Напишите код на С++

 #include <iostream>
#include <limits>
#include <random> 
#include <vector>

using namespace std;

class Matrix { 
    size_t n; 
    vector<vector<int>> matrix; 
    friend ostream& operator<<(ostream& out, const Matrix& mx) { 
        for (const auto& row : mx.matrix) { 
            for (auto value : row) out << value << ' '; 
            out.put('\n'); 
        } 
        return out; 
    } 
public: 
    using result_t = pair<int, long long>; 
    explicit Matrix(const size_t n) 
        : n(n), matrix(n, vector<int>(n)) {} 
    void fill_random(int l, int r) { 
        if (r < l) swap(l, r); 
        uniform_int_distribution uid(l, r); 
        mt19937 gen{ random_device()() }; 
        for (auto& row : matrix) { 
            for (auto& value : row) value = uid(gen); 
        } 
    } 
    result_t tr() const { 
        auto max = numeric_limits<int>::min(); 
        auto sum = 0LL; 
        for (size_t i = 0; i < n; ++i) { 
            for (size_t j = i; j < n; ++j) { 
                if (max < matrix[i][j]) max = matrix[i][j]; 
                sum += matrix[i][j]; 
            } 
        } 
        return { max, sum }; 
    } 
    result_t bl() const { 
        auto max = numeric_limits<int>::min(); 
        auto sum = 0LL; 
        for (size_t i = 0; i < n; ++i) { 
            for (size_t j = 0; j <= i; ++j) { 
                if (max < matrix[i][j]) max = matrix[i][j]; 
                sum += matrix[i][j]; 
            } 
        } 
        return { max, sum }; 
    } 
    result_t tl() const { 
        auto max = numeric_limits<int>::min(); 
        auto sum = 0LL; 
        for (size_t i = 0; i < n; ++i) { 
            for (size_t j = 0; j < n - i; ++j) { 
                if (max < matrix[i][j]) max = matrix[i][j]; 
                sum += matrix[i][j]; 
            } 
        } 
        return { max, sum }; 
    } 
    result_t br() const { 
        auto max = numeric_limits<int>::min(); 
        auto sum = 0LL; 
        for (size_t i = 0; i < n; ++i) { 
            for (size_t j = n - 1 - i; j < n; ++j) { 
                if (max < matrix[i][j]) max = matrix[i][j]; 
                sum += matrix[i][j]; 
            } 
        } 
        return { max, sum }; 
    } 
};

void show_result(const char* prompt, const Matrix::result_t& result) { 
    const auto& [max, sum] = result; 
    cout << prompt << ". max: " << max << ", sum: " << sum << '\n'; 
}

int main() {  
    cout << "n: "; 
    size_t n; 
    cin >> n; 
    Matrix matrix(n); 
    matrix.fill_random(10, 99); 
    cout << matrix << '\n'; 
    show_result("A", matrix.tr()); 
    show_result("Б", matrix.bl()); 
    show_result("И", matrix.tl()); 
    show_result("К", matrix.br()); 
}