day 5, hurrah for deques

.tool-versions

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+python 3.9.9

d05/part1.py

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+import sys
+from collections import deque
+# init data structure
+S = list()
+for _ in range(9):
+	S.append(deque())
+# parse initial positions
+for _ in range(8):
+	line = next(sys.stdin)
+	for j in range(9):
+		c = line[4*j+1]
+		if c != " ":
+			S[j].append(c)
+line = next(sys.stdin)
+line = next(sys.stdin)
+# process
+while line := sys.stdin.readline():
+	_, q, _, f, _, t = line.strip().split(" ")
+	for _ in range(int(q)):
+		S[int(t)-1].appendleft(S[int(f)-1].popleft())
+# print final positions
+print("".join(s.popleft() for s in S))

d05/part2.py

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+import sys
+from collections import deque
+# init data structure
+S = list()
+for _ in range(9):
+	S.append(deque())
+# parse initial positions
+for _ in range(8):
+	line = next(sys.stdin)
+	for j in range(9):
+		c = line[4*j+1]
+		if c != " ":
+			S[j].append(c)
+line = next(sys.stdin)
+line = next(sys.stdin)
+# process
+while line := sys.stdin.readline():
+	_, q, _, f, _, t = line.strip().split(" ")
+	tmp = deque()
+	for _ in range(int(q)):
+		tmp.append(S[int(f)-1].popleft())
+	for _ in range(int(q)):
+		S[int(t)-1].appendleft(tmp.pop())
+# print final positions
+print("".join(s.popleft() for s in S))