Compilare: user.cpp: In function 'int find_parent(clqtree_node*, clqtree_node*)': user.cpp:228: warning: comparison between signed and unsigned integer expressions user.cpp:242: warning: comparison between signed and unsigned integer expressions user.cpp:226: warning: unused variable 'y' user.cpp: In function 'void df_clqtree(clqtree_node*)': user.cpp:299: warning: comparison between signed and unsigned integer expressions user.cpp:306: warning: comparison between signed and unsigned integer expressions user.cpp:316: warning: comparison between signed and unsigned integer expressions user.cpp:328: warning: comparison between signed and unsigned integer expressions user.cpp:335: warning: comparison between signed and unsigned integer expressions user.cpp:346: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int find_max_value(clqtree_node*, int*)': user.cpp:382: warning: comparison between signed and unsigned integer expressions user.cpp:404: warning: comparison between signed and unsigned integer expressions user.cpp:412: warning: comparison between signed and unsigned integer expressions user.cpp:365: warning: 'oky' may be used uninitialized in this function user.cpp: In function 'clqtree_node* build_clqtree(int, int*)': user.cpp:255: warning: 'root' may be used uninitialized in this function