Compilare: user.cpp:5:1: warning: multi-line comment user.cpp: In function ‘long int nrdivf(long int)’: user.cpp:30: warning: comparison between signed and unsigned integer expressions user.cpp:27: warning: unused variable ‘j’ user.cpp: In function ‘int main()’: user.cpp:43: warning: unused variable ‘j’ user.cpp:44: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:45: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:46: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result