Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:23:12: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 23 | for(auto [x, w] : g[node]) { | ^ main.cpp:31:13: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 31 | for(auto &[add, x] : v) { | ^ main.cpp:38:13: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 38 | for(auto &[x, add] : v) { | ^ main.cpp: In function 'int main()': main.cpp:57:18: warning: unused variable 'x' [-Wunused-variable] 57 | for(int i = 1, x; i < n; i++) | ^