day 3 part 1

.gitignore

@@ -6,3 +6,6 @@ obj/
 .vscode/
 *.sln
 *.csproj
+*.so
+workingFile.txt
+database.db

2024/day3/run.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+rm database.db
+cp input.txt workingFile.txt
+sqlite3 < solution.sql

2024/day3/solution.sql

@@ -0,0 +1,12 @@
+.open database.db
+.load ./sqlean
+
+CREATE TABLE IF NOT EXISTS RESULTS (result number);
+INSERT INTO results SELECT sum(regexp_capture(readfile('workingFile.txt'), 'mul\(([0-9]+),([0-9]+)\)', 1) * regexp_capture(readfile('workingFile.txt'), 'mul\(([0-9]+),([0-9]+)\)', 2));
+
+SELECT fileio_write('workingFile.txt', text_replace(readfile('workingFile.txt'), regexp_substr(readfile('workingFile.txt'), 'mul\(([0-9]+),([0-9]+)\)'), ''));
+
+SELECT 'answer (when 0 shows above):';
+SELECT sum(result) FROM results;
+
+.shell sqlite3 < solution.sql