Rotate

Medium Arrays
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Problem Statement

Write a C++ program that reads an array of N integers and rotates it left by K positions.

Input Format

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

Output Format

Print rotated array elements separated by a space.

Constraints

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

Sample Input

5 2
10 20 30 40 50

Sample Output

30 40 50 10 20

Explanation

Shifts elements left by K positions, wrapping around elements.

Starter Code

#include <iostream>
#include <vector>

int main() {
    int n, k;
    if (std::cin >> n >> k) {
        std::vector<int> arr(n);
        for (int i = 0; i < n; i++) {
            std::cin >> arr[i];
        }
        // Write your code here
    }
    return 0;
}

Limits

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

Embedded C Programming

Updated: March 15, 2026
Intermediate

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