Question

How to get the first element in deque in C++

Answer 1

#include <iostream>
#include <deque> 
 
int main ()
{
   std::deque<int> dq = {5, 2, 9, 12, 7, 1, 6}; 
   
   std::deque<int>::iterator it = dq.begin();
   
   std::cout << *it << "\n";
   
   std::cout << dq[0];
 
   return 0;
}
   
   
   
/*
run:
   
5
5
    
*/

 

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