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#include <iostream>
#include <vector>
#include <algorithm>
#include <numeric>
#include <functional>
#include <iterator>

int main() {
    std::vector<int> nums = {5, 3, 8, 1, 9, 2, 7, 4, 6};

// Sorting
    std::sort(nums.begin(), nums.end());
    std::cout << "sorted:   ";
    std::copy(nums.begin(), nums.end(),
              std::ostream_iterator<int>(std::cout, " "));
    std::cout << "
";

// Binary search on sorted range
    std::cout << "has 7: "
              << std::binary_search(nums.begin(), nums.end(), 7) << "
";

// Partition: evens first
    std::vector<int> v2 = {1,2,3,4,5,6,7,8};
    auto mid = std::partition(v2.begin(), v2.end(),
                              [](int n){ return n % 2 == 0; });
    std::cout << "evens: ";
    for (auto it = v2.begin(); it != mid; ++it)
        std::cout << *it << " ";
    std::cout << "
";

// Transform: square each element
    std::vector<int> squares(nums.size());
    std::transform(nums.begin(), nums.end(), squares.begin(),
                   [](int n){ return n * n; });
    std::cout << "squares: ";
    for (int x : squares) std::cout << x << " ";
    std::cout << "
";

// Numeric accumulate
    int total = std::accumulate(nums.begin(), nums.end(), 0);
    std::cout << "sum = " << total << "
";

// Min/max element
    auto [lo, hi] = std::minmax_element(nums.begin(), nums.end());
    std::cout << "min=" << *lo << " max=" << *hi << "
";

return 0;
}