Remove duplicate numbers from vector in C++

A  program to remove the duplicate numbers using vectors by the user using a C++ programming language. The program will work on C++ 11 version.

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 Program Listing

#include <iostream>

#include <algorithm>

#include <vector>

int main()

{

std::cout << "Remove duplicate numbers from vector in C++\n\n";

std::cout << "How many numbers: ";

int numberCount;

std::cin >> numberCount;

std::vector<int> numbers(numberCount);

for (int i = 0; i < numberCount; ++i) {

        std::cout << "Give value in item no " << i+1 << " : ";

std::cin >> numbers[i];

}

std::sort(numbers.begin(), numbers.end());

auto newEnd = std::unique(numbers.begin(), numbers.end());

numbers.resize(std::distance(numbers.begin(), newEnd));

std::cout <<"\n\n";

std::cout << "List of numbers that are not duplicate:\n";

for(int num : numbers) {

std::cout << num << " ";

}

}