vector last c++

vector<int> v;
cout << v[v.size() - 1];
cout << *(v.end() - 1);
cout << *v.rbegin();
// all three of them work

4.5
4

                                    std::v.back()

4.5 (4 Votes)
0
4.6
5

                                    // vector::back
#include &lt;iostream&gt;
#include &lt;vector&gt;

int main ()
{
  std::vector&lt;int&gt; myvector;

  myvector.push_back(10);

  while (myvector.back() != 0)
  {
    myvector.push_back ( myvector.back() -1 );
  }

  std::cout &lt;&lt; &quot;myvector contains:&quot;;
  for (unsigned i=0; i&lt;myvector.size() ; i++)
    std::cout &lt;&lt; ' ' &lt;&lt; myvector[i];
  std::cout &lt;&lt; '\n';

  return 0;
}

4.6 (5 Votes)
0
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