2022 day 7a solved

2022/7.py

@@ -0,0 +1,29 @@
+lines = [[l.split(" ") for l in m.splitlines()] for m in open("input.txt", 'r').read().split("$ ")][1:]
+
+path = ["/"]
+sizes = {"/":0}
+sum = 0
+
+for l in lines:
+    if l[0][0] == "cd":
+        if l[0][1] == "/":
+            path = ["/"]
+        elif l[0][1] == "..":
+            path.pop()
+        else:
+            path.append(l[0][1]+"/")
+    elif l[0][0] == "ls":
+        for i in range(1,len(l)):
+            if l[i][0] == "dir":
+                sizes["".join(path) + l[i][1]+"/"] = 0
+            else:
+                sofar = ""
+                for p in path:
+                    sofar += p
+                    sizes[sofar] += int(l[i][0])
+
+for s in sizes:
+    if sizes[s] <= 100000:
+        sum += sizes[s]
+
+print(sum)