Compilare: main.cpp: In function 'int main()': main.cpp:10:9: warning: unused variable 'x' [-Wunused-variable] 10 | int x = 1, cnt; | ^ main.cpp:29:16: warning: 'cnt' may be used uninitialized [-Wmaybe-uninitialized] 29 | out << cnt << "\n"; | ^~~~ main.cpp:10:16: note: 'cnt' was declared here 10 | int x = 1, cnt; | ^~~