day7

day7-1.py

@@ -0,0 +1,85 @@
+import abc
+
+with open('input7.txt','r') as f:
+    inp = f.read().splitlines(keepends=False)
+
+class FSObject:
+    __metaclass__ = abc.ABCMeta
+
+    def __init__(self, parent):
+        self._parent = parent
+
+    @abc.abstractmethod
+    def name(self):
+        pass
+
+    @abc.abstractmethod
+    def size(self):
+        pass
+
+    def fullpath(self):
+        if self._parent:
+            return self._parent.fullpath() + "/" + self.name()
+        else:
+            return self.name()
+
+
+class File(FSObject):
+    def __init__(self, parent, name, size):
+        super(File, self).__init__(parent)
+        self._name = name
+        self._size = size
+    
+    def size(self):
+        return self._size
+
+class Directory(FSObject):
+    def __init__(self, parent, name):
+        super(Directory, self).__init__(parent)
+        self._name = name
+        self.contain = []
+
+    def newEntry(self, obj):
+        self.contain.append(obj)
+    
+    def size(self):
+        _size = 0
+        for x in self.contain:
+            _size += x.size()
+        return _size
+
+
+location = []
+rootdir = Directory(None, "")
+curdir = rootdir
+dirs = [rootdir]
+_all = []
+answer = 0
+
+for i in inp:
+    if i.startswith('$ cd'):
+        target = i[5:]
+        if target == '..':
+            location.pop()
+            dirs.pop()
+            curdir = dirs[-1]
+        else:
+            location.append(target)
+            newdir = Directory(curdir, target)
+            _all.append(newdir)
+            curdir.newEntry(newdir)
+            dirs.append(newdir)
+            curdir = newdir
+    elif i.startswith('$ ls'):
+        pass
+    else:
+        print(i)
+        tempa, tempb = i.split(' ', 1)
+        if tempa.isnumeric():
+            curdir.newEntry(File(curdir, tempb, int(tempa)))
+
+for i in _all:
+    if i.size() <= 100000:
+        answer += i.size()
+
+print(answer)

day7-2.py

@@ -0,0 +1,91 @@
+import abc
+
+with open('input7.txt','r') as f:
+    inp = f.read().splitlines(keepends=False)
+
+class FSObject:
+    __metaclass__ = abc.ABCMeta
+
+    def __init__(self, parent):
+        self._parent = parent
+
+    @abc.abstractmethod
+    def name(self):
+        pass
+
+    @abc.abstractmethod
+    def size(self):
+        pass
+
+    def fullpath(self):
+        if self._parent:
+            return self._parent.fullpath() + "/" + self.name()
+        else:
+            return self.name()
+
+
+class File(FSObject):
+    def __init__(self, parent, name, size):
+        super(File, self).__init__(parent)
+        self._name = name
+        self._size = size
+    
+    def size(self):
+        return self._size
+
+class Directory(FSObject):
+    def __init__(self, parent, name):
+        super(Directory, self).__init__(parent)
+        self._name = name
+        self.contain = []
+
+    def newEntry(self, obj):
+        self.contain.append(obj)
+    
+    def size(self):
+        _size = 0
+        for x in self.contain:
+            _size += x.size()
+        return _size
+
+
+location = []
+rootdir = Directory(None, "")
+curdir = rootdir
+dirs = [rootdir]
+_all = []
+answer = 0
+totalSpace = 70000000
+requiredSpace = 30000000
+opt = None
+
+for i in inp:
+    if i.startswith('$ cd'):
+        target = i[5:]
+        if target == '..':
+            location.pop()
+            dirs.pop()
+            curdir = dirs[-1]
+        else:
+            location.append(target)
+            newdir = Directory(curdir, target)
+            _all.append(newdir)
+            curdir.newEntry(newdir)
+            dirs.append(newdir)
+            curdir = newdir
+    elif i.startswith('$ ls'):
+        pass
+    else:
+        tempa, tempb = i.split(' ', 1)
+        if tempa.isnumeric():
+            curdir.newEntry(File(curdir, tempb, int(tempa)))
+
+freeSpace = totalSpace - rootdir.size()
+toDelete = requiredSpace - freeSpace
+
+for i in _all:
+    tempa = i.size()
+    if tempa >= toDelete and ((not opt) or tempa < opt):
+        opt = tempa
+
+print(opt)

in.txt

@@ -1,13 +1,23 @@
-[D]                     [N] [F]
-[H] [F]             [L] [J] [H]
-[R] [H]             [F] [V] [G] [H]
-[Z] [Q]         [Z] [W] [L] [J] [B]
-[S] [W] [H]     [B] [H] [D] [C] [M]
-[P] [R] [S] [G] [J] [J] [W] [Z] [V]
-[W] [B] [V] [F] [G] [T] [T] [T] [P]
-[Q] [V] [C] [H] [P] [Q] [Z] [D] [W]
- 1   2   3   4   5   6   7   8   9
-
-move 1 from 3 to 9
-move 2 from 2 to 1
-move 3 from 5 to 4
+$ cd /
+$ ls
+dir a
+14848514 b.txt
+8504156 c.dat
+dir d
+$ cd a
+$ ls
+dir e
+29116 f
+2557 g
+62596 h.lst
+$ cd e
+$ ls
+584 i
+$ cd ..
+$ cd ..
+$ cd d
+$ ls
+4060174 j
+8033020 d.log
+5626152 d.ext
+7214296 k