Linear Searching

#include <stdio.h>
#include <conio.h>

int linearsearch(int a[], int key)
{
    int i, location = -1;
    for (i = 0; i < 10 ; i++)
    {
        if (a[i] == key)
        {
            location = i + 1;
            return location;
        }
    }
    return location;
}

int main()
{
    int key, loc;
    int a[10] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
    printf("Enter the Key: ");
    scanf("%d", &key);
    loc = linearsearch (a, key);
    if (loc == -1)
    {
        printf("Search Unsuccessful. Input a correct key.\n");
    }
    else
    {
        printf("The location of Key %d is %d", key, loc);
    }
    getch();
}