Compilare: user.cpp: In function ‘void det(int)’: user.cpp:48: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp: In function ‘int main()’: user.cpp:61: warning: comparison between signed and unsigned integer expressions user.cpp:65: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int liber(long unsigned int)’: user.cpp:83: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int cautare(long unsigned int, long unsigned int, long unsigned int)’: user.cpp:104: warning: control reaches end of non-void function