea cucumbers in the east-facing herd attempt to move forward one location, then the sea cucumbers in the south-facing herd attempt to move forward one location. When a herd moves forward, every sea cucumber in the herd first simultaneously considers whether there is a sea cucumber in the adjacent location it's facing (even another sea cucumber facing the same direction), and then every sea cucumber facing an empty location simultaneously moves into that location.
+
+
+So, in a situation like this:
+
+
+
+```
+...>>>>>...
+```
+
+After one step, only the rightmost sea cucumber would have moved:
+
+
+
+```
+...>>>>.>..
+```
+
+After the next step, two sea cucumbers move:
+
+
+
+```
+...>>>.>.>.
+```
+
+During a single step, the east-facing herd moves first, then the south-facing herd moves. So, given this situation:
+
+
+
+```
+..........
+.>v....v..
+.......>..
+..........
+
+```
+
+After a single step, of the sea cucumbers on the left, only the south-facing sea cucumber has moved (as it wasn't out of the way in time for the east-facing cucumber on the left to move), but both sea cucumbers on the right have moved (as the east-facing sea cucumber moved out of the way of the south-facing sea cucumber):
+
+
+
+```
+..........
+.>........
+..v....v>.
+..........
+
+```
+
+Due to *strong water currents* in the area, sea cucumbers that move off the right edge of the map appear on the left edge, and sea cucumbers that move off the bottom edge of the map appear on the top edge. Sea cucumbers always check whether their destination location is empty before moving, even if that destination is on the opposite side of the map:
+
+
+
+```
+Initial state:
+...>...
+.......
+......>
+v.....>
+......>
+.......
+..vvv..
+
+After 1 step:
+..vv>..
+.......
+>......
+v.....>
+>......
+.......
+....v..
+
+After 2 steps:
+....v>.
+..vv...
+.>.....
+......>
+v>.....
+.......
+.......
+
+After 3 steps:
+......>
+..v.v..
+..>v...
+>......
+..>....
+v......
+.......
+
+After 4 steps:
+>......
+..v....
+..>.v..
+.>.v...
+...>...
+.......
+v......
+
+```
+
+To find a safe place to land your submarine, the sea cucumbers need to stop moving. Again consider the first example:
+
+
+
+```
+Initial state:
+v...>>.vv>
+.vv>>.vv..
+>>.>v>...v
+>>v>>.>.v.
+v>v.vv.v..
+>.>>..v...
+.vv..>.>v.
+v.v..>>v.v
+....v..v.>
+
+After 1 step:
+....>.>v.>
+v.v>.>v.v.
+>v>>..>v..
+>>v>v>.>.v
+.>v.v...v.
+v>>.>vvv..
+..v...>>..
+vv...>>vv.
+>.v.v..v.v
+
+After 2 steps:
+>.v.v>>..v
+v.v.>>vv..
+>v>.>.>.v.
+>>v>v.>v>.
+.>..v....v
+.>v>>.v.v.
+v....v>v>.
+.vv..>>v..
+v>.....vv.
+
+After 3 steps:
+v>v.v>.>v.
+v...>>.v.v
+>vv>.>v>..
+>>v>v.>.v>
+..>....v..
+.>.>v>v..v
+..v..v>vv>
+v.v..>>v..
+.v>....v..
+
+After 4 steps:
+v>..v.>>..
+v.v.>.>.v.
+>vv.>>.v>v
+>>.>..v>.>
+..v>v...v.
+..>>.>vv..
+>.v.vv>v.v
+.....>>vv.
+vvv>...v..
+
+After 5 steps:
+vv>...>v>.
+v.v.v>.>v.
+>.v.>.>.>v
+>v>.>..v>>
+..v>v.v...
+..>.>>vvv.
+.>...v>v..
+..v.v>>v.v
+v.v.>...v.
+
+...
+
+After 10 steps:
+..>..>>vv.
+v.....>>.v
+..v.v>>>v>
+v>.>v.>>>.
+..v>v.vv.v
+.v.>>>.v..
+v.v..>v>..
+..v...>v.>
+.vv..v>vv.
+
+...
+
+After 20 steps:
+v>.....>>.
+>vv>.....v
+.>v>v.vv>>
+v>>>v.>v.>
+....vv>v..
+.v.>>>vvv.
+..v..>>vv.
+v.v...>>.v
+..v.....v>
+
+...
+
+After 30 steps:
+.vv.v..>>>
+v>...v...>
+>.v>.>vv.>
+>v>.>.>v.>
+.>..v.vv..
+..v>..>>v.
+....v>..>v
+v.v...>vv>
+v.v...>vvv
+
+...
+
+After 40 steps:
+>>v>v..v..
+..>>v..vv.
+..>>>v.>.v
+..>>>>vvv>
+v.....>...
+v.v...>v>>
+>vv.....v>
+.>v...v.>v
+vvv.v..v.>
+
+...
+
+After 50 steps:
+..>>v>vv.v
+..v.>>vv..
+v.>>v>>v..
+..>>>>>vv.
+vvv....>vv
+..v....>>>
+v>.......>
+.vv>....v>
+.>v.vv.v..
+
+...
+
+After 55 steps:
+..>>v>vv..
+..v.>>vv..
+..>>v>>vv.
+..>>>>>vv.
+v......>vv
+v>v....>>v
+vvv...>..>
+>vv.....>.
+.>v.vv.v..
+
+After 56 steps:
+..>>v>vv..
+..v.>>vv..
+..>>v>>vv.
+..>>>>>vv.
+v......>vv
+v>v....>>v
+vvv....>.>
+>vv......>
+.>v.vv.v..
+
+After 57 steps:
+..>>v>vv..
+..v.>>vv..
+..>>v>>vv.
+..>>>>>vv.
+v......>vv
+v>v....>>v
+vvv.....>>
+>vv......>
+.>v.vv.v..
+
+After 58 steps:
+..>>v>vv..
+..v.>>vv..
+..>>v>>vv.
+..>>>>>vv.
+v......>vv
+v>v....>>v
+vvv.....>>
+>vv......>
+.>v.vv.v..
+
+```
+
+In this example, the sea cucumbers stop moving after `*58*` steps.
+
+
+Find somewhere safe to land your submarine. *What is the first step on which no sea cucumbers move?*
+
+
+--- Part Two ---
+----------------
+
+Suddenly, the experimental antenna control console lights up:
+
+
+
+```
+*Sleigh keys detected!*
+```
+
+According to the console, the keys are *directly under the submarine*. You landed right on them! Using a robotic arm on the submarine, you move the sleigh keys into the airlock.
+
+
+Now, you just need to get them to Santa in time to save Christmas! You check your clock - it *is* Christmas. There's no way you can get them back to the surface in time.
+
+
+Just as you start to lose hope, you notice a button on the sleigh keys: *remote start*. You can start the sleigh from the bottom of the ocean! You just need some way to *boost the signal* from the keys so it actually reaches the sleigh. Good thing the submarine has that experimental antenna! You'll definitely need *50 stars* to boost it that far, though.
+
+
+The experimental antenna control console lights up again:
+
+
+
+```
+*Energy source detected.
+Integrating energy source from device "sleigh keys"...done.
+Installing device drivers...done.
+Recalibrating experimental antenna...done.
+Boost strength due to matching signal phase: *1 star**
+```
+
+Only *49 stars* to go.
+
+

day25_sea_cucumber/example.txt

@@ -0,0 +1,9 @@
+v...>>.vv>
+.vv>>.vv..
+>>.>v>...v
+>>v>>.>.v.
+v>v.vv.v..
+>.>>..v...
+.vv..>.>v.
+v.v..>>v.v
+....v..v.>

day25_sea_cucumber/input.txt

@@ -0,0 +1,137 @@
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day25_sea_cucumber/main.py

@@ -0,0 +1,141 @@
+import os, sys, copy
+from attr import field
+task_dir = os.path.dirname(__file__)
+sys.path.append(f'{task_dir}/..')
+import numpy as np
+from get_tasks import get_input, generate_readme, check_example, bench
+
+def can_move_any(field, hight, width, count):
+    bools = []
+    cucumbers = []
+    for x in range(hight-1):
+        for y in range(width-1):
+            if field[x][y]=='>' and field[x][y+1] == '.':
+                bools.append(True)
+                cucumbers.append([1, x, y])
+            if field[x][y]=='>' and field[x][y+1] != '.':
+                bools.append(False)
+            if field[x][y]=='v' and field[x+1][y] == '.':
+                bools.append(True)
+                cucumbers.append([2, x, y])
+            if field[x][y]=='v' and field[x+1][y] != '.':
+                bools.append(False)
+            if (y == width-2) and (field[x][y+1] == '>') and (field[x][0] == '.'):
+                bools.append(True)
+                cucumbers.append([3, x, y+1])
+            if (y == width-2) and (field[x][y+1] == '>') and (field[x][0] != '.'):
+                bools.append(False)
+            if (y == width-2) and (field[x][y+1] == 'v') and (field[x+1][y+1] == '.'):
+                bools.append(True)
+                cucumbers.append([2, x, y+1])
+            if (y == width-2) and (field[x][y+1] == 'v') and (field[x+1][y+1] != '.'):
+                bools.append(False)
+                
+            if (x == hight-2) and (field[x+1][y] == 'v') and (field[0][y] == '.'):
+                bools.append(True)
+                cucumbers.append([4, x+1, y])
+            if (x == hight-2) and (field[x+1][y] == 'v') and (field[0][y] != '.'):
+                bools.append(False)
+            if (x == hight-2) and (field[x+1][y] == '>') and (field[x+1][y+1] == '.'):
+                bools.append(True)
+                cucumbers.append([1, x+1, y])
+            if (x == hight-2) and (field[x+1][y] == '>') and (field[x+1][y+1] != '.'):
+                bools.append(False)
+    if field[hight-1][width-1]=='>' and field[hight-1][0]=='.':
+        bools.append(True)
+        cucumbers.append([3, hight-1, width-1])
+    if field[hight-1][width-1]=='>' and field[hight-1][0]!='.':
+        bools.append(False)
+    if field[hight-1][width-1]=='v' and field[0][width-1]=='.':
+        bools.append(True)
+        cucumbers.append([4, hight-1, width-1])
+    if field[hight-1][width-1]=='v' and field[0][width-1]!='.':
+        bools.append(False)
+    if len(bools) != count: raise Exception('count != bools!', len(bools))
+    return cucumbers
+
+
+def moving(orig_field, step=None):
+    copy_field = copy.deepcopy(orig_field)
+    hight, width = len(copy_field), len(copy_field[0])
+    count = 0
+    for x in range(hight):
+        for y in range(width):
+            if copy_field[x][y] != '.': count+=1
+    steps = 0
+    move = True
+    while move:
+        steps+=1
+        for herd in ['east', 'north']:
+            cucumbers = can_move_any(copy_field, hight, width, count)
+            if len(cucumbers) < 1: move = False
+            for cucumber in cucumbers:
+                if herd == 'east':
+                    match cucumber:
+                        case [1, x, y]: copy_field[x][y] = '.'; copy_field[x][y+1]='>'
+                        case [3, x, y]: copy_field[x][y] = '.'; copy_field[x][0]='>'
+                else:
+                    match cucumber:
+                        case [2, x, y]: copy_field[x][y] = '.'; copy_field[x+1][y]='v'
+                        case [4, x, y]: copy_field[x][y]='.'; copy_field[0][y]='v'
+            
+        
+        if step and steps == step:
+            break
+    return copy_field, steps, ["".join(line) for line in copy_field]
+
+def check_move(arr):
+    right = np.where(arr == '>')
+    down = np.where(arr == 'v')
+    h, w = arr.shape
+    can_move = []
+    for x, y in zip(right[0], right[1]):
+        if y == w-1:
+            if arr[x, 0] == '.': can_move.append([3, x, y])
+        else:
+            if arr[x, y+1] == '.': can_move.append([1, x, y])
+    for x, y in zip(down[0], down[1]):
+        if x == h-1:
+            if arr[0, y] == '.': can_move.append([4, x, y])
+        else:
+            if arr[x+1, y] == '.': can_move.append([2, x, y])
+    return can_move, True if can_move else False
+
+def array_like(input):
+    arr = np.array([list(line) for line in input])
+    np.count_nonzero(arr!='.')
+    steps = 0
+    move = True
+    while move:
+        steps+=1
+        for herd in ['east', 'north']:
+            cucumbers, move = check_move(arr)
+            if len(cucumbers) < 1: move = False; break
+            for cucumber in cucumbers:
+                if herd == 'east':
+                    match cucumber:
+                        case [1, x, y]: arr[x][y] = '.'; arr[x][y+1]='>'
+                        case [3, x, y]: arr[x][y] = '.'; arr[x][0]='>'
+                else:
+                    match cucumber:
+                        case [2, x, y]: arr[x][y] = '.'; arr[x+1][y]='v'
+                        case [4, x, y]: arr[x][y]='.'; arr[0][y]='v'
+    return arr, steps, ["".join(line) for line in arr]
+
+
+@bench
+def part1(input):
+    field = [list(line) for line in input]
+    _, steps, _ = array_like(field)
+    print('The asnwer of part1 is:', steps+1)
+
+
+
+if __name__ == '__main__':
+    
+    input, example = get_input(task_dir, 25)
+    
+    check_example(example, part1)
+    part1(input)
+    
+    generate_readme(task_dir, 25)