75차 3번 문제풀이

Author: Eric

live7/test75/문제3/황장현.js

@@ -0,0 +1,24 @@
+function solution(s) {
+  const temp = s
+    .slice(2, -2)
+    .split('},{')
+    .map((s) => s.split(',').map(Number));
+
+  temp.sort((a, b) => a.length - b.length);
+
+  const result = [];
+  const seen = new Set();
+
+  for (const arr of temp) {
+    for (const num of arr) {
+      if (!seen.has(num)) {
+        result.push(num);
+        seen.add(num);
+      }
+    }
+  }
+
+  return result;
+}
+
+console.log(solution('{{2},{2,1},{2,1,3},{2,1,3,4}}'));