Duplicate Integers

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Given $N$ non-negative integers, check if there is any duplicate value present. ## Function Declaration ### Function Name $hasDuplicate$ – This function checks whether the given array contains any duplicate elements. ### Parameters * $nums$ : An integer array containing $N$ elements. ### Return Value * Returns $true$ if at least one duplicate element exists in the array. * Returns $false$

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solution.cppC++17

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