Compilare: main.cpp: In function 'int mindif(node*&)': main.cpp:45:15: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses] if(n->minndif>0 >n->minndif < INT_MAX-1000) return n->minndif; ~~~~~~~~~~^~ main.cpp:45:30: warning: comparison of constant '2147482647' with boolean expression is always true [-Wbool-compare] if(n->minndif>0 >n->minndif < INT_MAX-1000) return n->minndif; ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~ main.cpp:45:18: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses] if(n->minndif>0 >n->minndif < INT_MAX-1000) return n->minndif; ~~~~~~~~~~~~~^~~~~~~~~~~ main.cpp: In function 'void remax(node*&)': main.cpp:56:9: warning: value computed is not used [-Wunused-value] n->mxx-max(n->mxx,n->l->mxx); ~~~~~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:62:9: warning: value computed is not used [-Wunused-value] n->mxx-max(n->mxx,n->r->mxx); ~~~~~~^~~~~~~~~~~~~~~~~~~~~~