Compilare: user.cpp: In function ‘int main()’: user.cpp:16:36: warning: spurious trailing ‘%’ in format [-Wformat=] fscanf( fin , "%d%", &v[i] ); ^ user.cpp:13:39: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin , "%d%lld", &n, &sum ); ^ user.cpp:16:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin , "%d%", &v[i] ); ^