Compilare: user.c: In function ‘main’: user.c:93:15: warning: variable ‘cp’ set but not used [-Wunused-but-set-variable] int i, j, cp, ans, ri; ^ user.c:98:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &n); ^ user.c:100:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &v[i]); ^