Vector Rotation Challenge

Medium STL Containers

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Problem Statement

Write a C++ program using `std::rotate` algorithm on a `std::vector` to shift elements left by K positions.

Input Format

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

Output Format

Print rotated vector separated by a space.

Constraints

1 <= N <= 1000, 0 <= K <= 1000

Sample Input

5 2
1 2 3 4 5

Sample Output

3 4 5 1 2

Explanation

STL algorithms like `std::rotate` integrate smoothly with vector iterators.

Starter Code

#include <iostream>
#include <vector>
#include <algorithm>

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

    }
    return 0;
}

Limits

Time Limit: 1s
Memory Limit: 256MB

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