Compilare: user.cpp: In function ‘void insert(int, node*&)’: user.cpp:47:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (x<p->inf){ ^ user.cpp:50:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (x < p->left->inf) ^ user.cpp:49:16: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if ((bsheight(p->left) - bsheight(p->right))==2) ^ user.cpp:55:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if (x>p->inf){ ^ user.cpp:58:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (x > p->right->inf) ^ user.cpp:57:16: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if ((bsheight(p->right)-bsheight(p->left))==2) ^