Merge pull request codeisneverodd#110 from cg10036/12929

Level4 - 올바른 괄호의 갯수

Author: codeisneverodd

level-4/올바른-괄호의-갯수&12929&.js

@@ -0,0 +1,7 @@
+//https://github.com/codeisneverodd/programmers-coding-test
+//완벽한 정답이 아닙니다.
+//정답 1 - cg10036
+function solution(n) {
+    const fact = n => n ? BigInt(n) * fact(n - 1) : 1n;
+    return fact(n * 2) / (fact(n) * fact(n + 1));
+}