#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 = 2e5 + 100;
struct T {
int a, b, c, d;
void read() {
cin >> a >> b >> c >> d;
}
T() { }
};
vector<T> trap;
vector<int> cc;
int fen[MAXN], dp[MAXN];
vector<int> in[MAXN], out[MAXN];
void add(int k, int val) {
while (k) {
fen[k] = max(fen[k], val);
k -= k & -k;
}
}
int query(int k) {
int mx = 0;
while (k < MAXN) {
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].c].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[i] = Q + 1;
mx = max(mx, dp[i]);
}
}
cout << mx << " 0" << "\n";
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
2 ms |
10840 KB |
Output isn't correct |
2 |
Incorrect |
2 ms |
10840 KB |
Output isn't correct |
3 |
Incorrect |
3 ms |
10904 KB |
Output isn't correct |
4 |
Incorrect |
5 ms |
10844 KB |
Output isn't correct |
5 |
Incorrect |
4 ms |
11096 KB |
Output isn't correct |
6 |
Incorrect |
5 ms |
11356 KB |
Output isn't correct |
7 |
Incorrect |
8 ms |
11216 KB |
Output isn't correct |
8 |
Incorrect |
7 ms |
11412 KB |
Output isn't correct |
9 |
Incorrect |
11 ms |
12000 KB |
Output isn't correct |
10 |
Runtime error |
28 ms |
26384 KB |
Execution killed with signal 11 |
11 |
Runtime error |
34 ms |
27344 KB |
Execution killed with signal 11 |
12 |
Runtime error |
51 ms |
27856 KB |
Execution killed with signal 11 |
13 |
Runtime error |
65 ms |
31132 KB |
Execution killed with signal 11 |
14 |
Runtime error |
70 ms |
29388 KB |
Execution killed with signal 11 |
15 |
Runtime error |
81 ms |
33480 KB |
Execution killed with signal 11 |
16 |
Runtime error |
88 ms |
34492 KB |
Execution killed with signal 11 |
17 |
Runtime error |
84 ms |
31944 KB |
Execution killed with signal 11 |
18 |
Runtime error |
85 ms |
35532 KB |
Execution killed with signal 11 |
19 |
Runtime error |
89 ms |
32768 KB |
Execution killed with signal 11 |
20 |
Runtime error |
98 ms |
33512 KB |
Execution killed with signal 11 |