Compilare: main.cpp: In function 'int combine(std::vector<std::pair<int, int> >, std::vector<std::pair<int, int> >)': main.cpp:34:16: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 34 | if(b.size()==minim) | ~~~~~~~~^~~~~~~ main.cpp: In function 'std::pair<std::vector<std::pair<int, int> >, std::vector<std::pair<int, int> > > dfs(int, int)': main.cpp:138:38: warning: right operand of comma operator has no effect [-Wunused-value] 138 | st=0,dr=(int)h.size()-1,mij,aux=-1; | ^