Question

How to insert element at beginning and end of a list in C++

Answer 1

#include <iostream> 
#include <list> 
 
void printlist(std::list <int> lst) { 
    for (auto &n: lst)
        std::cout << n << ", ";
    std::cout << '\n'; 
} 
 
int main() 
{ 
    std::list<int> lst = {1, 2, 3, 4, 5};

	lst.push_front(100);
	
	lst.push_back(999);
	
	printlist(lst);
   
    return 0; 
} 
   
   
   
/*
run:
   
100, 1, 2, 3, 4, 5, 999,  
   
*/

 

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