diff --git a/2023/day18/input b/2023/day18/input
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index 0000000..79212d7
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+U 4 (#0f2091)
+L 4 (#9d29c0)
+U 9 (#475a73)
+L 2 (#108610)
+U 3 (#1e5423)
+L 8 (#394192)
+U 3 (#0274b3)
diff --git a/2023/day18/solutions.py b/2023/day18/solutions.py
new file mode 100644
index 0000000..5b066f3
--- /dev/null
+++ b/2023/day18/solutions.py
@@ -0,0 +1,19 @@
+import numpy as np
+
+with open("input") as f:
+    ws = [l.split() for l in f.read().strip().split("\n")]
+
+dirs = {"R": 1j, "L": -1j, "U": -1, "D": 1}
+
+
+def solve(instructions):
+    vs = np.array([dirs[d] * dist for d, dist in instructions])
+    return abs(np.sum(np.cumsum(vs.real) * vs.imag)) + np.sum(np.abs(vs)) / 2 + 1
+
+
+# Part 1
+print(solve((d, int(length)) for d, length, _ in ws))
+
+# Part 2
+table = {"0": "R", "1": "D", "2": "L", "3": "U"}
+print(solve((table[color[-2]], int(color[2:-2], 16)) for _, _, color in ws))