day 3

3/a.py

@@ -0,0 +1,67 @@
+#!/usr/bin/env python3
+
+
+WIDTH = 1000
+HEIGHT = 1000
+
+
+def finddims():
+    # find how big the canvas is from our input
+    maxX = 0
+    maxY = 0
+    for x, y, w, h in iterclaims():
+        xsize = x + w
+        if xsize > maxX:
+            maxX = xsize
+        ysize = y + h
+        if ysize > maxY:
+            maxY = ysize
+    print(maxX, maxY)  # 999, 999
+
+
+def iterclaims():
+    with open("input.txt") as f:
+        for line in f.readlines():
+            idx, _, coords, size = line.split()
+            coords = coords.rstrip(":")
+            x, y = coords.split(",")
+            w, h = size.split("x")
+            idx = idx.lstrip("#")
+            yield (int(idx), int(x), int(y), int(w), int(h))
+
+
+def buildarena(xs=WIDTH, ys=HEIGHT):
+    arena = []
+    for row in range(0, xs):
+        arena.append([0 for _ in range(0, ys)])
+    return arena
+
+
+def muxclaims(claims, arena):
+    for _, x, y, w, h in claims:
+        for xp in range(x, x + w):
+            for yp in range(y, y + h):
+                arena[xp][yp] += 1
+
+
+def buildworld():
+    arena = buildarena()
+    claims = iterclaims()
+    muxclaims(claims, arena)
+    return arena
+
+
+def main():
+    world = buildworld()
+    overclaims = 0
+    for x in range(0, WIDTH):
+        for y in range(0, HEIGHT):
+            if world[x][y] > 1:
+                overclaims += 1
+
+    print(overclaims)
+
+
+if __name__ == '__main__':
+    # finddims()
+    main()

3/b.py

@@ -0,0 +1,25 @@
+#!/usr/bin/env python3
+
+
+from a import iterclaims, buildworld
+
+
+def main():
+    world = buildworld()
+    for idx, x, y, w, h in iterclaims():
+        it = True
+        for xp in range(x, x + w):
+            for yp in range(y, y + h):
+                if world[xp][yp] != 1:
+                    it = False
+                    break
+            else:
+                continue
+            break
+        if it:
+            print(idx, x, y, w, h)
+            break
+
+
+if __name__ == '__main__':
+    main()