hyunkookim 님의 블로그

문제790. Domino and Tromino Tiling You have two types of tiles: a 2 x 1 domino shape and a tromino shape. You may rotate these shapes.Given an integer n, return the number of ways to tile an 2 x n board. Since the answer may be very large, return it modulo 109 + 7.In a tiling, every square must be covered by a tile. Two tilings are different if and only if there are two 4-directionally adjacent ce..

문제198. House Robber You are a professional robber planning to rob houses along a street. Each house has a certain amount of money stashed, the only constraint stopping you from robbing each of them is that adjacent houses have security systems connected and it will automatically contact the police if two adjacent houses were broken into on the same night.Given an integer array nums representing ..