Compilare: user.cpp: In function ‘int main()’: user.cpp:118:7: warning: unused variable ‘low’ [-Wunused-variable] int low, high, mid; ^ user.cpp:118:12: warning: unused variable ‘high’ [-Wunused-variable] int low, high, mid; ^ user.cpp:118:18: warning: unused variable ‘mid’ [-Wunused-variable] int low, high, mid; ^ user.cpp:99:18: warning: unused variable ‘j’ [-Wunused-variable] int n, I, T, i, j,z,k; ^ user.cpp:99:20: warning: unused variable ‘z’ [-Wunused-variable] int n, I, T, i, j,z,k; ^