Compilare: user.cpp: In function ‘void getAns()’: user.cpp:66:17: warning: unused variable ‘jj’ [-Wunused-variable] int jj = 0; ^ user.cpp: In function ‘int main()’: user.cpp:102:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp:105:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lf", &v[i]); ^ user.cpp:108:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lf%lf%lf", &a, &b, &rsum); ^