Forward Iterators (begin, end)

Easy STL Iterators

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Problem Statement

Write a C++ program using a forward iterator to traverse a `std::vector` of integers and print its elements.

Input Format

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

Output Format

Print elements separated by a space using forward iterators.

Constraints

1 <= N <= 1000

Sample Input

5
10 20 30 40 50

Sample Output

10 20 30 40 50

Explanation

Forward iterators traverse containers sequentially from beginning to end using `++`.

Starter Code

#include <iostream>
#include <vector>

int main() {
    int n;
    if (std::cin >> n) {
        std::vector<int> vec(n);
        for (int i = 0; i < n; i++) std::cin >> vec[i];
        
        // Write your forward iterator traversal logic here

    }
    return 0;
}

Limits

Time Limit: 1s
Memory Limit: 256MB

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