102차 1번 문제풀이

Author: Eric

live10/test102/문제1/황장현.js

@@ -0,0 +1,20 @@
+const input = +require('fs')
+  .readFileSync(process.platform === 'linux' ? '/dev/stdin' : './input.txt')
+  .toString()
+  .trim();
+
+function solution(input) {
+  const n = input;
+  const dp = Array(n + 1).fill(0);
+
+  dp[1] = 1;
+  dp[2] = 3;
+
+  for (let i = 3; i <= n; i++) {
+    dp[i] = (dp[i - 1] + 2 * dp[i - 2]) % 10007;
+  }
+
+  return dp[n];
+}
+
+console.log(solution(input));