#define NDEBUG
#ifdef NDEBUG
#define dbg(TXTMSG) (static_cast<int>(0))
#define dbgv(VARN) (static_cast<int>(0))
#else
#define dbg(TXTMSG) cerr << "\n" << TXTMSG
#define dbgv(VARN) cerr << "\n" << #VARN << " = "<<VARN << ", line: " << __LINE__ << "\n"
#define _GLIBCXX_DEBUG 1
#define _GLIBCXX_DEBUG_PEDANTIC 1
#endif
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
constexpr ll INFTY = 1e10;
#define var const auto&
int main() {
ll N,X;
cin >> N >> X;
vector<ll> tempratures(N);
for (ll i = 0; i < N; i++)
{
cin >> tempratures[i];
}
vector<ll> needed_info(N);
vector<ll> currtime_best_revLDS_of_len(N+2,INFTY);
currtime_best_revLDS_of_len[0] = -INFTY;
for (ll i = (N-1); i >= 0; i--)
{
//
//dbg("array at step") << i;
//for (ll i = 0; i <= N+1; i++)
{
// dbg(":") << (currtime_best_revLDS_of_len[i]);
}
//dbgv(*lower_bound(currtime_best_revLDS_of_len.begin(),currtime_best_revLDS_of_len.end(), -(tempratures[i]-X)));
needed_info[i] = lower_bound(currtime_best_revLDS_of_len.begin(),currtime_best_revLDS_of_len.end(), -(tempratures[i]-X))
- currtime_best_revLDS_of_len.begin()-1ll;
dbgv(needed_info[i]);
//
ll cindice = lower_bound(currtime_best_revLDS_of_len.begin(),currtime_best_revLDS_of_len.end()
, -tempratures[i])
- currtime_best_revLDS_of_len.begin();
currtime_best_revLDS_of_len[cindice]=-tempratures[i];
}
vector<ll> before_cheating_best_LIS_of_len(N+1,INFTY);
before_cheating_best_LIS_of_len[0]=-INFTY;
ll best = 1;
for (ll i = 0; i < N; i++)
{
//dbg("array 2 at step") << i;
//for (ll i = 0; i < N; i++)
{
// dbg(":") << (before_cheating_best_LIS_of_len[i]);
}
best = max(best,
needed_info[i]
+ (lower_bound(before_cheating_best_LIS_of_len.begin(),before_cheating_best_LIS_of_len.end(), tempratures[i]) - before_cheating_best_LIS_of_len.begin())
);
*lower_bound(before_cheating_best_LIS_of_len.begin(),before_cheating_best_LIS_of_len.end(), tempratures[i])
=tempratures[i];
}
cout << max(best,lower_bound(before_cheating_best_LIS_of_len.begin(),before_cheating_best_LIS_of_len.end(), INFTY)
- before_cheating_best_LIS_of_len.begin()-1ll);
}
/*
6 10
6 5 4 3 2 1*/
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
300 KB |
Output is correct |
7 |
Correct |
0 ms |
300 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
224 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
300 KB |
Output is correct |
7 |
Correct |
0 ms |
300 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
224 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
300 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
304 KB |
Output is correct |
18 |
Correct |
0 ms |
300 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
300 KB |
Output is correct |
7 |
Correct |
0 ms |
300 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
224 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
300 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
304 KB |
Output is correct |
18 |
Correct |
0 ms |
300 KB |
Output is correct |
19 |
Correct |
1 ms |
304 KB |
Output is correct |
20 |
Correct |
1 ms |
308 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
304 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
1 ms |
212 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
99 ms |
8004 KB |
Output is correct |
2 |
Correct |
100 ms |
8088 KB |
Output is correct |
3 |
Correct |
100 ms |
8080 KB |
Output is correct |
4 |
Correct |
99 ms |
8016 KB |
Output is correct |
5 |
Correct |
70 ms |
7372 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
24 ms |
2260 KB |
Output is correct |
2 |
Correct |
25 ms |
2336 KB |
Output is correct |
3 |
Correct |
24 ms |
2260 KB |
Output is correct |
4 |
Correct |
18 ms |
2144 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
18 ms |
2156 KB |
Output is correct |
7 |
Correct |
21 ms |
2340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
46 ms |
4228 KB |
Output is correct |
2 |
Correct |
46 ms |
4224 KB |
Output is correct |
3 |
Correct |
92 ms |
8088 KB |
Output is correct |
4 |
Correct |
68 ms |
7404 KB |
Output is correct |
5 |
Correct |
37 ms |
3924 KB |
Output is correct |
6 |
Correct |
62 ms |
7104 KB |
Output is correct |
7 |
Correct |
79 ms |
8008 KB |
Output is correct |
8 |
Correct |
41 ms |
4300 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
0 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
300 KB |
Output is correct |
7 |
Correct |
0 ms |
300 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
224 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
0 ms |
300 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
0 ms |
304 KB |
Output is correct |
18 |
Correct |
0 ms |
300 KB |
Output is correct |
19 |
Correct |
1 ms |
304 KB |
Output is correct |
20 |
Correct |
1 ms |
308 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
304 KB |
Output is correct |
23 |
Correct |
1 ms |
212 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
1 ms |
212 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
99 ms |
8004 KB |
Output is correct |
28 |
Correct |
100 ms |
8088 KB |
Output is correct |
29 |
Correct |
100 ms |
8080 KB |
Output is correct |
30 |
Correct |
99 ms |
8016 KB |
Output is correct |
31 |
Correct |
70 ms |
7372 KB |
Output is correct |
32 |
Correct |
24 ms |
2260 KB |
Output is correct |
33 |
Correct |
25 ms |
2336 KB |
Output is correct |
34 |
Correct |
24 ms |
2260 KB |
Output is correct |
35 |
Correct |
18 ms |
2144 KB |
Output is correct |
36 |
Correct |
1 ms |
212 KB |
Output is correct |
37 |
Correct |
18 ms |
2156 KB |
Output is correct |
38 |
Correct |
21 ms |
2340 KB |
Output is correct |
39 |
Correct |
46 ms |
4228 KB |
Output is correct |
40 |
Correct |
46 ms |
4224 KB |
Output is correct |
41 |
Correct |
92 ms |
8088 KB |
Output is correct |
42 |
Correct |
68 ms |
7404 KB |
Output is correct |
43 |
Correct |
37 ms |
3924 KB |
Output is correct |
44 |
Correct |
62 ms |
7104 KB |
Output is correct |
45 |
Correct |
79 ms |
8008 KB |
Output is correct |
46 |
Correct |
41 ms |
4300 KB |
Output is correct |
47 |
Correct |
49 ms |
4400 KB |
Output is correct |
48 |
Correct |
49 ms |
4340 KB |
Output is correct |
49 |
Correct |
98 ms |
8380 KB |
Output is correct |
50 |
Correct |
68 ms |
7608 KB |
Output is correct |
51 |
Correct |
53 ms |
5812 KB |
Output is correct |
52 |
Correct |
71 ms |
7724 KB |
Output is correct |
53 |
Correct |
64 ms |
7740 KB |
Output is correct |
54 |
Correct |
78 ms |
8416 KB |
Output is correct |
55 |
Correct |
87 ms |
8496 KB |
Output is correct |