Compilare: main.cpp: In function 'void Fa1(int)': main.cpp:16:15: warning: unused variable 'sol2' [-Wunused-variable] int sol1, sol2; ^~~~ main.cpp: In function 'void Fa2(int)': main.cpp:34:9: warning: unused variable 'sol1' [-Wunused-variable] int sol1, sol2; ^~~~ main.cpp: In function 'void Fa1(int)': main.cpp:29:17: warning: 'sol1' may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<sol1<<'\n'; ^~~~ main.cpp: In function 'void Fa2(int)': main.cpp:49:17: warning: 'sol2' may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<sol2<<'\n'; ^~~~