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compare: dory:330c51da3a22951e15e77e764ba5375c1aaf704f
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2 Commits
3024e45da7 ... 330c51da3a

Author SHA1 Message Date
Dory
330c51da3a d11p2 2023-12-11 00:03:27 -08:00
Dory
3e01d3394d d11p1 2023-12-11 00:03:18 -08:00
2 changed files with 10 additions and 8 deletions
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9
11/part1.pl
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@ -1,3 +1,4 @@
:- op(700, xfx, before).
:- table galaxy/2.
:- table no_galaxy_row/2.
:- table no_galaxy_col/2.
@ -6,14 +7,13 @@
start :-
input('input.txt', Map),
findall(Dist, distance(Map, _, _, Dist), Dists),
findall(Dist, (galaxy(Map, A), galaxy(Map, B), A before B,
distance(Map, A, B, Dist)),
Dists),
sum_list(Dists, Answer),
writef('Answer=%w\n', [Answer]).
distance(Map, X1-Y1, X2-Y2, Dist) :-
galaxy(Map, X1-Y1),
galaxy(Map, X2-Y2),
(X1 < X2; X1 =:= X2, Y1 < Y2),
findall(X, no_galaxy_row(Map, X), EmptyXs),
findall(Y, no_galaxy_col(Map, Y), EmptyYs),
include(between(X1, X2), EmptyXs, ExpandedX), length(ExpandedX, RowsToAdd),
@ -25,6 +25,7 @@ no_galaxy_row(Map, X) :- nth0(X, Map, Row), maplist([46]>>(true), Row).
no_galaxy_col(Map, Y) :- maplist({Y}/[Row]>>(nth0(Y, Row, 46)), Map).
galaxy(Map, X-Y) :- nth0(X, Map, Row), nth0(Y, Row, 35).
before(X1-Y1, X2-Y2) :- X1 < X2; X1 =:= X2, Y1 < Y2.
input(FileName, Map) :- phrase_from_file(lines(Map), FileName).
lines([]) --> eos, !.

9
11/part2.pl
View File

@ -1,3 +1,4 @@
:- op(700, xfx, before).
:- table galaxy/2.
:- table no_galaxy_row/2.
:- table no_galaxy_col/2.
@ -6,14 +7,13 @@
start :-
input('input.txt', Map),
findall(Dist, distance(Map, _, _, Dist), Dists),
findall(Dist, (galaxy(Map, A), galaxy(Map, B), A before B,
distance(Map, A, B, Dist)),
Dists),
sum_list(Dists, Answer),
writef('Answer=%w\n', [Answer]).
distance(Map, X1-Y1, X2-Y2, Dist) :-
galaxy(Map, X1-Y1),
galaxy(Map, X2-Y2),
(X1 < X2; X1 =:= X2, Y1 < Y2),
findall(X, no_galaxy_row(Map, X), EmptyXs),
findall(Y, no_galaxy_col(Map, Y), EmptyYs),
include(between(X1, X2), EmptyXs, ExpandedX), length(ExpandedX, RowsToAdd),
@ -25,6 +25,7 @@ no_galaxy_row(Map, X) :- nth0(X, Map, Row), maplist([46]>>(true), Row).
no_galaxy_col(Map, Y) :- maplist({Y}/[Row]>>(nth0(Y, Row, 46)), Map).
galaxy(Map, X-Y) :- nth0(X, Map, Row), nth0(Y, Row, 35).
before(X1-Y1, X2-Y2) :- X1 < X2; X1 =:= X2, Y1 < Y2.
input(FileName, Map) :- phrase_from_file(lines(Map), FileName).
lines([]) --> eos, !.