Compilare: main.cpp: In function 'void testcase()': main.cpp:57:13: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 57 | for(auto &[a, b] : pts) cin >> a >> b; | ^ main.cpp:67:12: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 67 | for(auto [w, x, y] : edg) { | ^ main.cpp:75:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 75 | for(auto [a, b] : tree) freq[a]++, freq[b]++; | ^ main.cpp:81:7: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 81 | auto [a, b] = tree[i]; | ^ main.cpp:88:12: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 88 | auto [a, b] = tree.back(); | ^