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Fix second star day2

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This commit is contained in:
Bas Grolleman
2025-12-02 19:52:52 +01:00
parent fffa4ea539
commit c14c4d3193
1 changed files with 55 additions and 27 deletions
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82
2025/Day2/Day2_second.lua
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@@ -2,9 +2,10 @@
local TotalInvalid = 0 local TotalInvalid = 0
local Input = local Input =
"11-22,95-115,998-1012,1188511880-1188511890,222220-222224,1698522-1698528,446443-446449,38593856-38593862,565653-565659,824824821-824824827,2121212118-2121212124" --"11-22,95-115,998-1012,1188511880-1188511890,222220-222224,1698522-1698528,446443-446449,38593856-38593862,565653-565659,824824821-824824827,2121212118-2121212124"
-- Full "78847-119454,636-933,7143759788-7143793713,9960235-10043487,44480-68595,23468-43311,89-123,785189-1014654,3829443354-3829647366,647009-692765,2-20,30-42,120909-197026,5477469-5677783,9191900808-9191943802,1045643-1169377,46347154-46441299,2349460-2379599,719196-779497,483556-641804,265244-450847,210541-230207,195-275,75702340-75883143,58-84,2152-3237,3367-5895,1552-2029,9575-13844,6048-8966,419388311-419470147,936-1409,9292901468-9292987321" "78847-119454,636-933,7143759788-7143793713,9960235-10043487,44480-68595,23468-43311,89-123,785189-1014654,3829443354-3829647366,647009-692765,2-20,30-42,120909-197026,5477469-5677783,9191900808-9191943802,1045643-1169377,46347154-46441299,2349460-2379599,719196-779497,483556-641804,265244-450847,210541-230207,195-275,75702340-75883143,58-84,2152-3237,3367-5895,1552-2029,9575-13844,6048-8966,419388311-419470147,936-1409,9292901468-9292987321"
local DEBUG = true local DEBUG = false
--local DEBUG = true
function debug(displaystring) function debug(displaystring)
if DEBUG then if DEBUG then
@@ -12,33 +13,60 @@ function debug(displaystring)
end end
end end
-- TODO Second star, it's not doing the loop for 1 elements function checkValid(Serial)
-- TODO Move the self check in function (maybe for cleanup stage) for L = 1, math.floor(string.len(Serial) / 2) do
for CheckRange in string.gmatch(Input, "([^,]+)") do local SingleElement = string.sub(Serial, 1, L)
local Start, End = CheckRange:match("^(%d+)-(%d+)$") debug("Checking block size " .. L .. " " .. SingleElement)
for Check = Start, End do local SerialTest = ""
local valid = true for B = 1, math.floor(string.len(Serial) / L) do
for L = 1, string.len(Check) / 2 do SerialTest = SerialTest .. SingleElement
if string.len(Check) % L == 0 then
local SingleElement = string.sub(Check, 1, string.len(Check) / L)
-- debug(SingleElement)
local CheckTest = ""
for B = 1, L do
CheckTest = CheckTest .. SingleElement
end
-- debug(" Compare (" .. Check .. ") == (" .. CheckTest .. ")")
if tonumber(Check) == tonumber(CheckTest) then
debug(" Invalid " .. Check)
valid = false
end
end
end end
if not valid then debug(" Compare (" .. Serial .. ") == (" .. SerialTest .. ")")
TotalInvalid = TotalInvalid + Check if tonumber(Serial) == tonumber(SerialTest) then
debug(" Invalid " .. Serial)
return false
end end
end end
return true
end
function serialTest(Serial)
if checkValid(Serial) then
print("Valid " .. Serial)
else
print("Invalid " .. Serial)
end
end
function checkRange(Start, End)
local Total = 0
for Serial = Start, End do
if not checkValid(Serial) then
debug(" Invalid " .. Serial)
Total = Total + Serial
end
end
return Total
end
print("## Selfcheck - Valid")
serialTest("12")
serialTest("123")
print("## Selfcheck - Invalid")
serialTest("11")
serialTest("22")
serialTest("99")
serialTest("111")
serialTest("565656")
serialTest("123123")
print("## Get to work")
for CheckRange in string.gmatch(Input, "([^,]+)") do
local Start, End = CheckRange:match("^(%d+)-(%d+)$")
TotalInvalid = TotalInvalid + checkRange(Start, End)
end end
print("Total Count Invalid IDs " .. TotalInvalid) print("Total Count Invalid IDs " .. TotalInvalid)
local diff = 4174379265 - TotalInvalid -- local diff = 4174379265 - TotalInvalid
print("Difference with check " .. diff) -- print("Difference with check " .. diff)