From afd661e85e27c55de486d9efda0e140d634b9ef1 Mon Sep 17 00:00:00 2001 From: Ankur Sundara Date: Sat, 11 Mar 2017 00:11:38 -0600 Subject: [PATCH] Update description.md --- library/description.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/library/description.md b/library/description.md index 1bab618..8d975aa 100644 --- a/library/description.md +++ b/library/description.md @@ -2,10 +2,10 @@ Your librarian has a 2-row bookshelf that can contain N books in each row. She w Input: the integer, N (1<=N<=2^1024) -Output: the number of ways you can place red-colored books and blue-colored books onto the bookshelf. Since this number might be really big, output it mod 10^9+7. +Output: the number of ways you can place red-colored books and blue-colored books onto a N-column bookshelf. Since this number might be really big, output it mod 10^9+7. Example: -Input: 3 +Input: 2 Your valid bookshelf layouts are: ```