Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:53:25: error: ‘strlen’ was not declared in this scope int Lg = strlen(Number); ^ user.cpp:67:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (size_t k = 0; k < R; ++k) // Trecem prin toti termenii care raman la impartirea cu 20 ~~^~~