group-anagrams 풀이 추가

junzero741 · junzero741 · commit 007f3261b796 · 2026-03-31T10:48:49.000+09:00
diff --git a/group-anagrams/junzero741.ts b/group-anagrams/junzero741.ts
@@ -0,0 +1,19 @@
+// TC: O(N*KlogK)
+// SC: O(N*K)
+function groupAnagrams(strs: string[]): string[][] {
+
+    const idMap = new Map<string, string[]>();
+
+    for(const str of strs) {
+        const id = str.split("").sort().join("");
+
+        if(!idMap.has(id)) {
+            idMap.set(id, [])
+        }
+
+        idMap.get(id)!.push(str)
+    }
+
+    return [...idMap.values()]
+
+};
