Compilare: user.cpp: In function ‘int main()’: user.cpp:30:12: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(a[de[fr1]]-a[d[fr]] <=z) ^ user.cpp:39:36: warning: ‘p2’ may be used uninitialized in this function [-Wmaybe-uninitialized] else fout<<mx<<" "<<p1<<" "<<p2; ^ user.cpp:39:25: warning: ‘p1’ may be used uninitialized in this function [-Wmaybe-uninitialized] else fout<<mx<<" "<<p1<<" "<<p2; ^