C++ Deque pop_back()

void pop_back();

#include <iostream>
#include<deque>
using namespace std;
int main()
{
    deque<int> d={1,2,3,4,5};
    deque<int>::iterator itr;
    d.pop_back();
    for(itr=d.begin();itr!=d.end();++itr)
    cout<<*itr<<" ";
    return 0;
    }

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