Compilare: user.cpp: In function ‘void DFs(long int)’: user.cpp:27: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void DFs_2(long int)’: user.cpp:70: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int main()’: user.cpp:93: warning: format ‘%d’ expects type ‘int*’, but argument 2 has type ‘long int*’ user.cpp:93: warning: format ‘%d’ expects type ‘int*’, but argument 3 has type ‘long int*’ user.cpp:96: warning: format ‘%d’ expects type ‘int*’, but argument 2 has type ‘long int*’ user.cpp:101: warning: format ‘%d’ expects type ‘int*’, but argument 2 has type ‘long int*’ user.cpp:101: warning: format ‘%d’ expects type ‘int*’, but argument 3 has type ‘long int*’ user.cpp:115: warning: format ‘%d’ expects type ‘int’, but argument 2 has type ‘long int’ user.cpp:91: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:92: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:93: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:96: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:101: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result