85차 3번 문제풀이

Author: sangminlee98

live8/test85/문제3/이상민.js

@@ -0,0 +1,15 @@
+function solution(clothes) {
+  let answer = 1;
+  const map = new Map();
+  for (const cloth of clothes) {
+    const [name, type] = cloth;
+    if (!map.has(type)) map.set(type, 1);
+    else map.set(type, map.get(type) + 1);
+  }
+
+  for (const key of map.keys()) {
+    answer *= map.get(key) + 1;
+  }
+
+  return answer - 1;
+}