Compilare: main.cpp: In function 'int main()': main.cpp:22:17: warning: suggest parentheses around comparison in operand of '==' [-Wparentheses] if(x==y==cn) ~^~~ main.cpp:48:42: warning: 'b2' may be used uninitialized in this function [-Wmaybe-uninitialized] g<<a1<<" "<<a2<<'\n'<<b1<<" "<<b2; ^ main.cpp:48:35: warning: 'b1' may be used uninitialized in this function [-Wmaybe-uninitialized] g<<a1<<" "<<a2<<'\n'<<b1<<" "<<b2; ^~~ main.cpp:48:25: warning: 'a2' may be used uninitialized in this function [-Wmaybe-uninitialized] g<<a1<<" "<<a2<<'\n'<<b1<<" "<<b2; ^~~~ main.cpp:48:16: warning: 'a1' may be used uninitialized in this function [-Wmaybe-uninitialized] g<<a1<<" "<<a2<<'\n'<<b1<<" "<<b2; ^~~