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* Review the EN heading format. * Fix pythontutor headings. * Fix pythontutor headings. * bug fixes * Fix headings in **/summary.md * Revisit the CN-to-EN translation for Python code using Claude-4.5 * Revisit the CN-to-EN translation for Java code using Claude-4.5 * Revisit the CN-to-EN translation for Cpp code using Claude-4.5. * Fix the dictionary. * Fix cpp code translation for the multipart strings. * Translate Go code to English. * Update workflows to test EN code. * Add EN translation for C. * Add EN translation for CSharp. * Add EN translation for Swift. * Trigger the CI check. * Revert. * Update en/hash_map.md * Add the EN version of Dart code. * Add the EN version of Kotlin code. * Add missing code files. * Add the EN version of JavaScript code. * Add the EN version of TypeScript code. * Fix the workflows. * Add the EN version of Ruby code. * Add the EN version of Rust code. * Update the CI check for the English version code. * Update Python CI check. * Fix cmakelists for en/C code. * Fix Ruby comments
41 lines
1.0 KiB
Python
41 lines
1.0 KiB
Python
"""
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File: climbing_stairs_dp.py
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Created Time: 2023-06-30
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Author: krahets (krahets@163.com)
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"""
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def climbing_stairs_dp(n: int) -> int:
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"""Climbing stairs: Dynamic programming"""
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if n == 1 or n == 2:
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return n
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# Initialize dp table, used to store solutions to subproblems
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dp = [0] * (n + 1)
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# Initial state: preset the solution to the smallest subproblem
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dp[1], dp[2] = 1, 2
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# State transition: gradually solve larger subproblems from smaller ones
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for i in range(3, n + 1):
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dp[i] = dp[i - 1] + dp[i - 2]
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return dp[n]
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def climbing_stairs_dp_comp(n: int) -> int:
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"""Climbing stairs: Space-optimized dynamic programming"""
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if n == 1 or n == 2:
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return n
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a, b = 1, 2
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for _ in range(3, n + 1):
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a, b = b, a + b
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return b
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"""Driver Code"""
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if __name__ == "__main__":
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n = 9
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res = climbing_stairs_dp(n)
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print(f"Climbing {n} stairs has {res} solutions")
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res = climbing_stairs_dp_comp(n)
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print(f"Climbing {n} stairs has {res} solutions")
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