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Add ru version (#1865)
* Add Russian docs site baseline * Add Russian localized codebase * Polish Russian code wording * Update ru code translation. * Update code translation and chapter covers. * Fix pythontutor extraction. * Add README and landing page. * placeholder of profiles * Use figures of English version * Remove chapter paperbook
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=begin
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File: climbing_stairs_dfs.rb
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Created Time: 2024-05-29
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Author: Xuan Khoa Tu Nguyen (ngxktuzkai2000@gmail.com)
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=end
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# ## Поиск ###
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def dfs(i)
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# dp[1] и dp[2] уже известны, вернуть их
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return i if i == 1 || i == 2
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# dp[i] = dp[i-1] + dp[i-2]
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dfs(i - 1) + dfs(i - 2)
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end
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# ## Подъем по лестнице: поиск ###
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def climbing_stairs_dfs(n)
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dfs(n)
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end
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### Driver Code ###
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if __FILE__ == $0
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n = 9
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res = climbing_stairs_dfs(n)
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puts "Количество способов подняться по лестнице из #{n} ступеней: #{res}"
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end
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