feat: solve day 2 puzzle 1

src/lib/utils.lua

@@ -78,14 +78,18 @@ function utils.waitForKey(targetKey)
     end
 end
 
-function utils.splitLines(data)
+function utils.split(data, sep)
     local t = {}
-    for str in string.gmatch(data, "([^\n]+)") do
+    for str in string.gmatch(data, "([^" .. sep .. "]+)") do
         table.insert(t, str)
     end
     return t
 end
 
+function utils.splitLines(data)
+    return utils.split(data, "\n")
+end
+
 function utils.round(x)
     return x >= 0 and math.floor(x + 0.5) or math.ceil(x - 0.5)
 end