Compilare: main.cpp: In function 'int binary_1(int*, int, int, int)': main.cpp:24:9: warning: unused variable 'x' [-Wunused-variable] int x=-1; ^ main.cpp: In function 'int binary_2(int*, int, int, int)': main.cpp:37:9: warning: unused variable 'x' [-Wunused-variable] int x=-1; ^ main.cpp: In function 'int binary_1(int*, int, int, int)': main.cpp:34:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'int binary_2(int*, int, int, int)': main.cpp:47:1: warning: control reaches end of non-void function [-Wreturn-type] } ^