Compilare: main.cpp: In function 'int main()': main.cpp:13:11: warning: unused variable 'x' [-Wunused-variable] 13 | int n,x,y; | ^ main.cpp:13:13: warning: unused variable 'y' [-Wunused-variable] 13 | int n,x,y; | ^ main.cpp:43:25: warning: 'nextNode' may be used uninitialized [-Wmaybe-uninitialized] 43 | visited[nextNode]=1; | ^ main.cpp:15:9: note: 'nextNode' was declared here 15 | int nextNode; | ^~~~~~~~