3

 
  #include 
#3.Write a program to find element using sequential search. 

int main()
{
    int a[100], n, key, i, found = 0;

    printf("Enter the number of elements: ");
    scanf("%d", &n);

    printf("Enter %d elements:\n", n);
    for(i = 0; i < n; i++)
        scanf("%d", &a[i]);

    printf("Enter the element to search: ");
    scanf("%d", &key);

    for(i = 0; i < n; i++)
    {
        if(a[i] == key)
        {
            printf("Element %d found at position %d\n", key, i + 1);
            found = 1;
            break;
        }
    }

    if(found == 0)
        printf("Element %d not found\n", key);

    return 0;
}