evil part1

1 files changed, 28 insertions, 0 deletions

diff --git a/2023/19/solve.js b/2023/19/solve.js
new file mode 100644
index 0000000..4a50178
--- /dev/null
+++ b/2023/19/solve.js
@@ -0,0 +1,28 @@
+const fs = require("fs");
+let [workflows, parts] = fs.readFileSync("input", "utf8").trim().split("\n\n");
+workflows = workflows.split("\n").map((l) => [l.split("{")[0], l .split("{")[1] .slice(0, -1).split(",").map((w) => w.split(":"))]);
+parts = parts.split("\n").map((l) => l.slice(1, -1));
+
+const findWorkflow = (name) => workflows.filter(([n, _]) => name == n)[0][1];
+
+let part1 = 0;
+for (const part of parts) {
+  eval(part);
+  let workflow = "in";
+  while (workflow != "A" && workflow != "R") {
+    const rules = findWorkflow(workflow);
+    for (const rule of rules) {
+      if (rule.length == 1) {
+        workflow = rule[0];
+        break;
+      } else if (eval(rule[0]) == true) {
+        workflow = rule[1];
+        break;
+      }
+    }
+  }
+  if (workflow == "A") part1 += x + m + a + s;
+}
+console.log(part1);
+
+let part2 = 0