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###原题目```cppMerge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lis 阅读全文
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###原题目```cppGiven a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. An input string is 阅读全文
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###原题目```cppWrite a function to find the longest common prefix string amongst an array of strings. If there is no common prefix, return an empty strin 阅读全文
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###原题目将I V C M 诸如此类的罗马数字输入后，转换成数字输出。```cppExampleSymbol ValueI 1V 5X 10L 50C 100D 500M 1000 Example 1: Input: "III"Output: 3Example 2: Input: "IV"Outp 阅读全文
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####原题目Given an array of integers, return indices of the two numbers such that they add up to a specific target.You may assume that each input would h 阅读全文