Напиши код на c++ несложно пожалуйста

 #include <iomanip> 
#include <iostream> 
#include <random> 
#include <vector> 
 
using namespace std; 
using value_t = int; 
using row_t = vector<value_t>; 
using matrix_t = vector<row_t>; 
 
class TargetElement { 
public: 
    explicit TargetElement(const matrix_t& matrix) : matrix(matrix) {} 
    TargetElement& target(const size_t i, const size_t j) { 
        r = i; 
        c = j; 
        return *this; 
    } 
    size_t rows() const { return matrix.size(); } 
    size_t columns() const { return matrix[0].size(); } 
    void show(const streamsize w) const { 
        cout.put('\n'); 
        for (const auto& row : matrix) { 
            for (auto value : row) cout << setw(w) << value; 
            cout.put('\n'); 
        } 
        cout << '\n' << *this << '\n'; 
    } 
private: 
    size_t r = 0; 
    size_t c = 0; 
    matrix_t matrix; 
    value_t sum() const { 
        const auto top = r != 0 ? matrix[r - 1][c] : 0; 
        const auto left = c != 0 ? matrix[r][c - 1] : 0; 
        const auto bottom = r != matrix.size() - 1 ? matrix[r + 1][c] : 0; 
        const auto right = c != matrix[0].size() - 1 ? matrix[r][c + 1] : 0; 
        return top + left + bottom + right; 
    } 
    friend bool operator<(const TargetElement& a, const TargetElement& b) { 
        return a.sum() < b.sum(); 
    } 
    friend ostream& operator<<(ostream& out, const TargetElement& pos) { 
        out << pos.matrix[pos.r][pos.c] 
            << ' ' << pos.r + 1 << ' ' << pos.c + 1 
            << ' ' << pos.sum(); 
        return out; 
    } 
}; 
 
TargetElement task(const matrix_t& matrix) { 
    TargetElement te(matrix); 
    const auto rows = te.rows(); 
    const auto columns = te.columns(); 
    TargetElement max = te.target(0, 0); 
    for (size_t i = 0; i < rows; ++i) 
        for (size_t j = 0; j < columns; ++j) 
            if (max < te.target(i, j)) 
                max = te; 
    return max; 
} 
 
size_t set_size(const char* prompt, const size_t limit) { 
    size_t value = 0; 
    while (!value || limit < value) { 
        cout << prompt; 
        cin >> value; 
        cin.ignore(0x1000, '\n'); 
    } 
    return value; 
} 
 
void fill_random(matrix_t& matrix, value_t l, value_t 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); 
} 
 
int main() { 
    const auto m = set_size("m: ", 10); 
    const auto n = set_size("n: ", 12); 
    matrix_t matrix(m, row_t(n)); 
    fill_random(matrix, -9, 9); 
    task(matrix).show(5); 
}