feat: add day5 6 7

solutions/05.sql

@@ -0,0 +1,82 @@
+create or replace table day05_data as
+  select
+    if('-' in column0, SPLIT(column0, '-')[1]::long, NULL) as range_start,
+    if('-' in column0, SPLIT(column0, '-')[2]::long, NULL) as range_end,
+    if('-' not in column0, column0::long, NULL) as product_id
+  from read_csv(
+       'inputs/05/input.txt',
+    header = false)
+  where (range_start is not null and range_end is not null) or product_id is not null
+;
+
+create or replace table day05_test as
+  select
+    if('-' in column0, SPLIT(column0, '-')[1]::long, NULL) as range_start,
+    if('-' in column0, SPLIT(column0, '-')[2]::long + 1, NULL) as range_end,
+    if('-' not in column0, column0::long, NULL) as product_id
+  from read_csv(
+       'inputs/05/test.txt',
+    header = false)
+  where (range_start is not null and range_end is not null) or product_id is not null
+;
+
+create or replace table day05_ranges as
+  select row_number() over (order by range_start) as range_id, range_start, range_end
+  from day05_data
+  where product_id is null;
+create or replace table day05_products as
+  select product_id
+  from day05_data
+  where product_id is not null;
+
+select count(distinct product_id) as part1
+from day05_products
+inner join day05_ranges
+  on product_id between range_start and range_end
+;
+
+create or replace table day05_cleaned_ranges as
+with recursive seq(step, range_id, range_start, range_end) as (
+  select 0 as step,
+    range_id,
+    range_start,
+    range_end
+  from day05_ranges
+
+  union all (
+
+  with res as (
+    select distinct
+      s1.step + 1 as step,
+      list_min([s1.range_start::long, coalesce(s2.range_start, s1.range_start)]) as range_start,
+      list_max([s1.range_end, coalesce(s2.range_end, s1.range_end)]) as range_end,
+      s2.step is not null as changed_smth
+    from seq s1
+    left join seq s2
+    on s1.range_id != s2.range_id and
+    (s1.range_start between s2.range_start and s2.range_end
+      or s1.range_end between s2.range_start and s2.range_end)
+    order by range_start
+  )
+  select
+    step,
+    row_number() over () as range_id,
+    range_start,
+    range_end
+  from res
+  where (select count(1) filter (where changed_smth is true) from res) > 0
+  and step < 20
+  group by step, range_start, range_end
+))
+select *
+from seq;
+;
+
+select *
+from day05_cleaned_ranges
+order by step, range_start;
+
+select sum(range_end - range_start) as part2
+from day05_cleaned_ranges
+where step = (select max(step) from day05_cleaned_ranges);
+