Longest Common Prefix

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Write a program to find the longest common prefix string amongst an array of strings. If there is no common prefix, print an empty string $""$. Example 1: Input: ``` 1 flower flow flight ``` Output: ``` "fl" ``` Example 2: Input: ``` 1 dog racecar car ``` Output: ``` "" ``` ### Input - The first line of input will contain a single integer $T$, denoting the number of test cases. - Each test c

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solution.cppC++17

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