Compilare: main.cpp: In function 'std::vector<std::vector<std::pair<int, int> > > apm_prim(std::vector<std::vector<std::pair<int, int> > >&)': main.cpp:21:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | for(int j=0;j<graf[nod_curent].size();j++){ | ~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int bfs_cost_max(std::vector<std::vector<std::pair<int, int> > >&, int, int)': main.cpp:58:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | for(int i=0;i<apm[n].size();i++){ | ~^~~~~~~~~~~~~~ main.cpp: In function 'void afisare(std::vector<std::vector<std::pair<int, int> > >&)': main.cpp:74:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 74 | for(int j=0;j<graf[i].size();j++){ | ~^~~~~~~~~~~~~~~ main.cpp: In function 'std::vector<std::vector<std::pair<int, int> > > apm_prim(std::vector<std::vector<std::pair<int, int> > >&)': main.cpp:43:20: warning: 'min_nod' may be used uninitialized [-Wmaybe-uninitialized] 43 | apm[min_nod].push_back({min_dist,nod_curent}); | ^ main.cpp:20:13: note: 'min_nod' was declared here 20 | int min_nod, min_dist =INF; | ^~~~~~~