added days: 15_p1, 17, 20, 21, 22, 23_p1, 24, 25

1 files changed, 47 insertions, 0 deletions

diff --git a/2018/aoc2018-d23-p1.py b/2018/aoc2018-d23-p1.py
new file mode 100644
index 0000000..a387337
--- /dev/null
+++ b/2018/aoc2018-d23-p1.py
@@ -0,0 +1,47 @@
+#advent of code 2018 
+#day 23
+#part 1 and part 2
+
+
+f = open("input.txt",'r');
+Testing = False;
+#Testing = True; 
+if Testing:
+	f.close();
+	f = open("testinput.txt",'r');
+
+def manhattan(pos1, pos2):
+	mx = abs(pos1[0] - pos2[0]);
+	my = abs(pos1[1] - pos2[1]);
+	mz = abs(pos1[2] - pos2[2]);
+	return mx + my + mz;
+
+class nanobot:
+	def __init__(self, pos, r):
+		self.pos = pos;
+		self.radius = r;
+	def __str__(self):
+		return f'pos={self.pos}, r={self.radius}';
+
+bots = [];
+for l in f:
+	l = l.replace("<","(");
+	l = l.replace(">",")");
+	l = l.replace("r=","");
+	l = l.replace("pos=","");
+	p, r = eval(l);
+	bots.append(nanobot(p,r));
+
+f.close();
+
+strongest_radius = 0;
+strongest_pos = None;
+for bot in bots:
+	if bot.radius > strongest_radius:
+		strongest_radius = bot.radius;
+		strongest_pos = bot.pos;
+
+part1 = 0;
+for bot in bots:
+	if (manhattan(strongest_pos, bot.pos) <= strongest_radius): part1 += 1;
+print("part1 = ", part1);