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Valve JI has flow rate=21; tunnels lead to valves WI, XG
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Valve DM has flow rate=3; tunnels lead to valves JX, NG, AW, BY, PF
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Valve AZ has flow rate=0; tunnels lead to valves FJ, VC
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Valve YQ has flow rate=0; tunnels lead to valves TE, OP
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Valve WI has flow rate=0; tunnels lead to valves JI, VC
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Valve NE has flow rate=0; tunnels lead to valves ZK, AA
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Valve FM has flow rate=0; tunnels lead to valves LC, DU
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Valve QI has flow rate=0; tunnels lead to valves TE, JW
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Valve OY has flow rate=0; tunnels lead to valves XS, VF
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Valve XS has flow rate=18; tunnels lead to valves RR, OY, SV, NQ
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Valve NU has flow rate=0; tunnels lead to valves IZ, BD
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Valve JX has flow rate=0; tunnels lead to valves DM, ZK
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Valve WT has flow rate=23; tunnels lead to valves OV, QJ
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Valve KM has flow rate=0; tunnels lead to valves TE, OL
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Valve NG has flow rate=0; tunnels lead to valves II, DM
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Valve FJ has flow rate=0; tunnels lead to valves AZ, II
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Valve QR has flow rate=0; tunnels lead to valves ZK, KI
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Valve KI has flow rate=9; tunnels lead to valves ZZ, DI, TL, AJ, QR
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Valve ON has flow rate=0; tunnels lead to valves LC, QT
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Valve AW has flow rate=0; tunnels lead to valves DM, AA
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Valve HI has flow rate=0; tunnels lead to valves TE, VC
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Valve XG has flow rate=0; tunnels lead to valves II, JI
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Valve II has flow rate=19; tunnels lead to valves LF, NG, OL, FJ, XG
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Valve VC has flow rate=24; tunnels lead to valves WI, HI, AZ
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Valve VJ has flow rate=0; tunnels lead to valves UG, AA
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Valve IZ has flow rate=0; tunnels lead to valves VF, NU
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Valve EJ has flow rate=0; tunnels lead to valves ZK, LC
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Valve DU has flow rate=12; tunnels lead to valves TC, UG, FM
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Valve ZK has flow rate=10; tunnels lead to valves JX, EJ, JW, QR, NE
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Valve XF has flow rate=25; tunnels lead to valves OP, VT
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Valve LC has flow rate=4; tunnels lead to valves FM, EJ, ON, AJ, PF
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Valve SV has flow rate=0; tunnels lead to valves XS, IY
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Valve LF has flow rate=0; tunnels lead to valves II, OV
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Valve DI has flow rate=0; tunnels lead to valves KI, BY
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Valve OP has flow rate=0; tunnels lead to valves YQ, XF
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Valve NQ has flow rate=0; tunnels lead to valves TC, XS
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Valve QJ has flow rate=0; tunnels lead to valves VT, WT
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Valve IY has flow rate=22; tunnel leads to valve SV
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Valve AJ has flow rate=0; tunnels lead to valves LC, KI
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Valve TE has flow rate=11; tunnels lead to valves QI, HI, KM, YQ
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Valve ZZ has flow rate=0; tunnels lead to valves KI, AA
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Valve VT has flow rate=0; tunnels lead to valves XF, QJ
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Valve OL has flow rate=0; tunnels lead to valves KM, II
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Valve TC has flow rate=0; tunnels lead to valves NQ, DU
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Valve TL has flow rate=0; tunnels lead to valves VF, KI
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Valve QT has flow rate=0; tunnels lead to valves AA, ON
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Valve BY has flow rate=0; tunnels lead to valves DM, DI
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Valve OV has flow rate=0; tunnels lead to valves LF, WT
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Valve VN has flow rate=0; tunnels lead to valves RR, BD
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Valve VF has flow rate=13; tunnels lead to valves OY, IZ, TL
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Valve BD has flow rate=17; tunnels lead to valves NU, VN
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Valve UG has flow rate=0; tunnels lead to valves VJ, DU
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Valve PF has flow rate=0; tunnels lead to valves LC, DM
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Valve RR has flow rate=0; tunnels lead to valves XS, VN
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Valve AA has flow rate=0; tunnels lead to valves QT, ZZ, AW, VJ, NE
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Valve JW has flow rate=0; tunnels lead to valves ZK, QI
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@ -0,0 +1,49 @@
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G = []
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for line in open("input"):
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words = line.split()
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valve = words[1]
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rate = words[4]
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edges = [x.strip(", ") for x in words[9:]]
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print(rate)
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rate = rate.strip(";")
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rate = rate[rate.index("=")+1:]
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rate = int(rate)
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G.append((valve, rate, edges))
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print(G)
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#import astar
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score = {'AA': (0, frozenset())}
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#E = {x[0]: x[2] for x in G}
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#assert all(v in E[e] for v in E for e in E[v])
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# find the largest reward we can get in n steps
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# then find the largest reward we can get in n+1 steps
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minutes = 30
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for _ in range(30):
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minutes -= 1
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next = {}
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for v, r, E in G:
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s = set()
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if v in score:
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reward, open = score[v]
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# stay, don't open valve
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s.add((reward, open))
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# stay in place, open valve
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if v not in open:
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reward += r*minutes
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open = open.union(frozenset([v]))
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s.add((reward, open))
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# move here from somewhere else
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for e in E:
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if e in score:
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s.add(score[e])
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if s:
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reward, open = max(s)
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next[v] = (reward,open)
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score = next
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print(score)
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print(max(r for r,_ in score.values()))
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Reference in New Issue