Compilare: user.cpp: In function ‘int main()’: user.cpp:16: warning: format ‘%Lf’ expects type ‘long double*’, but argument 3 has type ‘double*’ user.cpp:16: warning: format ‘%Lf’ expects type ‘long double*’, but argument 4 has type ‘double*’ user.cpp:23: warning: format ‘%.7Lf’ expects type ‘long double’, but argument 3 has type ‘double’ user.cpp:14: warning: unused variable ‘p’ user.cpp:16: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result