Compilare: user.cpp: In function ‘int binary(int)’: user.cpp:22:16: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] return sol + 1; ^ user.cpp: In function ‘int main()’: user.cpp:22:16: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] return sol + 1; ^ user.cpp:12:7: note: ‘sol’ was declared here int sol; ^~~ user.cpp:22:16: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] return sol + 1; ^ user.cpp:12:7: note: ‘sol’ was declared here int sol; ^~~