如何在C ++中存储从Vector弹出的项目

Question

I am making a program where i have to incorporate the use of vectors. But the problem is that i need to store the value of the popped off item from the vector. The vector's popback() doesn't really help with saving as it takes no arguments and has void return type. Help would be highly appreciated.

Answer 1

Try this example

std::vector<int> v = { 1, 2, 3, 4, 5 };

while ( !v.empty() )
{
   int x = v.back();
   v.pop_back();
   std::cout << x << ' ';
}

std::cout << std::endl;

There are several ways to access elements of a vector as for example back(), front(), operator [], at(), *it where it is an iterator.