Compilare: user.cpp: In function ‘int main()’: user.cpp:52: warning: format ‘%Lf’ expects type ‘long double’, but argument 2 has type ‘double’ user.cpp:52: warning: format ‘%Lf’ expects type ‘long double’, but argument 3 has type ‘double’ user.cpp:52: warning: format ‘%Lf’ expects type ‘long double’, but argument 4 has type ‘double’ user.cpp:52: warning: format ‘%Lf’ expects type ‘long double’, but argument 5 has type ‘double’ user.cpp:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:36: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result