Initial commit: Days 1 - 5

day03.sql

@@ -0,0 +1,60 @@
+with recursive banks as (
+    select unnest(split(content, e'\n')) as bank from read_text('data/03.in')
+),
+
+banks_1 as (
+    select
+        (select arg_max(i, bank[i]) from range(1, len(bank)) r (i)) as i1,
+        bank
+    from banks
+),
+
+banks_2 as (
+    select
+        i1,
+        (select arg_max(i, bank[i]) from range(i1 + 1, len(bank) + 1) r (i))
+            as i2,
+        bank
+    from banks_1
+),
+
+banks_12 as (
+    select
+        12 as i,
+        bank,
+        0 as r
+    from banks
+    union all
+    select
+        i - 1,
+        bank,
+        (
+            select arg_max(j, bank[j])
+            from
+                range(
+                    r + 1,
+                    len(bank) - i + 2
+                ) m (j)
+        )
+    from banks_12
+    where i > 0
+),
+
+part1 as (
+    select
+        sum(
+            cast(bank[i1] as int64) * 10
+            + cast(bank[i2] as int64)
+        ) as solution
+    from banks_2
+),
+
+part2 as (
+    select sum(cast(10 ^ i as int64) * cast(bank[r] as int64)) as solution
+    from banks_12
+    where i < 12
+)
+
+select
+    (select solution from part1) as p1,
+    (select solution from part2) as p2;