Compilare: main.cpp: In function 'void dfs(int)': main.cpp:18:13: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 18 | auto[y,idx]=it; | ^ main.cpp:16:16: warning: array subscript 50010 is above array bounds of 'bool [50010]' [-Warray-bounds] 16 | visited[dim]=true; | ~~~~~~~~~~~^ main.cpp:13:6: note: while referencing 'visited' 13 | bool visited[dim],used[dim]; | ^~~~~~~