Compilare: user.cpp: In function ‘int main()’: user.cpp:27:21: warning: unused variable ‘j’ [-Wunused-variable] int n, v[1000], i, j, max = 0, a, k = 999,r; ^ user.cpp:27:24: warning: unused variable ‘max’ [-Wunused-variable] int n, v[1000], i, j, max = 0, a, k = 999,r; ^~~ user.cpp:27:33: warning: unused variable ‘a’ [-Wunused-variable] int n, v[1000], i, j, max = 0, a, k = 999,r; ^