day 14, 1E9 is not more than 1E3

d14/part1.py

@@ -0,0 +1,30 @@
+import sys
+
+# load ptf flat
+G = [list(l) for l in sys.stdin.read().splitlines()]
+W = len(G[0])
+H = len(G)
+print(W,H)
+
+# move far north each com
+for x in range(W):
+    for y in range(H):
+        print(f'{x=},{y=} = {G[y][x]}')
+        if G[y][x] == "O":
+            for j in range(y-1,0-1,-1):
+                print(f'{j=}')
+                if G[j][x] == '.':  # can go north
+                    print(f'north, {j=}')
+                    G[j][x] = "O"
+                    G[j+1][x] = "."
+                else:
+                    break
+
+S = 0              
+for y,row in enumerate(G):
+    print(''.join(row))
+    S += (H-y)*row.count('O')
+print(S)
+
+# compute
+

d14/part2.py

@@ -0,0 +1,59 @@
+import sys
+
+I = sys.stdin.read().splitlines()
+G = [list(l) for l in I]
+W = len(G[0])
+H = len(G)
+
+def north():
+    for x in range(W):
+        for y in range(H):
+            if G[y][x] == "O":
+                for j in range(y-1,0-1,-1):
+                    if G[j][x] == '.':
+                        G[j][x] = "O"
+                        G[j+1][x] = "."
+                    else:
+                        break
+
+def south():
+    for x in range(W):
+        for y in range(H-1,0-1,-1):
+            if G[y][x] == "O":
+                for j in range(y+1,W,1):
+                    if G[j][x] == '.':
+                        G[j][x] = "O"
+                        G[j-1][x] = "."
+                    else:
+                        break
+
+def east():
+    for y in range(H):
+        for x in range(W-1,0-1,-1):
+            if G[y][x] == "O":
+                for i in range(x+1,H,1):
+                    if G[y][i] == '.':
+                        G[y][i] = "O"
+                        G[y][i-1] = "."
+                    else:
+                        break
+
+
+def west():
+    for y in range(H):
+        for x in range(W):
+            if G[y][x] == "O":
+                for i in range(x-1,0-1,-1):
+                    if G[y][i] == '.':
+                        G[y][i] = "O"
+                        G[y][i+1] = "."
+                    else:
+                        break
+
+for _ in range(1_000):
+    north()
+    west()
+    south()
+    east()
+
+print(sum((H-y)*row.count('O') for y,row in enumerate(G)))