Question

How to remove the N element from deque in C++

Answer 1

#include <iostream> 
#include <deque> 
 
void printdq(std::deque <int> dq) { 
    for (auto it = dq.begin(); it != dq.end(); ++it) 
        std::cout << *it << " "; 
    std::cout << '\n'; 
} 
 
int main() 
{ 
    std::deque<int> dq = { 5, 2, 9, 12, 7, 9, 13, 89 }; 
     
    printdq(dq);
    
    int N = 3; 
    std::deque<int>::iterator it = dq.begin() + N; 
    dq.erase(it); 
     
    printdq(dq);
   
    return 0; 
} 
   
   
   
/*
run:
   
5 2 9 12 7 9 13 89 
5 2 9 7 9 13 89 
   
*/

 

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