searching

#include <stdio.h>
#include <stdlib.h>
void printArray(int pArr[], int n) //function to print Array
{
    printf("\n");
    printf("{");
    for (int i = 0; i < n; ++i) {
        printf("%d",pArr[i]);
        if(i<n-1)
            printf(", ");
    }
    printf("}");
    printf("\n\n");
}
void linearSearch(int arr[],int n) //function for linear searching
{
    int key,flag=0,pos;
    printf("\nEnter key to be searched: ");
    scanf("%d",&key);

    for (int i = 0; i < n; ++i) {
        if(arr[i]==key){
            flag=1;
            pos=i+1;
            break;
        }
    }
    if(flag==1)
        printf("Linear Search successful, Element found at position %d\n",pos);
    else
        printf("Element not found!\n");
}
void bubbleSort(int arr[],int n,int sorted_arr[]) // function for bubble sorting
{
    int temp;
    for (int i = 0; i < n; ++i) {
        sorted_arr[i]=arr[i];
    }
    for (int i = 0; i < n-1; ++i) {
        for (int j = 0; j < n-i-1; ++j) {
            if(sorted_arr[j]>sorted_arr[j+1]){
                temp=sorted_arr[j];
                sorted_arr[j]=sorted_arr[j+1];
                sorted_arr[j+1]=temp;
            }
        }
    }
    printf("\nSorted Array");
    printArray(sorted_arr,n);
}
void binarySearch(int arr[],int n) // function for binary searching
{
    int sorted_arr[n];
    bubbleSort(arr,n,sorted_arr);
    int key,mid,l=0,u=n-1,flag=0;
    printf("\nEnter key to be searched: ");
    scanf("%d",&key);
    while (flag==0 && l<=u){
        mid=(l+u)/2;
        if(arr[mid]==key)
            flag=1;
        if(key<arr[mid])
            u=mid-1;
        else
            l=mid+1;
    }
    if(flag==1)
        printf("Binary Search successful, Element found at position %d\n",++mid);
    else
        printf("Element not found!\n");
}
int main()
{
    int n;
    printf("Enter number of elements in array:\n");
    scanf("%d",&n);
    int arr[n];
    printf("Enter %d numbers:\n",n);
    for (int i = 0; i < n; ++i) {
        scanf("%d",&arr[i]);
    }
    printArray(arr,n);
    while (1) {
        int choice=0;
        printf("\n1. Linear Search\n2. Binary Search\n3. Exit");
        printf("\nEnter your choice: ");
        scanf("%d",&choice);
        switch (choice) {
            case 1:
                linearSearch(arr,n);
                break;
            case 2:
                binarySearch(arr,n);
                break;
            case 3:
                exit(0);
            default:
                printf("Enter a valid argument!\n");
                break;
        }
    }
}