Day 2

day2/so1.py

@@ -0,0 +1,29 @@
+base  = lambda l,w: l*w
+front = lambda w,h: w*h
+side  = lambda h,l: h*l
+
+def paper(l: int, w: int, h: int):
+    base = l*w
+    front = w*h
+    side = h*l
+    sup = min(base, front, side)
+
+    return 2*base + 2*front + 2*side + sup
+
+def paper_from_str(s: str):
+    l, w, h = map(int, s.split('x'))
+    return paper(l, w, h)
+
+def test():
+    assert paper_from_str("2x3x4") == 58
+    assert paper_from_str("1x1x10") == 43
+
+def solution():
+    s = 0
+    with open("in1") as puzzle:
+        for l in puzzle:
+            s += paper_from_str(l)
+    return s
+
+if __name__ == "__main__":
+    print(f"Total paper: {solution()}")

day2/so2.py

@@ -0,0 +1,27 @@
+def bow(l,w,h):
+    base = 2*l + 2*w
+    front = 2*w + 2*h
+    side = 2*h + 2*l
+
+    rib = min([base, front, side])
+    rib += l*w*h
+
+    return rib
+
+def bow_from_str(s):
+    l,w,h = map(int, s.split('x'))
+    return bow(l,w,h)
+
+def test():
+    assert bow_from_str("2x3x4") == 34
+    assert bow_from_str("1x1x10") == 14
+
+def solution():
+    s = 0
+    with open("in2") as puzzle:
+        for l in puzzle:
+            s += bow_from_str(l)
+    return s
+
+if __name__ == "__main__":
+    print(f"Bow: {solution()}")