60 баллов

#include<bits/stdc++.h>

using namespace std;

int main()
{
    int n, m, k, t;
    cin >> n >> m >> k >> t;

    int a[n][m];
    for(int i = 0; i < n; i++)
        for(int j = 0; j < m; j++)
            cin >> a[i][j];

    while(t--)
    {
        int x, y;
        cin >> x >> y;
        a[x - 1][y - 1] = -1;
    }

    int mx = -1, x = 1, y = 1;
    for(int i = 0; i < n; i++)
        for(int j = 0; j < m; j++)
            if(a[i][j] > mx)
                mx = a[i][j], x = i + 1, y = j + 1;

    cout << mx << "\n" << x << " " << y;
}