#include <bits/stdc++.h>
using namespace std;
#define fast ios::sync_with_stdio(0);cin.tie(0);
#define s second
#define f first
typedef long long ll;
const ll MOD = 1e9 + 7;
const ll LOGN = 21;
const ll MAXN = 4e5 + 100;
struct T {
int a, b, c, d;
void read() {
cin >> a >> b >> c >> d;
}
T() { }
};
vector<T> trap;
vector<int> cc, in[MAXN], out[MAXN];
int fen[MAXN], dp[MAXN];
void add(int k, int val) {
while (k < MAXN) {
fen[k] = max(fen[k], val);
k += k & -k;
}
}
int query(int k) {
int mx = 0;
while (k) {
mx = max(mx, fen[k]);
k -= k & -k;
}
return mx;
}
int main() {
fast
int N;
cin >> N;
trap = vector<T>(N);
for (int i = 0; i < N; i++) {
trap[i].read();
cc.push_back(trap[i].a);
cc.push_back(trap[i].b);
cc.push_back(trap[i].c);
cc.push_back(trap[i].d);
}
sort(cc.begin(), cc.end());
cc.erase(unique(cc.begin(), cc.end()), cc.end());
for (auto u : trap) {
u.a = upper_bound(cc.begin(), cc.end(), u.a) - cc.begin();
u.b = upper_bound(cc.begin(), cc.end(), u.b) - cc.begin();
u.c = upper_bound(cc.begin(), cc.end(), u.c) - cc.begin();
u.d = upper_bound(cc.begin(), cc.end(), u.d) - cc.begin();
}
for (int i = 0; i < N; i++) {
in[trap[i].a].push_back(i);
out[trap[i].b].push_back(i);
}
int mx = 0;
for (int i = 1; i < MAXN; i++) {
for (auto u : out[i])
add(trap[u].d, dp[u]);
for (auto u : in[i]) {
int Q = query(trap[u].c);
dp[u] = Q + 1;
mx = max(mx, dp[u]);
}
}
cout << mx << " 0" << "\n";
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Partially correct |
6 ms |
20056 KB |
Partially correct |
2 |
Partially correct |
5 ms |
20060 KB |
Partially correct |
3 |
Partially correct |
5 ms |
20056 KB |
Partially correct |
4 |
Partially correct |
6 ms |
20056 KB |
Partially correct |
5 |
Partially correct |
7 ms |
20312 KB |
Partially correct |
6 |
Partially correct |
9 ms |
20828 KB |
Partially correct |
7 |
Partially correct |
10 ms |
20828 KB |
Partially correct |
8 |
Partially correct |
12 ms |
20824 KB |
Partially correct |
9 |
Partially correct |
16 ms |
21272 KB |
Partially correct |
10 |
Partially correct |
26 ms |
22492 KB |
Partially correct |
11 |
Partially correct |
31 ms |
23000 KB |
Partially correct |
12 |
Runtime error |
61 ms |
45008 KB |
Execution killed with signal 11 |
13 |
Incorrect |
72 ms |
26576 KB |
Output isn't correct |
14 |
Runtime error |
92 ms |
46540 KB |
Execution killed with signal 11 |
15 |
Runtime error |
96 ms |
53596 KB |
Execution killed with signal 11 |
16 |
Runtime error |
105 ms |
55312 KB |
Execution killed with signal 11 |
17 |
Runtime error |
94 ms |
48592 KB |
Execution killed with signal 11 |
18 |
Partially correct |
105 ms |
29504 KB |
Partially correct |
19 |
Runtime error |
100 ms |
51412 KB |
Execution killed with signal 11 |
20 |
Runtime error |
112 ms |
50632 KB |
Execution killed with signal 11 |