#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define sp ' '
#define en '\n'
#define smin(a, b) a = min(a, b)
#define smax(a, b) a = max(a, b)
using namespace std;
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
int n, k;
cin >> n >> k;
vector<int> a(n);
for (int i = 0; i < n; i++) cin >> a[i];
auto MakeLIS = [&] (vector<int> v, int f) {
vector<int> pom(n + 1, 1e9);
vector<int> ret;
if (f) for (int i = 0; i < n; i++) v[i] = -v[i];
for (int i = 0; i < n; i++) {
int l = 1, r = n;
int ans = 0;
while (l <= r) {
int mid = l + r >> 1;
if (pom[mid] < v[i]) {
l = mid + 1;
ans = mid;
}
else r = mid - 1;
}
ans += 1;
ret.push_back(ans);
smin(pom[ans], v[i]);
}
return ret;
};
vector<int> x = MakeLIS(a, 0);
reverse(a.begin(), a.end());
vector<int> y = MakeLIS(a, 1);
reverse(a.begin(), a.end());
reverse(y.begin(), y.end());
int ans = 1;
vector<int> pom(n + 1, 2e9);
for (int i = 0; i < n; i++) {
int l = 1, r = n;
int w = 0;
while (l <= r) {
int mid = l + r >> 1;
if (pom[mid] - k < a[i]) {
l = mid + 1;
w = mid;
}
else r = mid - 1;
}
smin(pom[x[i]], a[i]);
smax(ans, w + y[i]);
}
cout << ans << en;
return 0;
}
Compilation message
glo.cpp: In lambda function:
glo.cpp:25:29: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
25 | int mid = l + r >> 1;
| ~~^~~
glo.cpp: In function 'int main()':
glo.cpp:49:25: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
49 | int mid = l + r >> 1;
| ~~^~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 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 |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
320 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
316 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 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 |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
320 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
316 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
316 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 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 |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
320 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
316 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
316 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
324 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
320 KB |
Output is correct |
24 |
Correct |
1 ms |
324 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
72 ms |
5240 KB |
Output is correct |
2 |
Correct |
61 ms |
5272 KB |
Output is correct |
3 |
Correct |
62 ms |
5168 KB |
Output is correct |
4 |
Correct |
64 ms |
5156 KB |
Output is correct |
5 |
Correct |
45 ms |
5172 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
16 ms |
1488 KB |
Output is correct |
2 |
Correct |
17 ms |
1560 KB |
Output is correct |
3 |
Correct |
16 ms |
1544 KB |
Output is correct |
4 |
Correct |
11 ms |
1544 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
11 ms |
1548 KB |
Output is correct |
7 |
Correct |
12 ms |
1488 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
26 ms |
2752 KB |
Output is correct |
2 |
Correct |
27 ms |
2756 KB |
Output is correct |
3 |
Correct |
53 ms |
5160 KB |
Output is correct |
4 |
Correct |
47 ms |
5164 KB |
Output is correct |
5 |
Correct |
25 ms |
2784 KB |
Output is correct |
6 |
Correct |
44 ms |
4956 KB |
Output is correct |
7 |
Correct |
44 ms |
5024 KB |
Output is correct |
8 |
Correct |
21 ms |
2756 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
212 KB |
Output is correct |
3 |
Correct |
0 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 |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
320 KB |
Output is correct |
8 |
Correct |
0 ms |
212 KB |
Output is correct |
9 |
Correct |
0 ms |
316 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
0 ms |
316 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
0 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
324 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
320 KB |
Output is correct |
24 |
Correct |
1 ms |
324 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
72 ms |
5240 KB |
Output is correct |
28 |
Correct |
61 ms |
5272 KB |
Output is correct |
29 |
Correct |
62 ms |
5168 KB |
Output is correct |
30 |
Correct |
64 ms |
5156 KB |
Output is correct |
31 |
Correct |
45 ms |
5172 KB |
Output is correct |
32 |
Correct |
16 ms |
1488 KB |
Output is correct |
33 |
Correct |
17 ms |
1560 KB |
Output is correct |
34 |
Correct |
16 ms |
1544 KB |
Output is correct |
35 |
Correct |
11 ms |
1544 KB |
Output is correct |
36 |
Correct |
0 ms |
212 KB |
Output is correct |
37 |
Correct |
11 ms |
1548 KB |
Output is correct |
38 |
Correct |
12 ms |
1488 KB |
Output is correct |
39 |
Correct |
26 ms |
2752 KB |
Output is correct |
40 |
Correct |
27 ms |
2756 KB |
Output is correct |
41 |
Correct |
53 ms |
5160 KB |
Output is correct |
42 |
Correct |
47 ms |
5164 KB |
Output is correct |
43 |
Correct |
25 ms |
2784 KB |
Output is correct |
44 |
Correct |
44 ms |
4956 KB |
Output is correct |
45 |
Correct |
44 ms |
5024 KB |
Output is correct |
46 |
Correct |
21 ms |
2756 KB |
Output is correct |
47 |
Correct |
32 ms |
3632 KB |
Output is correct |
48 |
Correct |
32 ms |
3764 KB |
Output is correct |
49 |
Correct |
66 ms |
7064 KB |
Output is correct |
50 |
Correct |
48 ms |
6296 KB |
Output is correct |
51 |
Correct |
43 ms |
5096 KB |
Output is correct |
52 |
Correct |
53 ms |
6528 KB |
Output is correct |
53 |
Correct |
43 ms |
6416 KB |
Output is correct |
54 |
Correct |
47 ms |
7204 KB |
Output is correct |
55 |
Correct |
57 ms |
7200 KB |
Output is correct |