Compilare: main.cpp: In function 'void testcase()': main.cpp:55:13: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 55 | for(auto &[a, b] : pts) cin >> a >> b; | ^ main.cpp:65:12: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 65 | for(auto [w, x, y] : edg) { | ^ main.cpp:73:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 73 | for(auto [a, b] : tree) freq[a]++, freq[b]++; | ^ main.cpp:76:12: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 76 | auto [a, b] = tree.back(); | ^