Left Rotate Array by K Positions

#include <stdio.h>

void rotate_left(int arr[], int n, int k) {
    k %= n;

    for(int i=0; i<(n/2);i++)
    {
        int temp = arr[i];
        arr[i] = arr[n-1-i];
        arr[n-1-i] = temp;
    }

    int idx = n - k;

    for(int i=0;i<(idx/2);i++)
    {
        int temp = arr[i];
        arr[i] = arr[idx-1-i];
        arr[idx-1-i] = temp;
    }
    for(int i=0;i<((n-idx)/2);i++)
    {
        int temp = arr[i+idx];
        arr[i+idx] = arr[n-1-i];
        arr[n-1-i] = 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;
}