#include<bits/stdc++.h>
using namespace std;
#define fast ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define in insert
#define all(x) x.begin(),x.end()
#define pb push_back
#define eb emplace_back
#define ff first
#define ss second
#define int long long
typedef long long ll;
typedef vector<int> vi;
typedef set<int> si;
typedef multiset<int> msi;
typedef pair<int, int> pii;
typedef vector<pii> vpii;
// typedef pair<int, int> P;
template<typename T, typename U>
ostream & operator << (ostream &out, const pair<T, U> &c) {
out << c.first << ' ' << c.second;
return out;
}
template<typename T>
ostream & operator << (ostream &out, vector<T> &v) {
const int sz = v.size();
for (int i = 0; i < sz; i++) {
if (i) out << ' ';
out << v[i];
}
return out;
}
template<typename T>
istream & operator >> (istream &in, vector<T> &v) {
for (T &x : v) in >> x;
return in;
}
template<typename T, typename U>
istream & operator >> (istream &in, pair<T, U> &c) {
in >> c.first;
in >> c.second;
return in;
}
template<typename T>
void mxx(T &a, T b){if(b > a) a = b;}
template<typename T>
void mnn(T &a, T b){if(b < a) a = b;}
const int mxn = 5e5, MXLOG = 22, mod = 1e9 + 7, P = 1181, D = 1523, N = 2500;
const long long inf = 2e18 + 10;
int l[mxn], r[mxn], ans[mxn];
vector<int> qry[mxn], add[mxn];
int d[mxn * 4], lz[mxn * 4];
void pro(int i, int l, int r) {
if(lz[i] == 0) return;
mxx(d[i], lz[i]);
if(l < r) {
mxx(d[i * 2], lz[i]);
mxx(d[i * 2 + 1], lz[i]);
}
lz[i] = 0;
}
void update(int l, int r, int i, int x, int y, int val) {
pro(i, l, r);
if(l >= x && r <= y) {
mxx(lz[i], val);
pro(i, l, r);
return;
}
if(l > y || r < x) return;
int m = (l + r) / 2;
update(l, m, i * 2, x, y, val);
update(m + 1, r, i * 2 + 1, x, y, val);
d[i] = min(d[i * 2], d[i * 2 + 1]);
}
int get(int l, int r, int i, int x, int y) {
pro(i, l, r);
if(l >= x && r <= y) return d[i];
if(l > y || r < x) return inf;
int m = (l + r) / 2;
return min(get(l, m, i * 2, x, y), get(m + 1, r, i * 2 + 1, x, y));
}
void go() {
int n, m, q;
cin >> n >> m >> q;
for(int i = 1; i <= m; i++) {
int ll, rr;
cin >> ll >> rr;
add[rr].pb(ll);
}
for(int i = 1; i <= q; i++) {
cin >> l[i] >> r[i];
qry[r[i]].pb(i);
}
for(int i = 1; i <= n; i++) {
for(int ll : add[i]) {
update(1, n, 1, ll, i, ll);
}
for(int id : qry[i]) {
if(get(1, n, 1, l[id], r[id]) == l[id]) ans[id] = 1;
}
}
for(int i = 1; i <= q; i++) {
if(ans[i]) cout << "YES\n";
else cout << "NO\n";
}
}
signed main() {
fast;
int t = 1;
// cin >> t;
while(t--) {
go();
}
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
29020 KB |
Output is correct |
| 2 |
Correct |
6 ms |
29020 KB |
Output is correct |
| 3 |
Incorrect |
6 ms |
29020 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
29020 KB |
Output is correct |
| 2 |
Correct |
6 ms |
29020 KB |
Output is correct |
| 3 |
Incorrect |
6 ms |
29020 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
29020 KB |
Output is correct |
| 2 |
Correct |
6 ms |
29020 KB |
Output is correct |
| 3 |
Incorrect |
6 ms |
29020 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
29016 KB |
Output is correct |
| 2 |
Correct |
6 ms |
29020 KB |
Output is correct |
| 3 |
Incorrect |
6 ms |
29020 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
29020 KB |
Output is correct |
| 2 |
Correct |
6 ms |
29020 KB |
Output is correct |
| 3 |
Incorrect |
6 ms |
29020 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
29020 KB |
Output is correct |
| 2 |
Correct |
6 ms |
29020 KB |
Output is correct |
| 3 |
Incorrect |
6 ms |
29020 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
