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注意，输出的是数在列表中的索引，所以组织字典时用这个结构 {list_value:list_index} def two_sum(nums, target): num_dict = {} for i, num in enumerate(nums): complement = target - num 阅读全文
posted @ 2023-08-12 10:26
武平宁
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python def find_max(lst): if not lst: return "Empty list" max_val = lst[0] for num in lst: if num > max_val: max_val = num return max_val shell #!/bin 阅读全文
posted @ 2023-08-12 10:03
武平宁
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斐波那契数列 python def fibonacci(n): if n <= 0: return "Invalid input" elif n == 1: return 0 elif n == 2: return 1 else: prev_1 = 0 prev_2 = 1 for _ in ran 阅读全文
posted @ 2023-08-12 09:59
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string reserval python def reverse_string(s): return s[::-1] print(reverse_string("Hello, World!")) # Output: "!dlroW ,olleH" print(reverse_string("Py 阅读全文
posted @ 2023-08-12 09:38
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