random numbers, C++ (vc++)

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//Microsoft (R) C/C++ Optimizing Compiler Version 19.00.23506 for x64

#include <iostream>
#include <numeric>
#include <iterator>
#include <random>
#include <algorithm>

int main()
{
    int rand_array[35] {} ;

// **** generate 35 unique random numbers between 0 and 199
    // sorted in ascending order, and place them into rand_array ****

{
        // 1. create an array holding values in [0 .. 199]
        int temp[200] {} ;
        // https://en.cppreference.com/w/cpp/algorithm/iota
        // https://en.cppreference.com/w/cpp/iterator/begin
        std::iota( std::begin(temp), std::end(temp), 0 ) ;

// 2. shuffle the array randomly
        // https://en.cppreference.com/w/cpp/algorithm/random_shuffle
        // https://en.cppreference.com/w/cpp/numeric/random
        std::shuffle( std::begin(temp), std::end(temp),
                      std::mt19937( std::random_device{}() ) ) ;

// 3. copy the first 35 elements into rand_array
        // http://www.stroustrup.com/C++11FAQ.html#static_assert
        // https://en.cppreference.com/w/cpp/iterator/size
        static_assert( std::size(rand_array) <= std::size(temp), "invalid array size" ) ; // sanity check
        // https://en.cppreference.com/w/cpp/algorithm/copy
        std::copy( std::begin(temp), std::begin(temp)+std::size(rand_array),
                   std::begin(rand_array) ) ;

}
    // 4. print the array of random numbers
    // http://www.stroustrup.com/C++11FAQ.html#for
    for( int r : rand_array ) std::cout << r << ' ' ;
    std::cout << '\n' ;

// 5. sort the array of random numbers in ascending order
    // https://en.cppreference.com/w/cpp/algorithm/sort
    std::sort( std::begin(rand_array), std::end(rand_array) ) ;

// 6. print the array of random numbers in ascending order
    for( int r : rand_array ) std::cout << r << ' ' ;
    std::cout << '\n' ;
}

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Compilation time: 1,96 sec, absolute running time: 0,33 sec, absolute service time: 2,31 sec