solve: programmers 위장

Do-ho · Do-ho · commit dc58fe572e50 · 2021-01-06T18:52:23.000+09:00
- 조합을 통한 풀이
diff --git a/src/Do-ho/dataStructor/pgs_위장/pgs_위장.js b/src/Do-ho/dataStructor/pgs_위장/pgs_위장.js
@@ -0,0 +1,8 @@
+const solution = clothes => {
+    const clothesObject = clothes.reduce((acc, [name, kind]) => {
+        acc.hasOwnProperty(kind)? acc[kind] += 1 : acc[kind] = 1;
+        return acc;
+    }, new Object());
+    
+    return Object.values(clothesObject).reduce((acc, val) => acc *= val + 1, 1) - 1;
+}
