Compilare: user.cpp: In function 'bool test(int)': user.cpp:15: warning: comparison between signed and unsigned integer expressions user.cpp:16: warning: comparison between signed and unsigned integer expressions user.cpp:17: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int main()': user.cpp:40: warning: format '%d' expects type 'int*', but argument 2 has type 'll*' user.cpp:40: warning: format '%d' expects type 'int*', but argument 3 has type 'll*' user.cpp:41: warning: comparison between signed and unsigned integer expressions