From b1578f5709200a82fe3da28dc4bb8af26c902297 Mon Sep 17 00:00:00 2001 From: Mikael CAPELLE Date: Fri, 16 Dec 2022 09:21:54 +0100 Subject: [PATCH] Add ugly day 16, to be improved... --- 2022/day16.py | 105 ++++++++++++++++++++++++++++++++++++++++++ 2022/inputs/day16.txt | 64 +++++++++++++++++++++++++ 2 files changed, 169 insertions(+) create mode 100644 2022/day16.py create mode 100644 2022/inputs/day16.txt diff --git a/2022/day16.py b/2022/day16.py new file mode 100644 index 0000000..6990b01 --- /dev/null +++ b/2022/day16.py @@ -0,0 +1,105 @@ +# -*- encoding: utf-8 -*- + +import itertools +import re +import sys + +from docplex.mp.model import Model + +lines = sys.stdin.read().splitlines() + +pipes: dict[str, tuple[int, list[str]]] = {} +for line in lines: + r = re.match( + R"Valve ([A-Z]+) has flow rate=([0-9]+); tunnels? leads? to valves? (.+)", + line, + ).groups() + + pipes[r[0]] = (int(r[1]), r[2].split(", ")) + + +start_pipe = "AA" +max_time = 30 + +# +max_time = 26 +ee = [0, 1] + +m = Model() + +present_at = m.binary_var_dict( + (e, t, pipe) for e, t, pipe in itertools.product(ee, range(max_time), pipes) +) +open_at = m.binary_var_dict( + (e, t, pipe) for e, t, pipe in itertools.product(ee, range(max_time), pipes) +) + +for e in ee: + m.add_constraint(present_at[e, 0, start_pipe] == 1) + +for e, pipe in itertools.product(ee, pipes): + m.add_constraint(open_at[e, 0, pipe] == 0) + +for e, t in itertools.product(ee, range(max_time)): + m.add_constraint(m.sum(present_at[e, t, pipe] for pipe in pipes) == 1) + +for e, t, pipe in itertools.product(ee, range(1, max_time), pipes): + m.add_constraint( + present_at[e, t, pipe] + <= present_at[e, t - 1, pipe] + + m.sum(present_at[e, t - 1, pipe2] for pipe2 in pipes[pipe][1]) + ) + + for pipe2 in pipes: + if pipe2 != pipe: + m.add_constraint(present_at[e, t, pipe] <= 1 - open_at[e, t - 1, pipe2]) + +for e, t, pipe in itertools.product(ee, range(1, max_time), pipes): + m.add_constraint(open_at[e, t, pipe] <= present_at[e, t, pipe]) + +# keeps flowing +flowing_at = m.binary_var_dict( + (t, pipe) for t, pipe in itertools.product(range(max_time), pipes) +) + +for t, pipe in itertools.product(range(max_time), pipes): + m.add_constraint( + flowing_at[t, pipe] + == m.sum(open_at[e, t2, pipe] for e, t2 in itertools.product(ee, range(0, t))) + ) + + +# objective +m.set_objective( + "max", + m.sum( + flowing_at[t, pipe] * pipes[pipe][0] + for t, pipe in itertools.product(range(max_time), pipes) + ), +) + +m.log_output = True +s = m.solve() + +print(s.get_objective_value()) + + +# for t in range(max_time): +# present = { +# e: [pipe for pipe in pipes if s.get_value(present_at[e, t, pipe]) > 1e-6] +# for e in ee +# } +# opent = { +# e: [pipe for pipe in pipes if s.get_value(open_at[e, t, pipe]) > 1e-6] +# for e in ee +# } +# flowing = [ +# pipe +# for pipe in pipes +# if any(s.get_value(flowing_at[e, t, pipe]) > 1e-6 for e in ee) +# ] + +# p = [present[e][0] for e in ee] +# o = [opent[e][0] if opent[e] else "-" for e in ee] + +# print(f"t={t}, at={p}, open={o}, flowing={flowing}") diff --git a/2022/inputs/day16.txt b/2022/inputs/day16.txt new file mode 100644 index 0000000..2727099 --- /dev/null +++ b/2022/inputs/day16.txt @@ -0,0 +1,64 @@ +Valve MU has flow rate=0; tunnels lead to valves VT, LA +Valve TQ has flow rate=0; tunnels lead to valves HU, SU +Valve YH has flow rate=0; tunnels lead to valves CN, BN +Valve EO has flow rate=0; tunnels lead to valves IK, CN +Valve MH has flow rate=0; tunnels lead to valves GG, HG +Valve RJ has flow rate=0; tunnels lead to valves AA, RI +Valve XZ has flow rate=0; tunnels lead to valves PX, VT +Valve UU has flow rate=0; tunnels lead to valves DT, XG +Valve KV has flow rate=13; tunnels lead to valves HN, CV, PE, XD, TA +Valve SU has flow rate=19; tunnels lead to valves TQ, HF, OL, SF +Valve BB has flow rate=0; tunnels lead to valves NS, HR +Valve RI has flow rate=4; tunnels lead to valves ML, EE, TZ, RJ, PE +Valve TZ has flow rate=0; tunnels lead to valves VT, RI +Valve LY has flow rate=0; tunnels lead to valves EE, RP +Valve PX has flow rate=0; tunnels lead to valves XZ, JQ +Valve VH has flow rate=0; tunnels lead to valves DT, TA +Valve HN has flow rate=0; tunnels lead to valves KV, LR +Valve LR has flow rate=0; tunnels lead to valves HR, HN +Valve NJ has flow rate=0; tunnels lead to valves QF, JC +Valve AM has flow rate=0; tunnels lead to valves OJ, AA +Valve FM has flow rate=0; tunnels lead to valves VT, RP +Valve VT has flow rate=5; tunnels lead to valves IP, XZ, TZ, FM, MU +Valve HF has flow rate=0; tunnels lead to valves NR, SU +Valve HR has flow rate=11; tunnels lead to valves BB, KO, LR +Valve WX has flow rate=0; tunnels lead to valves CN, IP +Valve PE has flow rate=0; tunnels lead to valves KV, RI +Valve QF has flow rate=17; tunnels lead to valves YI, NJ +Valve EE has flow rate=0; tunnels lead to valves LY, RI +Valve UH has flow rate=25; tunnel leads to valve YI +Valve CV has flow rate=0; tunnels lead to valves KV, NS +Valve SF has flow rate=0; tunnels lead to valves YN, SU +Valve RP has flow rate=3; tunnels lead to valves HG, FM, OJ, IK, LY +Valve XD has flow rate=0; tunnels lead to valves IL, KV +Valve GG has flow rate=12; tunnels lead to valves ML, IL, MH, OL, KA +Valve XG has flow rate=0; tunnels lead to valves LI, UU +Valve YA has flow rate=21; tunnels lead to valves UJ, GQ +Valve OL has flow rate=0; tunnels lead to valves GG, SU +Valve AN has flow rate=0; tunnels lead to valves AA, IX +Valve LI has flow rate=15; tunnel leads to valve XG +Valve GQ has flow rate=0; tunnels lead to valves YA, KO +Valve HU has flow rate=0; tunnels lead to valves TQ, DT +Valve OJ has flow rate=0; tunnels lead to valves RP, AM +Valve YN has flow rate=0; tunnels lead to valves SF, JQ +Valve ML has flow rate=0; tunnels lead to valves RI, GG +Valve UJ has flow rate=0; tunnels lead to valves YA, NS +Valve IX has flow rate=0; tunnels lead to valves AN, JQ +Valve JC has flow rate=0; tunnels lead to valves JQ, NJ +Valve TA has flow rate=0; tunnels lead to valves KV, VH +Valve DT has flow rate=16; tunnels lead to valves UU, HU, KA, VH +Valve NR has flow rate=0; tunnels lead to valves HF, CN +Valve YI has flow rate=0; tunnels lead to valves QF, UH +Valve AA has flow rate=0; tunnels lead to valves AM, AN, BN, LA, RJ +Valve BN has flow rate=0; tunnels lead to valves AA, YH +Valve KA has flow rate=0; tunnels lead to valves GG, DT +Valve IL has flow rate=0; tunnels lead to valves GG, XD +Valve CN has flow rate=7; tunnels lead to valves YH, EO, WX, NR, OM +Valve IP has flow rate=0; tunnels lead to valves WX, VT +Valve OM has flow rate=0; tunnels lead to valves CN, JQ +Valve KO has flow rate=0; tunnels lead to valves GQ, HR +Valve LA has flow rate=0; tunnels lead to valves AA, MU +Valve JQ has flow rate=6; tunnels lead to valves IX, JC, PX, YN, OM +Valve IK has flow rate=0; tunnels lead to valves EO, RP +Valve HG has flow rate=0; tunnels lead to valves MH, RP +Valve NS has flow rate=23; tunnels lead to valves CV, BB, UJ