Compilare: main.cpp: In function 'int bin1(int)': main.cpp:34:18: warning: unused variable 'last' [-Wunused-variable] int st,dr,mj,last=-1; ^~~~ main.cpp: In function 'int bin2(int)': main.cpp:50:18: warning: unused variable 'last' [-Wunused-variable] int st,dr,mj,last=-1; ^~~~ main.cpp: In function 'int main()': main.cpp:67:11: warning: unused variable 'j' [-Wunused-variable] int i,j; ^ main.cpp: In function 'int bin1(int)': main.cpp:45:12: warning: 'mj' may be used uninitialized in this function [-Wmaybe-uninitialized] return mj; ^~ main.cpp: In function 'int bin2(int)': main.cpp:61:9: warning: 'mj' may be used uninitialized in this function [-Wmaybe-uninitialized] mj++; ^ main.cpp: In function 'int main()': main.cpp:61:9: warning: 'mj' may be used uninitialized in this function [-Wmaybe-uninitialized] mj++; ^ main.cpp:50:15: note: 'mj' was declared here int st,dr,mj,last=-1; ^~ main.cpp:81:27: warning: 'mj' may be used uninitialized in this function [-Wmaybe-uninitialized] out<<bin1(b)<<'\n'; ^~~~