Compilare: user.cpp: In function 'void down(big*, int, uint)': user.cpp:40: warning: comparison between signed and unsigned integer expressions user.cpp:43: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int main()': user.cpp:81: warning: format '%ld' expects type 'long int*', but argument 3 has type 'uint*' user.cpp:82: warning: comparison between signed and unsigned integer expressions user.cpp:84: warning: format '%ld' expects type 'long int*', but argument 3 has type 'big*' user.cpp:94: warning: format '%ld' expects type 'long int', but argument 3 has type 'big'