#include <iostream>
#include<vector>

using namespace std;

int n,k,m,a,b;
vector<int>rooms(1e5 +3,1);
vector<vector<int> >color(1e5 +3);

int main()
{
    cin>>n>>k>>m;
    for(int i=1;i<=n;i++)
    {
        cin>>a;
        color[a].push_back(i);
    }
    while(m--)
    {
        cin>>a>>b;
        if(b==1)
        {
            for(int i=color[a].size()-1;i>=0;i--)
            {
                rooms[color[a][i]+1]+=rooms[color[a][i]];
                rooms[color[a][i]]=0;
            }
        }
        else
        {
            for(int i=0;i<color[a].size();i++)
            {
                rooms[color[a][i]-1]+=rooms[color[a][i]];
                rooms[color[a][i]]=0;
            }
        }
    }
    cout<<rooms[0]+rooms[n+1]-2;
    return 0;
}