๐ŸŽฒ๋ฐฑ์ค€ 11727๋ฒˆ 2xnํƒ€์ผ๋ง 2

Jeongeunยท2023๋…„ 3์›” 30์ผ
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๋ฐฑ์ค€ 11727๋ฒˆ

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const fs = require('fs'); 
const input = +fs.readFileSync('/dev/stdin').toString().trim();

let dp = [1, 3];

for (let i = 2; i < input; i++) {
  dp[i] = (dp[i - 1] + 2 * dp[i - 2]) % 10007;
}

console.log(dp[input-1]);

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