#include <bits/stdc++.h>
#define fi first
#define se second
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define pill pair<int,ll>
#define mem(a, b) memset(a, b, sizeof(a))
#define MASK(i) (1LL << (i))
#define BIT(x, i) (((x) >> (i)) & 1)
#define name "test"
using namespace std;
const int N = 3e5 + 5;
const int mod = 1e9 + 7;
const ll oo = 1e18 + 69;
template <typename T1, typename T2> bool maxi(T1 &a, T2 b){if (a < b){a = b; return 1;} return 0;}
template <typename T1, typename T2> bool mini(T1 &a, T2 b){if (a > b){a = b; return 1;} return 0;}
int n;
int k;
int D;
int a[N];
int f[(int)7e3 + 2][(int)7e3 + 2];
deque <int> dq[(int)7e3 + 2];
vector <int> value;
void load(){
cin.tie(0)->sync_with_stdio(0);
if (fopen(name".inp", "r")){
freopen(name".inp", "r", stdin);
freopen(name".out", "w", stdout);
}
}
void input(){
cin >> n >> D;
for (int i = 1; i <= n; i++){
cin >> a[i];
}
}
void compress(){
for (int i = 1; i <= n; i++)
value.push_back(a[i]);
sort(value.begin(), value.end());
value.erase(unique(value.begin(), value.end()), value.end());
for (int i = 1; i <= n; i++)
a[i] = lower_bound(value.begin(), value.end(), a[i]) - value.begin() + 1;
k = (int)value.size();
}
namespace subtask3{
void solve(){
mem(f, -0x3f);
for (int i = 1; i <= n; i++){
f[i][a[i]] = 1;
for (int j = 1; j <= k; j++){
if (dq[j].size() && dq[j].front() < i - D) dq[j].pop_front();
if (dq[j].size()) maxi(f[i][max(a[i], j)], f[dq[j].front()][j] + (j < a[i]));
}
for (int j = 1; j <= k; j++){
while (dq[j].size() && f[dq[j].back()][j] <= f[i][j])
dq[j].pop_back();
dq[j].push_back(i);
}
}
int ans = 0;
for (int i = 1; i <= k; i++)
maxi(ans, f[n][i]);
cout << ans;
}
}
namespace subtask4{
stack <int> st;
void solve(){
st.push(n);
int ans = 1;
for (int i = n - 1; i >= 1; i--){
while (st.size() && a[st.top()] <= a[i]) st.pop();
st.push(i);
maxi(ans, st.size());
}
cout << ans;
}
}
namespace subtask5{
int b[N];
void solve(){
mem(b, 0x3f);
// f[0] = -mod;
int ans = 0;
for (int i = 1; i <= n; i++){
int id = lower_bound(b + 1, b + n + 1, a[i]) - b;
// if (i == n) cout << id;
b[id] = a[i];
maxi(ans, id);
}
cout << ans;
}
}
int main(){
load();
input();
compress();
if (n <= (int)7e3){
subtask3::solve();
return 0;
}
if (D == 1){
subtask4::solve();
return 0;
}
subtask5::solve();
}
Compilation message
Main.cpp: In instantiation of 'bool maxi(T1&, T2) [with T1 = int; T2 = long unsigned int]':
Main.cpp:85:32: required from here
Main.cpp:19:66: warning: comparison of integer expressions of different signedness: 'int' and 'long unsigned int' [-Wsign-compare]
19 | template <typename T1, typename T2> bool maxi(T1 &a, T2 b){if (a < b){a = b; return 1;} return 0;}
| ~~^~~
Main.cpp: In function 'void load()':
Main.cpp:33:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
33 | freopen(name".inp", "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:34:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
34 | freopen(name".out", "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
54 ms |
197968 KB |
Output is correct |
2 |
Correct |
25 ms |
197968 KB |
Output is correct |
3 |
Correct |
27 ms |
197976 KB |
Output is correct |
4 |
Correct |
25 ms |
197936 KB |
Output is correct |
5 |
Correct |
26 ms |
197968 KB |
Output is correct |
6 |
Correct |
24 ms |
197972 KB |
Output is correct |
7 |
Correct |
25 ms |
197964 KB |
Output is correct |
8 |
Correct |
25 ms |
197972 KB |
Output is correct |
9 |
Correct |
24 ms |
197980 KB |
Output is correct |
10 |
Correct |
25 ms |
197880 KB |
Output is correct |
11 |
Correct |
25 ms |
198024 KB |
Output is correct |
12 |
Correct |
24 ms |
197940 KB |
Output is correct |
13 |
Correct |
24 ms |
197980 KB |
Output is correct |
14 |
Correct |
26 ms |
198048 KB |
Output is correct |
15 |
Correct |
25 ms |
197980 KB |
Output is correct |
16 |
Correct |
25 ms |
197968 KB |
Output is correct |
17 |
Correct |
24 ms |
197972 KB |
Output is correct |
18 |
Correct |
24 ms |
197988 KB |
Output is correct |
19 |
Correct |
24 ms |
197936 KB |
Output is correct |
20 |
Correct |
24 ms |
197972 KB |
Output is correct |
21 |
Correct |
24 ms |
197968 KB |
Output is correct |
22 |
Correct |
24 ms |
197972 KB |
Output is correct |
23 |
Correct |
24 ms |
197972 KB |
Output is correct |
24 |
Correct |
25 ms |
197968 KB |
Output is correct |
25 |
Correct |
25 ms |
197980 KB |
Output is correct |
26 |
Correct |
24 ms |
197968 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
54 ms |
197968 KB |
Output is correct |
2 |
Correct |
25 ms |
197968 KB |
Output is correct |
3 |
Correct |
27 ms |
197976 KB |
Output is correct |
4 |
Correct |
25 ms |
197936 KB |
Output is correct |
5 |
Correct |
26 ms |
197968 KB |
Output is correct |
6 |
Correct |
24 ms |
197972 KB |
Output is correct |
7 |
Correct |
25 ms |
197964 KB |
Output is correct |
8 |
Correct |
25 ms |
197972 KB |
Output is correct |
9 |
Correct |
24 ms |
197980 KB |
Output is correct |
10 |
Correct |
25 ms |
197880 KB |
Output is correct |
11 |
Correct |
25 ms |
198024 KB |
Output is correct |
12 |
Correct |
24 ms |
197940 KB |
Output is correct |
13 |
Correct |
24 ms |
197980 KB |
Output is correct |
14 |
Correct |
26 ms |
198048 KB |
Output is correct |
15 |
Correct |
25 ms |
197980 KB |
Output is correct |
16 |
Correct |
25 ms |
197968 KB |
Output is correct |
17 |
Correct |
24 ms |
197972 KB |
Output is correct |
18 |
Correct |
24 ms |
197988 KB |
Output is correct |
19 |
Correct |
24 ms |
197936 KB |
Output is correct |
20 |
Correct |
24 ms |
197972 KB |
Output is correct |
21 |
Correct |
24 ms |
197968 KB |
Output is correct |
22 |
Correct |
24 ms |
197972 KB |
Output is correct |
23 |
Correct |
24 ms |
197972 KB |
Output is correct |
24 |
Correct |
25 ms |
197968 KB |
Output is correct |
25 |
Correct |
25 ms |
197980 KB |
Output is correct |
26 |
Correct |
24 ms |
197968 KB |
Output is correct |
27 |
Correct |
26 ms |
197972 KB |
Output is correct |
28 |
Correct |
26 ms |
197976 KB |
Output is correct |
29 |
Correct |
25 ms |
197936 KB |
Output is correct |
30 |
Correct |
26 ms |
197972 KB |
Output is correct |
31 |
Correct |
24 ms |
197972 KB |
Output is correct |
32 |
Correct |
26 ms |
197976 KB |
Output is correct |
33 |
Correct |
27 ms |
197908 KB |
Output is correct |
34 |
Correct |
26 ms |
197976 KB |
Output is correct |
35 |
Correct |
31 ms |
197980 KB |
Output is correct |
36 |
Correct |
27 ms |
197980 KB |
Output is correct |
37 |
Correct |
26 ms |
197876 KB |
Output is correct |
38 |
Correct |
26 ms |
197972 KB |
Output is correct |
39 |
Correct |
27 ms |
197908 KB |
Output is correct |
40 |
Correct |
26 ms |
197940 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
54 ms |
197968 KB |
Output is correct |
2 |
Correct |
25 ms |
197968 KB |
Output is correct |
3 |
Correct |
27 ms |
197976 KB |
Output is correct |
4 |
Correct |
25 ms |
197936 KB |
Output is correct |
5 |
Correct |
26 ms |
197968 KB |
Output is correct |
6 |
Correct |
24 ms |
197972 KB |
Output is correct |
7 |
Correct |
25 ms |
197964 KB |
Output is correct |
8 |
Correct |
25 ms |
197972 KB |
Output is correct |
9 |
Correct |
24 ms |
197980 KB |
Output is correct |
10 |
Correct |
25 ms |
197880 KB |
Output is correct |
11 |
Correct |
25 ms |
198024 KB |
Output is correct |
12 |
Correct |
24 ms |
197940 KB |
Output is correct |
13 |
Correct |
24 ms |
197980 KB |
Output is correct |
14 |
Correct |
26 ms |
198048 KB |
Output is correct |
15 |
Correct |
25 ms |
197980 KB |
Output is correct |
16 |
Correct |
25 ms |
197968 KB |
Output is correct |
17 |
Correct |
24 ms |
197972 KB |
Output is correct |
18 |
Correct |
24 ms |
197988 KB |
Output is correct |
19 |
Correct |
24 ms |
197936 KB |
Output is correct |
20 |
Correct |
24 ms |
197972 KB |
Output is correct |
21 |
Correct |
24 ms |
197968 KB |
Output is correct |
22 |
Correct |
24 ms |
197972 KB |
Output is correct |
23 |
Correct |
24 ms |
197972 KB |
Output is correct |
24 |
Correct |
25 ms |
197968 KB |
Output is correct |
25 |
Correct |
25 ms |
197980 KB |
Output is correct |
26 |
Correct |
24 ms |
197968 KB |
Output is correct |
27 |
Correct |
26 ms |
197972 KB |
Output is correct |
28 |
Correct |
26 ms |
197976 KB |
Output is correct |
29 |
Correct |
25 ms |
197936 KB |
Output is correct |
30 |
Correct |
26 ms |
197972 KB |
Output is correct |
31 |
Correct |
24 ms |
197972 KB |
Output is correct |
32 |
Correct |
26 ms |
197976 KB |
Output is correct |
33 |
Correct |
27 ms |
197908 KB |
Output is correct |
34 |
Correct |
26 ms |
197976 KB |
Output is correct |
35 |
Correct |
31 ms |
197980 KB |
Output is correct |
36 |
Correct |
27 ms |
197980 KB |
Output is correct |
37 |
Correct |
26 ms |
197876 KB |
Output is correct |
38 |
Correct |
26 ms |
197972 KB |
Output is correct |
39 |
Correct |
27 ms |
197908 KB |
Output is correct |
40 |
Correct |
26 ms |
197940 KB |
Output is correct |
41 |
Correct |
132 ms |
198204 KB |
Output is correct |
42 |
Correct |
610 ms |
198336 KB |
Output is correct |
43 |
Correct |
29 ms |
197980 KB |
Output is correct |
44 |
Correct |
230 ms |
198184 KB |
Output is correct |
45 |
Correct |
245 ms |
198192 KB |
Output is correct |
46 |
Correct |
646 ms |
198220 KB |
Output is correct |
47 |
Correct |
513 ms |
198228 KB |
Output is correct |
48 |
Correct |
536 ms |
198224 KB |
Output is correct |
49 |
Correct |
618 ms |
198124 KB |
Output is correct |
50 |
Correct |
632 ms |
198212 KB |
Output is correct |
51 |
Correct |
503 ms |
198200 KB |
Output is correct |
52 |
Correct |
567 ms |
197980 KB |
Output is correct |
53 |
Correct |
519 ms |
197980 KB |
Output is correct |
54 |
Correct |
505 ms |
198208 KB |
Output is correct |
55 |
Correct |
645 ms |
198224 KB |
Output is correct |
56 |
Correct |
625 ms |
198092 KB |
Output is correct |
57 |
Correct |
626 ms |
197980 KB |
Output is correct |
58 |
Correct |
520 ms |
198200 KB |
Output is correct |
59 |
Correct |
514 ms |
198204 KB |
Output is correct |
60 |
Correct |
537 ms |
198204 KB |
Output is correct |
61 |
Correct |
536 ms |
198196 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
35 ms |
11768 KB |
Output is correct |
2 |
Correct |
42 ms |
11516 KB |
Output is correct |
3 |
Correct |
53 ms |
11572 KB |
Output is correct |
4 |
Correct |
87 ms |
11740 KB |
Output is correct |
5 |
Correct |
70 ms |
11672 KB |
Output is correct |
6 |
Correct |
85 ms |
11716 KB |
Output is correct |
7 |
Correct |
61 ms |
11836 KB |
Output is correct |
8 |
Correct |
44 ms |
12024 KB |
Output is correct |
9 |
Correct |
48 ms |
11800 KB |
Output is correct |
10 |
Correct |
48 ms |
11724 KB |
Output is correct |
11 |
Correct |
72 ms |
11684 KB |
Output is correct |
12 |
Correct |
81 ms |
11720 KB |
Output is correct |
13 |
Correct |
70 ms |
11796 KB |
Output is correct |
14 |
Correct |
81 ms |
11720 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
38 ms |
11908 KB |
Output is correct |
2 |
Correct |
60 ms |
11720 KB |
Output is correct |
3 |
Correct |
80 ms |
11716 KB |
Output is correct |
4 |
Correct |
106 ms |
11676 KB |
Output is correct |
5 |
Correct |
96 ms |
11716 KB |
Output is correct |
6 |
Correct |
100 ms |
11720 KB |
Output is correct |
7 |
Correct |
57 ms |
11724 KB |
Output is correct |
8 |
Correct |
48 ms |
11724 KB |
Output is correct |
9 |
Correct |
62 ms |
11716 KB |
Output is correct |
10 |
Correct |
89 ms |
11716 KB |
Output is correct |
11 |
Correct |
95 ms |
11580 KB |
Output is correct |
12 |
Correct |
75 ms |
11776 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
54 ms |
197968 KB |
Output is correct |
2 |
Correct |
25 ms |
197968 KB |
Output is correct |
3 |
Correct |
27 ms |
197976 KB |
Output is correct |
4 |
Correct |
25 ms |
197936 KB |
Output is correct |
5 |
Correct |
26 ms |
197968 KB |
Output is correct |
6 |
Correct |
24 ms |
197972 KB |
Output is correct |
7 |
Correct |
25 ms |
197964 KB |
Output is correct |
8 |
Correct |
25 ms |
197972 KB |
Output is correct |
9 |
Correct |
24 ms |
197980 KB |
Output is correct |
10 |
Correct |
25 ms |
197880 KB |
Output is correct |
11 |
Correct |
25 ms |
198024 KB |
Output is correct |
12 |
Correct |
24 ms |
197940 KB |
Output is correct |
13 |
Correct |
24 ms |
197980 KB |
Output is correct |
14 |
Correct |
26 ms |
198048 KB |
Output is correct |
15 |
Correct |
25 ms |
197980 KB |
Output is correct |
16 |
Correct |
25 ms |
197968 KB |
Output is correct |
17 |
Correct |
24 ms |
197972 KB |
Output is correct |
18 |
Correct |
24 ms |
197988 KB |
Output is correct |
19 |
Correct |
24 ms |
197936 KB |
Output is correct |
20 |
Correct |
24 ms |
197972 KB |
Output is correct |
21 |
Correct |
24 ms |
197968 KB |
Output is correct |
22 |
Correct |
24 ms |
197972 KB |
Output is correct |
23 |
Correct |
24 ms |
197972 KB |
Output is correct |
24 |
Correct |
25 ms |
197968 KB |
Output is correct |
25 |
Correct |
25 ms |
197980 KB |
Output is correct |
26 |
Correct |
24 ms |
197968 KB |
Output is correct |
27 |
Correct |
26 ms |
197972 KB |
Output is correct |
28 |
Correct |
26 ms |
197976 KB |
Output is correct |
29 |
Correct |
25 ms |
197936 KB |
Output is correct |
30 |
Correct |
26 ms |
197972 KB |
Output is correct |
31 |
Correct |
24 ms |
197972 KB |
Output is correct |
32 |
Correct |
26 ms |
197976 KB |
Output is correct |
33 |
Correct |
27 ms |
197908 KB |
Output is correct |
34 |
Correct |
26 ms |
197976 KB |
Output is correct |
35 |
Correct |
31 ms |
197980 KB |
Output is correct |
36 |
Correct |
27 ms |
197980 KB |
Output is correct |
37 |
Correct |
26 ms |
197876 KB |
Output is correct |
38 |
Correct |
26 ms |
197972 KB |
Output is correct |
39 |
Correct |
27 ms |
197908 KB |
Output is correct |
40 |
Correct |
26 ms |
197940 KB |
Output is correct |
41 |
Correct |
132 ms |
198204 KB |
Output is correct |
42 |
Correct |
610 ms |
198336 KB |
Output is correct |
43 |
Correct |
29 ms |
197980 KB |
Output is correct |
44 |
Correct |
230 ms |
198184 KB |
Output is correct |
45 |
Correct |
245 ms |
198192 KB |
Output is correct |
46 |
Correct |
646 ms |
198220 KB |
Output is correct |
47 |
Correct |
513 ms |
198228 KB |
Output is correct |
48 |
Correct |
536 ms |
198224 KB |
Output is correct |
49 |
Correct |
618 ms |
198124 KB |
Output is correct |
50 |
Correct |
632 ms |
198212 KB |
Output is correct |
51 |
Correct |
503 ms |
198200 KB |
Output is correct |
52 |
Correct |
567 ms |
197980 KB |
Output is correct |
53 |
Correct |
519 ms |
197980 KB |
Output is correct |
54 |
Correct |
505 ms |
198208 KB |
Output is correct |
55 |
Correct |
645 ms |
198224 KB |
Output is correct |
56 |
Correct |
625 ms |
198092 KB |
Output is correct |
57 |
Correct |
626 ms |
197980 KB |
Output is correct |
58 |
Correct |
520 ms |
198200 KB |
Output is correct |
59 |
Correct |
514 ms |
198204 KB |
Output is correct |
60 |
Correct |
537 ms |
198204 KB |
Output is correct |
61 |
Correct |
536 ms |
198196 KB |
Output is correct |
62 |
Correct |
35 ms |
11768 KB |
Output is correct |
63 |
Correct |
42 ms |
11516 KB |
Output is correct |
64 |
Correct |
53 ms |
11572 KB |
Output is correct |
65 |
Correct |
87 ms |
11740 KB |
Output is correct |
66 |
Correct |
70 ms |
11672 KB |
Output is correct |
67 |
Correct |
85 ms |
11716 KB |
Output is correct |
68 |
Correct |
61 ms |
11836 KB |
Output is correct |
69 |
Correct |
44 ms |
12024 KB |
Output is correct |
70 |
Correct |
48 ms |
11800 KB |
Output is correct |
71 |
Correct |
48 ms |
11724 KB |
Output is correct |
72 |
Correct |
72 ms |
11684 KB |
Output is correct |
73 |
Correct |
81 ms |
11720 KB |
Output is correct |
74 |
Correct |
70 ms |
11796 KB |
Output is correct |
75 |
Correct |
81 ms |
11720 KB |
Output is correct |
76 |
Correct |
38 ms |
11908 KB |
Output is correct |
77 |
Correct |
60 ms |
11720 KB |
Output is correct |
78 |
Correct |
80 ms |
11716 KB |
Output is correct |
79 |
Correct |
106 ms |
11676 KB |
Output is correct |
80 |
Correct |
96 ms |
11716 KB |
Output is correct |
81 |
Correct |
100 ms |
11720 KB |
Output is correct |
82 |
Correct |
57 ms |
11724 KB |
Output is correct |
83 |
Correct |
48 ms |
11724 KB |
Output is correct |
84 |
Correct |
62 ms |
11716 KB |
Output is correct |
85 |
Correct |
89 ms |
11716 KB |
Output is correct |
86 |
Correct |
95 ms |
11580 KB |
Output is correct |
87 |
Correct |
75 ms |
11776 KB |
Output is correct |
88 |
Incorrect |
75 ms |
11728 KB |
Output isn't correct |
89 |
Halted |
0 ms |
0 KB |
- |