Need help optimizing code (696102)

Scripting
1

I want to use an array for tags, I tried something like this:
if (col.tag == “pos[numbe]”) This did not work…
Is there any way to make this work, help will be appreciated.

public Transform[] pos;

    public float timer;
    public int numbe;

    private NavMeshAgent navComponent;


    // Use this for initialization
void Start()
    {
        navComponent = this.gameObject.GetComponent<NavMeshAgent>();
    }

void Update()
{
            //Selecting waypoint at random
            timer-= Time.deltaTime;
            if (timer<= 0f)
            {
                numbe = Random.Range(0, 4);
                timer= 5;
            }

            navComponent.SetDestination(pos[numbe].position);
}



//Switching between way point upon collision
    public void OnTriggerEnter(Collider col)
    {

        //Collision with waypoint 0
        if (col.tag == "0")
        {
            Debug.Log("debug0");
        }


        //Collision with waypoint 1
        if (col.tag == "1")
        {
            Debug.Log("debug1");
        }


        //Collision with waypoint 2
        if (col.tag == "2")
        {
            Debug.Log("debug2");
        }
}
2

Your tags need to be strings:

string[] tags = {"Player","enemy","wall"}

if(col.CompareTag(tags[0])
{
  //do something
}

for(int i=0;i<tags.Length;i++)
{
 if(col.CompareTag(tags[i]){
 Debug.Log("waypoint" + i);
}
}