Compilare: main.cpp: In function 'int main()': main.cpp:35:19: warning: 'r2' may be used uninitialized [-Wmaybe-uninitialized] 35 | out<<r1<<" "<<r2; | ^~ main.cpp:21:23: note: 'r2' was declared here 21 | int a1, a2=2, r1, r2; | ^~ main.cpp:35:14: warning: 'r1' may be used uninitialized [-Wmaybe-uninitialized] 35 | out<<r1<<" "<<r2; | ^~~ main.cpp:21:19: note: 'r1' was declared here 21 | int a1, a2=2, r1, r2; | ^~