Apply MO's algorithm on a range of query

Can anyone tell me how to use MO's algorithm here in this code for a range of queries? I am getting TIME LIMIT EXCEEDED on running the below given code.

The problem statement is as follows: You are given two arrays, array A of size n and array B of size m. Array A will have integers from 1 to m and array B has expected occurrence of each number present in array A. Now you have queries in the form of range and if for given range, occurrence of each number in that range of array A is equal to its expected occurrence present in array B, then you have to print 1,otherwise 0.

#include<bits/stdc++.h>
      using namespace std;
      #define ll long long int
      int main() 
     {
     ios_base::sync_with_stdio(false);
     cin.tie(NULL);
 
      ll n, m, i;
     cin >> n >> m;
    ll arr[n], arr1[m],freq[m];

     for (i = 0; i < n; i++)
    {
    cin >> arr[i];
     }
    for (i = 0; i < m; i++)
    {
    cin >> arr1[i];
    freq[i]=arr1[i];
    }

    ll q;
    cin >> q;

    while (q--) 
    {
    ll low, high;
    cin >> low >> high;

    ll good = 1;

    for (i = low - 1; i < high; i++) {
        freq[arr[i] - 1]--;
    }

    for (i = low - 1; i < high; i++)
    {
        if (freq[arr[i] - 1] != 0) 
        {
            good = 0;
            break;
        }
    }
    cout << good << '\n';

     for(i=0;i<m;i++)
     {
        freq[i]=arr1[i];
    }

    }

    }