Compilare: user.cpp: In function ‘nod* rotright(nod*)’: user.cpp:25:19: warning: operation on ‘n->nod::h’ may be undefined [-Wsequence-point] n->h = geth(n); ^ user.cpp: In function ‘nod* rotleft(nod*)’: user.cpp:35:20: warning: operation on ‘n->nod::h’ may be undefined [-Wsequence-point] n->h = geth(n); ^ user.cpp: In function ‘int maxim(nod*)’: user.cpp:49:10: warning: statement has no effect [-Wunused-value] for(t;t->l!=nil;t=t->l); ^ user.cpp: In function ‘nod* balance(nod*)’: user.cpp:78:19: warning: operation on ‘n->nod::h’ may be undefined [-Wsequence-point] n->h = geth(n); ^ user.cpp: In function ‘nod* sterg(nod*, int)’: user.cpp:134:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:162:21: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, m, f); ^