Compilare: user.cpp: In function ‘void lee()’: user.cpp:120:20: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if (mf1[i] && mf3[i] || mf2[i] && mf3[i]) ^ user.cpp: In function ‘int main()’: user.cpp:258:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 1; i < drum.size(); ++i) ^ user.cpp:263:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < rez.size(); ++i) ^