[Python/2016] Move solutions into .py files

Python/2016/02.py

@@ -0,0 +1,50 @@
+from lib import *
+
+input = read_input(2016, 2)
+
+out = []
+x = y = 1
+for line in input.splitlines():
+    for c in line:
+        if c == "L" and x > 0:
+            x -= 1
+
+        elif c == "R" and x < 2:
+            x += 1
+
+        elif c == "U" and y > 0:
+            y -= 1
+
+        elif c == "D" and y < 2:
+            y += 1
+
+    out.append(y * 3 + x + 1)
+
+print(*out, sep="")
+
+
+out = ""
+x, y = 0, 2
+keypad = ["  1  ", " 234 ", "56789", " ABC ", "  D  "]
+for line in input.splitlines():
+    for c in line:
+        nx, ny = x, y
+
+        if c == "L":
+            nx -= 1
+
+        elif c == "R":
+            nx += 1
+
+        elif c == "U":
+            ny -= 1
+
+        elif c == "D":
+            ny += 1
+
+        if 0 <= nx < 5 and 0 <= ny < 5 and keypad[ny][nx] != " ":
+            x, y = nx, ny
+
+    out += keypad[y][x]
+
+print(out)