Compilare: user.cpp: In function ‘int main()’: user.cpp:42:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<ans.size(); i++) out<<ans[i]; ^ user.cpp:48:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<inc.size(); i++) out<<inc[i]<<" "; ^ user.cpp:33:13: warning: ‘par’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(nr1%2!=par) inc.push_back(len); ^