From 703c3eb6fb8d294510504672afa1ad95a38add50 Mon Sep 17 00:00:00 2001
From: yoshimasataira <aiztzaulryri@yahoo.co.jp>
Date: Wed, 15 Sep 2021 13:40:43 +0000
Subject: [PATCH] =?UTF-8?q?trib=E9=96=A2=E6=95=B0=E3=81=AE=E5=AE=9F?=
 =?UTF-8?q?=E8=A3=85?=
MIME-Version: 1.0
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---
 app.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/app.js b/app.js
index bba68419..ad671cd9 100644
--- a/app.js
+++ b/app.js
@@ -1,12 +1,13 @@
 'use strict';
 const memo = new Map();
 memo.set(0, 0);
-memo.set(1, 1);
+memo.set(1, 0);
+memo.set(2, 1);
 function trib(n) {
     if (memo.has(n)) {
         return memo.get(n);
     }
-    const value = trib(n - 1) + trib(n - 2);
+    const value = trib(n - 1) + trib(n - 2) + trib(n - 3);
     memo.set(n, value);
     return value;
 }