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| long dp1 = k * k; // dp(2) | ||
| long dp2 = k; // dp(1) |
| long dp1 = k * k; // dp(2) | ||
| long dp2 = k; // dp(1) | ||
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| return (int)(result[0][0] * dp1 + result[0][1] * dp2); |
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全体 int でいいのではないでしょうか。意味が分かっているならばともかく「とりあえず long」みたいなのはあまり好まれないでしょう。
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お手本を写経しながら練習していたため深く考えずこうなっておりました。以後気をつけます。
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問題
https://leetcode.com/problems/paint-fence/description/
Question:
You are painting a fence of n posts with k different colors. You must paint the posts following these rules:
Every post must be painted exactly one color.
There cannot be three or more consecutive posts with the same color.
Given the two integers n and k, return the number of ways you can paint the fence.
言語
Java
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