1 files changed, 26 insertions, 0 deletions
diff --git a/2020/06/solve.js b/2020/06/solve.js
new file mode 100644
index 0000000..e82242a
--- /dev/null
+++ b/2020/06/solve.js
@@ -0,0 +1,26 @@
+const fs = require("fs");
+const data = fs.readFileSync("input", "utf8");
+
+function part_one()
+{
+    return data.split("\n\n").map(e => [...new Set(e.replace(/\n/g, ''))].join('').length).reduce((a, b) => a + b);
+}
+
+function part_two()
+{
+    let res = 0;
+
+    data.split("\n\n").forEach(elem => {
+        const line = elem.replace(/\n/g, '');
+        const chars = line.split('');
+        const cnt = elem.split('\n').length;
+        for (const c of new Set(line))
+            if (chars.filter(x => x == c).length == cnt)
+                res++;
+    });
+
+    return res;
+}
+
+console.log(part_one());
+console.log(part_two());