Compilare: main.cpp: In function 'int cbin(int, int)': main.cpp:27:9: warning: unused variable 'v_mid' [-Wunused-variable] 27 | int v_mid=sum(mid); | ^~~~~ main.cpp: In function 'int main()': main.cpp:47:9: warning: unused variable 'v_mid' [-Wunused-variable] 47 | int v_mid=sum(mid); | ^~~~~ main.cpp:41:6: warning: unused variable 'mid' [-Wunused-variable] 41 | int mid=(st+dr)/2; | ^~~ main.cpp: In function 'int cbin(int, int)': main.cpp:31:1: warning: control reaches end of non-void function [-Wreturn-type] 31 | } | ^