#include <iostream>

 #include <vector>

 using namespace std;

 int main()

 {

     vector<int> ivec1, ivec2;

     int ival,iva2;

     cout<<"Enter numbers for vector1(-1 to end): "<<endl;

     cin >> ival;

     while (ival != -)

     {

         ivec1.push_back(ival);

         cin >> ival;

     }

     cout<<"Enter numbers for vector2(-1 to end): "<<endl;

     cin >> iva2;

     while (iva2 != -)

     {

         ivec2.push_back(iva2);

         cin >> iva2;

     }

     if (ivec1.size() != ivec2.size())

         cout<<"Vector1 is not equal to vector2."<<endl;

     else if(ivec1.size() == )

         cout<<"Vector1 is equal to vector2"<<endl;

     else

     {

         vector<int>::iterator iter1, iter2;

         iter1 = ivec1.begin();

         iter2 = ivec2.begin();

         while (iter1 != ivec1.end() && iter2 != ivec2.end()

             && *iter1 == *iter2)

         {

             ++iter1;

             ++iter2;

         }

         if(iter1 == ivec1.end())

             cout<<"Vector1 is equal to vector2."<<endl;

         else

             cout<<"Vector1 is not equal to vector2."<<endl;

     }

     return ;

 }