Compilare: user.cpp: In function ‘int main()’: user.cpp:22:33: warning: unused variable ‘x’ [-Wunused-variable] int n, v, n2, i, j, k=0, p, x, y, z, m1, m2, nr=0, prime=0; ^ user.cpp:22:36: warning: unused variable ‘y’ [-Wunused-variable] int n, v, n2, i, j, k=0, p, x, y, z, m1, m2, nr=0, prime=0; ^ user.cpp:22:56: warning: unused variable ‘prime’ [-Wunused-variable] int n, v, n2, i, j, k=0, p, x, y, z, m1, m2, nr=0, prime=0; ^