Compilare: main.cpp: In function 'int combine(std::vector<std::pair<int, int> >, std::vector<std::pair<int, int> >)': main.cpp:39:16: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 39 | if(b.size()==minim) | ~~~~~~~~^~~~~~~ main.cpp: In function 'void dfs(int, int)': main.cpp:141:41: warning: right operand of comma operator has no effect [-Wunused-value] 141 | st=0,dr=(int)h2.size()-1,mij,p=-1; | ^