List Operations (Doubly Linked List)

Easy STL Containers

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Problem Statement

Write a C++ program using `std::list` to perform insertions, removals, and traversal.

Input Format

First line: N. Second line: N space-separated integers.

Output Format

Print list elements separated by a space.

Constraints

1 <= N <= 1000

Sample Input

4
1 2 3 4

Sample Output

1 2 3 4

Explanation

Lists support constant time insertion and deletion anywhere in the container.

Starter Code

#include <iostream>
#include <list>

int main() {
    int n;
    if (std::cin >> n) {
        std::list<int> lst;
        for (int i = 0; i < n; i++) {
            int val;
            std::cin >> val;
            lst.push_back(val);
        }
        // Write your list traversal logic here

    }
    return 0;
}

Limits

Time Limit: 1s
Memory Limit: 256MB

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