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25 lines
525 B
JavaScript
25 lines
525 B
JavaScript
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/**
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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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/* 搜尋 */
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function dfs(i) {
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// 已知 dp[1] 和 dp[2] ，返回之
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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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/* 爬樓梯：搜尋 */
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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(`爬 ${n} 階樓梯共有 ${res} 種方案`);
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