Compilare: user.cpp: In function ‘void df(int)’: user.cpp:59: warning: comparison between signed and unsigned integer expressions user.cpp:82: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void rezolva()’: user.cpp:197: warning: format ‘%d’ expects type ‘int’, but argument 2 has type ‘long long int’ user.cpp:167: warning: unused variable ‘j’ user.cpp: In function ‘int main()’: user.cpp:209: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result