#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define all(x) x.begin(), x.end()
#define L(i, b, e) for (int i = b; i < e; ++i)
#define R(i, b, e) for (int i = b; i >= e; --i)
#define pb emplace_back
#define vi vector<int>
#define sz(x) ((int) x.size())
const int N = 2e5 + 7, Mx = 1e9 + 9;
int n, q;
int ans[N];
int main(){
ios::sync_with_stdio(false);
cin.tie(nullptr);
cin >> n >> q;
map<int, vi> f;
vi p;
L(i, 0, n){
int a, b;
cin >> a >> b;
f[a].pb(b);
p.pb(a);
}
sort(all(p));
p.erase(unique(all(p)), p.end());
map<int, vector<pair<int, int>>> t;
L(i, 0, q){
int a, b;
cin >> a >> b;
auto it = lower_bound(all(p), a);
if (it != p.end()){
t[*it].pb(b, i);
}
}
vi a;
R(i, sz(p) - 1, 0){
sort(all(f[p[i]]));
sort(all(t[p[i]]));
deque<int> cur;
int k = 0, w = 0, l = 0;
t[p[i]].pb(1e9, -1);
L(j, 0, sz(t[p[i]])){
while (k < sz(f[p[i]]) && f[p[i]][k] <= t[p[i]][j].first){
cur.pb(f[p[i]][k]);
++k;
}
while (!cur.empty() && w < sz(a) && a[w] <= t[p[i]][j].first){
if (cur.front() < a[w]){
a[w] = cur.front();
cur.pop_front();
}
++w;
}
while (l < sz(a) && a[l] <= t[p[i]][j].first)++l;
if (t[p[i]][j].second != -1)ans[t[p[i]][j].second] = l + sz(cur);
}
for (auto &j : cur)a.pb(j);
}
L(i, 0, q)cout << ans[i] << "\n";
}
