Left Rotate Array by K Positions

Code

#include <stdio.h>

void rotate_left(int arr[], int n, int k) {
    int i, new_idx;
    int idx = 0;
    int temp = arr[idx];
    k %= n;
    for(i = 0; i < (n - 1); i++){
        new_idx = (idx + k) % n;
        arr[idx] = arr[new_idx];
        idx = new_idx;
    }
    arr[idx] = temp;
}

int main() {
    int n, k;
    scanf("%d %d", &n, &k);

    int arr[100];

    // Read array elements
    for (int i = 0; i < n; i++) {
        scanf("%d", &arr[i]);
    }

    // Rotate the array
    rotate_left(arr, n, k);

    // Print the rotated array
    for (int i = 0; i < n; i++) {
        printf("%d", arr[i]);
        if(i < n-1){
        	printf(" ");
        }
    }

    return 0;
}

Solving Approach