feat: add day5 6 7

solutions/06.sql

@@ -0,0 +1,78 @@
+create or replace table day06_data as
+    select row_number() over () as line, column0
+  from read_csv('inputs/06/input.txt', header=false, delim='\n');
+create or replace table day06_test as
+    select row_number() over () as line, column0
+  from read_csv('inputs/06/test.txt', header=false, delim='\n');
+
+
+create or replace table day06_input as
+  with raw as (
+    select line as y,
+    array_filter(split(column0, ' '), lambda x: x != '') as s
+    from day06_data
+  ), splitted as (
+    select x, y, elem
+    from raw,
+    unnest(s) with ordinality as u(elem, x)
+  ), rotated as (
+     select array_agg(elem order by y) as rot
+     from splitted
+     group by x
+  )
+  select rot[-1] as op, list_apply(rot[:-2], lambda x: x::int) as num
+  from rotated;
+
+select sum(
+  case when op = '+' then list_sum(num)
+       when op = '*' then list_product(num)
+       else 0
+  end
+)::long as part1
+from day06_input;
+
+create or replace table day06_input2 as
+  with rotated as (
+    select
+      x,
+      array_agg(elem order by line) rot
+    from day06_data,
+      unnest(split(column0, '')) with ordinality as u(elem, x)
+    group by x
+    order by x
+  ), cleaned as (
+    select
+      x,
+      any_value(rot[-1]) as op,
+      reverse(string_agg(n, '')) as num
+    from rotated, unnest(array_filter(rot[:-2], lambda x: x != ' ')) as u(n)
+    group by x
+  ), with_breaks as (
+    select
+      x, op, num::int as num,
+      case when lag(x) over (order by x) = x - 1 then 0 else 1 end as is_break
+    from cleaned
+  ), with_groups as (
+    select
+      x, op, num,
+      sum(is_break) over (order by x rows unbounded preceding) as group_id
+    from with_breaks
+  ), grouped as (
+    select
+      group_id,
+      max(op) as op,
+      array_agg(num) as nums
+    from with_groups
+    group by group_id
+  )
+  select *
+  from grouped;
+
+select sum(
+  case when op = '+' then list_sum(nums)
+       when op = '*' then list_product(nums)
+       else 0
+  end
+)::long as part2
+from day06_input2;
+