Left Rotate Array by K Positions

Code

#include <stdio.h>

void reverse(int arr[] ,int start,int end)
{
    while(start<end)
    {
        int temp=arr[start];
        arr[start]=arr[end];
        arr[end]=temp;
        start+=1;
        end-=1;
    }
    return;
}
void rotate_left(int arr[], int n, int k) {
    // Your logic here
    
    if(n==k) return;
    k=k%n;
    reverse(arr,0,k-1);
    reverse(arr,k,n-1);
    reverse(arr,0,n-1);
    return;

}


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