Compilare: user.cpp: In function ‘int main()’: user.cpp:19:14: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] fin >> C + 1; ^ user.cpp:31:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i <= len - len % Car.size (); ++ i) { ^ user.cpp:34:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < Car.size (); ++ j) { ^