Помогите сделать задания в С++

 #include   

using namespace std; 

struct Concept { 

    char a; 

    char b; 

    size_t n; 

    size_t m; 

    size_t k; 

    size_t l; 

    Concept() = default; 

    Concept(const char a, const char b, const size_t n, const size_t m, const size_t k, const size_t l) 

        : a(a), b(b), n(n), m(m), k(k), l(l) {} 

}; 

void fill_concept(char* line, const size_t len, const Concept& cpt) { 

    size_t i = 0; 

    while (i < len) { 

        size_t j = 0; 

        while (i < len && j < cpt.n) { 

            line[i] = cpt.a; 

            ++j; 

            ++i; 

        } 

        j = 0; 

        while (i < len && j < cpt.m) { 

            line[i] = cpt.b; 

            ++j; 

            ++i; 

        } 

        j = 0; 

        while (i < len && j < cpt.k) { 

            line[i] = cpt.a; 

            ++j; 

            ++i; 

        } 

        j = 0; 

        while (i < len && j < cpt.l) { 

            line[i] = cpt.b; 

            ++j; 

            ++i; 

        } 

    } 

} 

void outline(char* line, const size_t len, const size_t pos) { 

    static const size_t lim = 2; 

    Concept cpt; 

    switch (pos % lim) { 

    case 0: cpt = { 'x', ' ', 1, 2, 1, 2 }; break; 

    default: cpt = { ' ', 'x', 1, 1, 1, 2 }; break; 

    } 

    fill_concept(line, len, cpt); 

} 

int main() { 

    const size_t n = 10; 

    char matrix[n][n]{}; 

    for (size_t i = 0; i < n; ++i) outline(matrix[i], n, i); 

    for (const auto& row : matrix) { 

        for (auto x : row) cout.put(x); 

        puts(""); 

    } 

}