Const Iterators (cbegin, cend)

Easy STL Iterators
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Problem Statement

Write a C++ program using `cbegin()` and `cend()` to read-only traverse a container safely.

Input Format

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

Output Format

Print elements separated by a space read via const iterators.

Constraints

1 <= N <= 1000

Sample Input

3
100 200 300

Sample Output

100 200 300

Explanation

Const iterators prevent accidental modification of container contents during traversal.

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 const iterator traversal logic here

    }
    return 0;
}

Limits

  • Time Limit: 1s
  • Memory Limit: 256MB

Embedded C Programming

Updated: March 15, 2026
Intermediate

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