[๋ฐฑ์ค-11727] 2xn ํ์ผ๋ง 2 / Python
๐ Problem Solving/Baekjoon
https://www.acmicpc.net/problem/11727
11727๋ฒ: 2×n ํ์ผ๋ง 2
2×n ์ง์ฌ๊ฐํ์ 1×2, 2×1๊ณผ 2×2 ํ์ผ๋ก ์ฑ์ฐ๋ ๋ฐฉ๋ฒ์ ์๋ฅผ ๊ตฌํ๋ ํ๋ก๊ทธ๋จ์ ์์ฑํ์์ค. ์๋ ๊ทธ๋ฆผ์ 2×17 ์ง์ฌ๊ฐํ์ ์ฑ์ด ํ๊ฐ์ง ์์ด๋ค.
www.acmicpc.net
n = int(input())
d = [0] * 1001
d[1], d[2] = 1, 3
for i in range(3, n + 1):
d[i] = d[i - 1] + (2 * d[i - 2])
print(d[n] % 10007)
ํด์ค
๋ง์ง๋ง์์ ์ด์ ๋ ๊ฐ๋ง ํ์ธํด์ฃผ๋ฉด ๋๋ค.
๋ง์ง๋ง์์ ๋ ๋ฒ์งธ๋ 2x1, 2x2๋ก ์ด๋ฃจ์ด์ง๊ธฐ ๋๋ฌธ์ 2๋ฅผ ๊ณฑํด์ค๋ค.
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