Compilare: user.cpp: In function 'void make_ln(long long int (&)[3010], char*)': user.cpp:34: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'void print_ln(long long int (&)[3010])': user.cpp:42: warning: format '%d' expects type 'int', but argument 2 has type 'long long int' user.cpp:44: warning: format '%.7d' expects type 'int', but argument 2 has type 'long long int' user.cpp: In function 'int main()': user.cpp:144: warning: format '%s' expects type 'char*', but argument 2 has type 'char (*)[2100]'