Compilare: main.cpp: In function 'int solve(int)': main.cpp:88:9: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 88 | auto [uc, v, w] = E[it]; | ^ main.cpp:95:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::tuple<int, int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 95 | for(int i = 0; i < E.size(); ++i) { | ~~^~~~~~~~~~ main.cpp:97:8: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 97 | auto [u, v, w] = E[i]; | ^ main.cpp:102:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::tuple<int, int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 102 | for(int i = 0; i < E.size(); ++i) U[i] = 0; | ~~^~~~~~~~~~