Compilare: user.cpp: In function ‘int main()’: user.cpp:93:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(var i=1; i<m.size(); i++) fout<<m[i]; ^ user.cpp:96:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(var i=1; i<m.size(); i++) fout<<m[i]; ^