day16 - just work, nothing done

2022/full/day16.txt

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+Valve QJ has flow rate=11; tunnels lead to valves HB, GL
+Valve VZ has flow rate=10; tunnel leads to valve NE
+Valve TX has flow rate=19; tunnels lead to valves MG, OQ, HM
+Valve ZI has flow rate=5; tunnels lead to valves BY, ON, RU, LF, JR
+Valve IH has flow rate=0; tunnels lead to valves YB, QS
+Valve QS has flow rate=22; tunnel leads to valve IH
+Valve QB has flow rate=0; tunnels lead to valves QX, ES
+Valve NX has flow rate=0; tunnels lead to valves UH, OP
+Valve PJ has flow rate=0; tunnels lead to valves OC, UH
+Valve OR has flow rate=6; tunnels lead to valves QH, BH, HB, JD
+Valve OC has flow rate=7; tunnels lead to valves IZ, JR, TA, ZH, PJ
+Valve UC has flow rate=0; tunnels lead to valves AA, BY
+Valve QX has flow rate=0; tunnels lead to valves AA, QB
+Valve IZ has flow rate=0; tunnels lead to valves OC, SX
+Valve AG has flow rate=13; tunnels lead to valves NW, GL, SM
+Valve ON has flow rate=0; tunnels lead to valves MO, ZI
+Valve XT has flow rate=18; tunnels lead to valves QZ, PG
+Valve AX has flow rate=0; tunnels lead to valves UH, MO
+Valve JD has flow rate=0; tunnels lead to valves OR, SM
+Valve HM has flow rate=0; tunnels lead to valves TX, QH
+Valve LF has flow rate=0; tunnels lead to valves ZI, UH
+Valve QH has flow rate=0; tunnels lead to valves OR, HM
+Valve RT has flow rate=21; tunnel leads to valve PG
+Valve NE has flow rate=0; tunnels lead to valves VZ, TA
+Valve OQ has flow rate=0; tunnels lead to valves TX, GE
+Valve AA has flow rate=0; tunnels lead to valves QZ, UC, OP, QX, EH
+Valve UH has flow rate=17; tunnels lead to valves PJ, NX, AX, LF
+Valve GE has flow rate=0; tunnels lead to valves YB, OQ
+Valve EH has flow rate=0; tunnels lead to valves AA, MO
+Valve MG has flow rate=0; tunnels lead to valves TX, NW
+Valve YB has flow rate=20; tunnels lead to valves IH, GE, XG
+Valve MO has flow rate=15; tunnels lead to valves EH, ON, AX, ZH, CB
+Valve JR has flow rate=0; tunnels lead to valves ZI, OC
+Valve GL has flow rate=0; tunnels lead to valves AG, QJ
+Valve SM has flow rate=0; tunnels lead to valves JD, AG
+Valve HB has flow rate=0; tunnels lead to valves OR, QJ
+Valve TA has flow rate=0; tunnels lead to valves OC, NE
+Valve PG has flow rate=0; tunnels lead to valves RT, XT
+Valve XG has flow rate=0; tunnels lead to valves CB, YB
+Valve ES has flow rate=9; tunnels lead to valves QB, FL
+Valve BH has flow rate=0; tunnels lead to valves RU, OR
+Valve FL has flow rate=0; tunnels lead to valves SX, ES
+Valve CB has flow rate=0; tunnels lead to valves MO, XG
+Valve QZ has flow rate=0; tunnels lead to valves AA, XT
+Valve BY has flow rate=0; tunnels lead to valves UC, ZI
+Valve ZH has flow rate=0; tunnels lead to valves MO, OC
+Valve OP has flow rate=0; tunnels lead to valves NX, AA
+Valve NW has flow rate=0; tunnels lead to valves MG, AG
+Valve RU has flow rate=0; tunnels lead to valves ZI, BH
+Valve SX has flow rate=16; tunnels lead to valves IZ, FL

2022/python/day16.py

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+import sys
+import matrix
+import shared
+import scanf
+from dataclasses import dataclass
+from typing import List, Dict
+from pprint import pprint
+
+
+@dataclass
+class Valve:
+    label: str
+    rate: int
+    tunnels: List[str]
+    opened_at: int = -1
+    potential: Dict[str,int] = None
+
+    def set_potential(self, valves):
+        self.potential = {}
+        for tunnel in self.tunnels:
+            self.potential[tunnel] = valves[tunnel].rate
+
+    def highest_potential(self):
+        return max(self.potential, key=self.potential.get)
+
+def parse(rows):
+    valves = {}
+    for row in rows:
+        try:
+            left,right = row.split(" valves ")
+        except ValueError:
+            left,right = row.split(" valve ")
+        valve, rate = scanf.scanf("Valve %s has flow rate=%d; %*s %*s to", left)
+        if "," in right:
+            tunnels = right.split(", ")
+        else:
+            tunnels = [right,]
+        valves[valve] = Valve(label=valve,rate=rate,tunnels=tunnels)
+
+    for _,v in valves.items():
+        v.set_potential(valves)
+    return valves
+
+
+
+def part1(rows, sample=False):
+    p1 = Part1(rows,sample, 30)
+    p1.run()
+
+
+class Part1:
+    def __init__(self, rows, sample, minutes):
+        self.rows = rows
+        self.sample = sample
+        self.valves = parse(rows)
+        self.cur = self.valves["AA"]
+        self.tick = 1
+        self.minutes = minutes
+
+    def do_tick(self, minute):
+        pressure = 0 
+        opened = []
+        for _, valve in self.valves.items():
+            if valve.opened_at > 0:
+                continue
+            pressure += valve.rate
+        print(f"== Minute {minute} == [ {self.cur.label} ]")
+        print(f"\tValves {', '.join(opened)} are open, releasing {pressure} pressure")
+
+
+    def open_or_move(self):
+        #print(self.cur)
+        hi = self.cur.highest_potential()
+        potential_elsewhere = self.cur.potential
+        pe = potential_elsewhere[hi]
+        if pe > self.cur.rate:
+            #print(f"should move to {hi}")
+            self.move(hi)
+        elif self.cur.rate > pe:
+            print(f"should open {self.cur.label}")
+            self.open()
+
+    def move(self, where):
+        self.tick += 1
+        self.cur = self.valves[where]
+        print("\tMove to valve", where)
+
+    def open(self):
+        if self.cur.opened_at >= 0 :
+            raise Exception("tried to open valve already opened")
+        self.tick += 1
+        self.valves[self.cur.label].opened_at = self.tick
+        self.cur = self.valves[self.cur.label]
+        print(self.cur)
+
+    def calculate_total_flow(self):
+        total = 0
+        for label, valve in self.valves.items():
+            if valve.is_open:
+                total += valve.rate * (30 - valve.opened_at)
+        return total
+
+    def run(self):
+        for minute in range(1, self.minutes+1):
+            self.do_tick(minute)
+            self.open_or_move()
+
+        print("total flow:")
+        print(self.calculate_total_flow())
+
+
+
+def main():
+    sample = False
+    if sys.argv[-1] == "--sample":
+        sample = True
+    rows = [row for row in shared.load_rows(16)]
+
+    with shared.elapsed_timer() as elapsed:
+        part1(rows, sample)
+        print("🕒", elapsed())
+
+    #with shared.elapsed_timer() as elapsed:
+    #    part2(rows, sample)
+    #    print("🕒", elapsed())
+
+
+if __name__ == "__main__":
+    main()

2022/samples/day16.txt

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+Valve AA has flow rate=0; tunnels lead to valves DD, II, BB
+Valve BB has flow rate=13; tunnels lead to valves CC, AA
+Valve CC has flow rate=2; tunnels lead to valves DD, BB
+Valve DD has flow rate=20; tunnels lead to valves CC, AA, EE
+Valve EE has flow rate=3; tunnels lead to valves FF, DD
+Valve FF has flow rate=0; tunnels lead to valves EE, GG
+Valve GG has flow rate=0; tunnels lead to valves FF, HH
+Valve HH has flow rate=22; tunnel leads to valve GG
+Valve II has flow rate=0; tunnels lead to valves AA, JJ
+Valve JJ has flow rate=21; tunnel leads to valve II