/**
* title: Global Warming
**/
#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define si(x) int(x.size())
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()
#define rep(i,n) for(int i = 0; i < (int)(n); i++)
#define rrep(i,n) for(int i = (int)(n) - 1; i >= 0; i--)
template <class T, class U> inline bool chmax(T &a, U b) { return (a < b ? a = b, 1 : 0); }
template <class T, class U> inline bool chmin(T &a, U b) { return (b < a ? a = b, 1 : 0); }
template <class T> istream &operator>>(istream &is, vector<T> &v) { for (auto &x : v) is >> x; return is; }
template <class T> ostream &operator<<(ostream &os, const vector<T> &v) { rep(i, si(v)) os << (i ? " " : "") << v[i]; return os; }
using ll = long long;
constexpr int inf = 1001001001;
constexpr long long infll = 4004004004004004004LL;
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
int n, x;
cin >> n >> x;
vector<int> t(n);
cin >> t;
vector<int> lis, f(n);
rep(i, n) {
int j = lower_bound(all(lis), t[i]) - lis.begin();
f[i] = j;
j = lower_bound(all(lis), t[i] - x) - lis.begin();
if (j == si(lis)) lis.resize(j + 1);
lis[j] = t[i] - x;
}
int ans = si(lis);
lis.clear();
for (int i = n - 1; i > 0; i--) {
int j = lower_bound(all(lis), -t[i]) - lis.begin();
chmax(ans, f[i] + j + 1);
if (j == si(lis)) lis.resize(j + 1);
lis[j] = -t[i];
}
cout << ans << '\n';
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
344 KB |
Output is correct |
7 |
Correct |
0 ms |
344 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
344 KB |
Output is correct |
7 |
Correct |
0 ms |
344 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
344 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
344 KB |
Output is correct |
7 |
Correct |
0 ms |
344 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
344 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
344 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
35 ms |
3932 KB |
Output is correct |
2 |
Correct |
35 ms |
3920 KB |
Output is correct |
3 |
Correct |
39 ms |
3932 KB |
Output is correct |
4 |
Correct |
35 ms |
3932 KB |
Output is correct |
5 |
Correct |
19 ms |
3808 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
10 ms |
1372 KB |
Output is correct |
2 |
Correct |
9 ms |
1112 KB |
Output is correct |
3 |
Correct |
8 ms |
1348 KB |
Output is correct |
4 |
Correct |
5 ms |
1216 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
5 ms |
1284 KB |
Output is correct |
7 |
Correct |
7 ms |
1112 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
17 ms |
2136 KB |
Output is correct |
2 |
Correct |
19 ms |
2224 KB |
Output is correct |
3 |
Correct |
34 ms |
3796 KB |
Output is correct |
4 |
Correct |
20 ms |
3804 KB |
Output is correct |
5 |
Correct |
10 ms |
2392 KB |
Output is correct |
6 |
Correct |
23 ms |
3668 KB |
Output is correct |
7 |
Correct |
21 ms |
4320 KB |
Output is correct |
8 |
Correct |
13 ms |
2140 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
344 KB |
Output is correct |
7 |
Correct |
0 ms |
344 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
344 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
1 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 ms |
344 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
35 ms |
3932 KB |
Output is correct |
28 |
Correct |
35 ms |
3920 KB |
Output is correct |
29 |
Correct |
39 ms |
3932 KB |
Output is correct |
30 |
Correct |
35 ms |
3932 KB |
Output is correct |
31 |
Correct |
19 ms |
3808 KB |
Output is correct |
32 |
Correct |
10 ms |
1372 KB |
Output is correct |
33 |
Correct |
9 ms |
1112 KB |
Output is correct |
34 |
Correct |
8 ms |
1348 KB |
Output is correct |
35 |
Correct |
5 ms |
1216 KB |
Output is correct |
36 |
Correct |
0 ms |
348 KB |
Output is correct |
37 |
Correct |
5 ms |
1284 KB |
Output is correct |
38 |
Correct |
7 ms |
1112 KB |
Output is correct |
39 |
Correct |
17 ms |
2136 KB |
Output is correct |
40 |
Correct |
19 ms |
2224 KB |
Output is correct |
41 |
Correct |
34 ms |
3796 KB |
Output is correct |
42 |
Correct |
20 ms |
3804 KB |
Output is correct |
43 |
Correct |
10 ms |
2392 KB |
Output is correct |
44 |
Correct |
23 ms |
3668 KB |
Output is correct |
45 |
Correct |
21 ms |
4320 KB |
Output is correct |
46 |
Correct |
13 ms |
2140 KB |
Output is correct |
47 |
Correct |
17 ms |
2140 KB |
Output is correct |
48 |
Correct |
18 ms |
1996 KB |
Output is correct |
49 |
Correct |
37 ms |
3928 KB |
Output is correct |
50 |
Correct |
19 ms |
3808 KB |
Output is correct |
51 |
Correct |
17 ms |
3040 KB |
Output is correct |
52 |
Correct |
19 ms |
3920 KB |
Output is correct |
53 |
Correct |
18 ms |
3924 KB |
Output is correct |
54 |
Correct |
20 ms |
4576 KB |
Output is correct |
55 |
Correct |
29 ms |
4140 KB |
Output is correct |