use read_lines instead of read + split

RomainFranceschini · Dec 3, 2020 · 866d357 · 866d357
1 parent 9f839a9
commit 866d357
Show file tree

Hide file tree

Showing 4 changed files with 4 additions and 8 deletions.
diff --git a/src/day01.cr b/src/day01.cr
@@ -1,6 +1,5 @@
 File
-  .read("#{__DIR__}/../input/01.dat")
-  .split
+  .read_lines("#{__DIR__}/../input/01.dat")
   .map(&.to_i)
   .each_combination(ARGV.first?.try(&.to_i) || 2, reuse: true) do |p|
     if p.sum == 2020

diff --git a/src/day02.1.cr b/src/day02.1.cr
@@ -1,6 +1,5 @@
 puts File
-  .read("#{__DIR__}/../input/02.dat")
-  .split('\n')
+  .read_lines("#{__DIR__}/../input/02.dat")
   .map(&.match(/(?<x>\d+)-(?<y>\d+) (?<letter>\w): (?<password>\w+)/).not_nil!)
   .count { |match|
     range = (match["x"].to_i..match["y"].to_i)

diff --git a/src/day02.2.cr b/src/day02.2.cr
@@ -1,6 +1,5 @@
 puts File
-  .read("#{__DIR__}/../input/02.dat")
-  .split('\n')
+  .read_lines("#{__DIR__}/../input/02.dat")
   .map(&.match(/(?<x>\d+)-(?<y>\d+) (?<letter>\w): (?<password>\w+)/).not_nil!)
   .count { |match|
     indices = {match["x"].to_i - 1, match["y"].to_i - 1}

diff --git a/src/day03.1.cr b/src/day03.1.cr
@@ -1,7 +1,6 @@
 i = 0
 puts File
-  .read("#{__DIR__}/../input/03.dat")
-  .split('\n')
+  .read_lines("#{__DIR__}/../input/03.dat")
   .reduce(0) { |acc, row|
     cell = row[i]
     i = (i + 3) % row.size