Left Rotate Array by K Positions

Code

#include <stdio.h>

void rotate_left(int arr[], int n, int k) {
    k=k%n;
   int start,end,temp;
   start=0;
   end=k-1;
   while(start<end){
    temp=arr[start];
    arr[start]=arr[end];
    arr[end]=temp;
    start++;end--;
   }
   start=k;
   end=n-1;
    while(start<end){
    temp=arr[start];
    arr[start]=arr[end];
    arr[end]=temp;
    start++;end--;
   }
   start=0;
   end=n-1;
    while(start<end){
    temp=arr[start];
    arr[start]=arr[end];
    arr[end]=temp;
    start++;end--;
   }
}

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