C program to implement linear search in unsorted array

#include<stdio.h>

/* Function to implement search operation */
int findElement(int arr[], int n,int key)
{
    int i;
    for (i=0; i<n; i++)
        if (arr[i] == key)
            return i;

    return -1;
}

/* Driver program to test above function */
int main()
{
    int arr[] = {12, 34, 10, 6, 40,55,60,78,26,9,1,0,101};
    int n = sizeof(arr)/sizeof(arr[0]);

    //Using a last element as search element
    int key =26;
    int position = findElement(arr,n,key);

    if (position==-1)
        printf("Element not found");
    else
        printf("Element Found at Position: %d", position+1 );

    return 0;
}

OUTPUT:

Element Found at Position: 9