1 files changed, 33 insertions, 0 deletions
diff --git a/day23/day23-1.js b/day23/day23-1.js
new file mode 100644
index 0000000..8427cb4
--- /dev/null
+++ b/day23/day23-1.js
@@ -0,0 +1,33 @@
+const data = require('./data')
+let cups = data.split('').map(n => parseInt(n))
+let current = cups[0]
+
+const move = () => {
+  const i = cups.indexOf(current)
+  const picked = cups.slice(i+1,i+4)
+  const rest = [...cups.slice(0, i+1), ...cups.slice(i+4)]
+  const dest = (nr) => {
+    if (picked.includes(nr)) {
+      return dest(nr-1)
+    } else if (nr < Math.min(...rest)) {
+      return dest(Math.max(...cups))
+    }
+    return nr
+  }
+
+  rest.splice(rest.indexOf(dest(current-1)) + 1, 0, ...picked)
+  const rest1 = rest.slice(0, rest.indexOf(current))
+  const rest2 = rest.slice(rest.indexOf(current))
+  cups = [...rest2, ...rest1]
+  current = cups[cups.indexOf(current)+1]
+}
+
+for(let j=1; j<=100; j++) {
+  move()
+}
+
+const cups1 = cups.slice(0, cups.indexOf(1))
+const cups2 = cups.slice(cups.indexOf(1))
+cups = [...cups2, ...cups1]
+
+console.log('Answer: ', cups.slice(1).join(''))