Compilare: user.cpp: In function 'void euler(int, int)': user.cpp:61: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int main()': user.cpp:73: warning: unused variable 'j' user.cpp: In function 'tnod lca(int, int, int)': user.cpp:43: warning: 's$id' may be used uninitialized in this function user.cpp:43: warning: 'd$id' may be used uninitialized in this function user.cpp: In function 'int main()': user.cpp:73: warning: 'sq' may be used uninitialized in this function user.cpp:73: warning: 'sp' may be used uninitialized in this function