#include #include #include #include using namespace std; typedef long long ll; ll a[200010],b[200010],t[200010],c[200010]; int main(){ int i,n,m; cin >> n >> m; vector> v; for(i=0;i> a[i]; for(i=0;i> b[i]; for(i=0;i ms0,ms1; for(i=0;i> t[i] >> c[i]; if(t[i]==0) ms0.insert(c[i]); else ms1.insert(c[i]); } int ans = 0,cnt = 0; for(i=n - 1;i>=0;i--){ while(ms0.size() && v[i].first<=*ms0.rbegin()){ cnt++; ms0.erase(ms0.find(*ms0.rbegin())); } auto it = ms1.lower_bound(v[i].second); if(it!=ms1.end()){ ans++; ms1.erase(it); }else if(cnt){ ans++; cnt--; } } cout << n - ans << "\n"; }