Compilare: user.cpp:28:24: warning: integer overflow in expression [-Woverflow] const int oo = (1<<31)-1; ^ user.cpp: In function ‘void BuildDynamic()’: user.cpp:53:15: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(a[i] < a[j]) ^ user.cpp: In function ‘int main()’: user.cpp:76:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0 ; j < aux[i].size(); ++ j) ^