Compilare: user.cpp: In function ‘int verif()’: user.cpp:15:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<m1.size();i++) ^ user.cpp:17:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<m2.size();i++) ^ user.cpp: In function ‘void brak(int)’: user.cpp:38:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<m1.size();i++) ^ user.cpp:40:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<m2.size();i++) ^