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Yudong Jin
d7b2277d2b
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25 lines
550 B
JavaScript
25 lines
550 B
JavaScript
/**
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* File: climbing_stairs_dfs.js
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* Created Time: 2023-07-26
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* Author: yuan0221 (yl1452491917@gmail.com)
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*/
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/* 検索 */
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function dfs(i) {
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// dp[1] と dp[2] は既知なので返す
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if (i === 1 || i === 2) return i;
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// dp[i] = dp[i-1] + dp[i-2]
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const count = dfs(i - 1) + dfs(i - 2);
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return count;
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}
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/* 階段登り：探索 */
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function climbingStairsDFS(n) {
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return dfs(n);
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}
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/* Driver Code */
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const n = 9;
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const res = climbingStairsDFS(n);
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console.log(`${n} 階の階段を上る方法は全部で ${res} 通り`);
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