Compilare: user.cpp: In function ‘int get(int, int, int)’: user.cpp:26:12: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] mid = st + dr >> 1; ~~~^~~~ user.cpp: In function ‘int get2(int, int, int)’: user.cpp:37:12: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] mid = st + dr >> 1; ~~~^~~~ user.cpp: In function ‘int main()’: user.cpp:87:11: warning: unused variable ‘lun’ [-Wunused-variable] int lun = S / v[hi]; ^~~ user.cpp:102:11: warning: unused variable ‘lun’ [-Wunused-variable] int lun = S / v[hi]; ^~~