Compilare: main.cpp: In function 'bool check(int)': main.cpp:211:8: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 211 | auto [level, nod] = *patr.rbegin(); | ^ main.cpp:220:8: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 220 | auto [k, dl] = dsu::join(nod, p[nod]); | ^ main.cpp:234:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 234 | for(int i = 1; i < V0.size(); ++i) { | ~~^~~~~~~~~~~ main.cpp:244:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 244 | for(int i = 1; i < Comp.size(); ++i) | ~~^~~~~~~~~~~~~