Compilare: user.cpp: In function ‘void rezolvare()’: user.cpp:68:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < o.size(); ++i) ^ user.cpp:69:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < v.size(); ++j) ^ user.cpp:92:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < o.size(); ++i) ^ user.cpp:93:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = i + 1; j < o.size(); ++j) ^ user.cpp:96:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k = 0; k < v.size(); ++k) ^ user.cpp:112:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v.size(); ++i) ^ user.cpp:113:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = i + 1; j < v.size(); ++j) ^ user.cpp:116:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k = 0; k < o.size(); ++k) ^