Compilare: user.cpp: In function ‘var rez()’: user.cpp:56:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(var i=l+1; i<V.size(); i++) { ^ user.cpp: In function ‘int main()’: user.cpp:92:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(var j=1; j<B[i].size(); j++) { ^ user.cpp:106:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(var j=1; j<B[i].size(); j++) { ^ user.cpp:107:21: warning: unused variable ‘b’ [-Wunused-variable] var b = -1; ^ user.cpp:103:13: warning: unused variable ‘best’ [-Wunused-variable] var best = -1; ^