#include<bits/stdc++.h>
#define meio ((i+j)>>1)
using namespace std ;
const int maxn = 2e5 + 5 ;
const int MAX = 2e5 + 5 ;
const int lmt = 2e9 + 5 ;
int n, x, v[maxn], suf[maxn] ;
vector<int> e, d, mx ;
struct SEG{
int node(){
e.push_back(0), d.push_back(0), mx.push_back(0) ;
return max(0, (int)d.size() - 1) ;
}
void upd(int no, int i, int j, int pos, int val){
if(!no) return ;
if(i == j){
mx[no] = max(val, mx[no]) ; return ;
}
if(pos <= meio){
if(!e[no]){
int aux = node() ;
e[no] = aux ;
}
upd(e[no], i, meio, pos, val) ;
}
else{
if(!d[no]){
int aux = node() ;
d[no] = aux ;
}
upd(d[no], meio + 1, j, pos, val) ;
}
mx[no] = max(mx[e[no]], mx[d[no]]) ;
}
int query(int no, int i, int j, int l, int r){
if(!no || l > j || r < i) return 0 ;
if(r >= j && l <= i) return mx[no] ;
return max(query(e[no], i, meio, l, r), query(d[no], meio + 1, j, l, r)) ;
}
} Seg ;
int main(){
ios_base::sync_with_stdio(false) ; cin.tie(NULL) ;
cin >> n >> x ;
for(int i = 1 ; i <= n ; i++){
cin >> v[i] ;
v[i]++ ;
}
Seg.node() ; Seg.node() ;
for(int i = n ; i > 0 ; i--){
int mx = Seg.query(1, 1, lmt, v[i] + 1, lmt) ;
Seg.upd(1, 1, lmt, v[i], mx + 1) ;
suf[i] = mx + 1 ;
}
// for(int i = 1 ; i <= n ; i++) cout << suf[i] << " " ;
// cout << "\n" ;
int ans = Seg.query(1, 1, lmt, 1, lmt) ;
e.clear() ; d.clear() ; mx.clear() ;
Seg.node() ; Seg.node() ;
for(int i = 1 ; i <= n ; i++){
int val = Seg.query(1, 1, lmt, 1, v[i] - 1) ;
int valor = Seg.query(1, 1, lmt, 1, v[i] + x - 1) ;
ans = max(ans, suf[i] + valor) ;
Seg.upd(1, 1, lmt, v[i], val + 1) ;
}
cout << ans << "\n" ;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
224 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
328 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
224 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
328 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 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 |
324 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
1 ms |
324 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
224 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
328 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 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 |
324 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
1 ms |
324 KB |
Output is correct |
19 |
Correct |
2 ms |
724 KB |
Output is correct |
20 |
Correct |
2 ms |
724 KB |
Output is correct |
21 |
Correct |
2 ms |
720 KB |
Output is correct |
22 |
Correct |
2 ms |
724 KB |
Output is correct |
23 |
Correct |
2 ms |
468 KB |
Output is correct |
24 |
Correct |
1 ms |
468 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
2 ms |
340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
456 ms |
36632 KB |
Output is correct |
2 |
Correct |
449 ms |
36612 KB |
Output is correct |
3 |
Correct |
457 ms |
36632 KB |
Output is correct |
4 |
Correct |
467 ms |
36808 KB |
Output is correct |
5 |
Correct |
213 ms |
20076 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
82 ms |
10368 KB |
Output is correct |
2 |
Correct |
108 ms |
10384 KB |
Output is correct |
3 |
Correct |
87 ms |
10348 KB |
Output is correct |
4 |
Correct |
57 ms |
5928 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
51 ms |
2112 KB |
Output is correct |
7 |
Correct |
67 ms |
9612 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
183 ms |
19236 KB |
Output is correct |
2 |
Correct |
173 ms |
19084 KB |
Output is correct |
3 |
Correct |
400 ms |
36616 KB |
Output is correct |
4 |
Correct |
191 ms |
20096 KB |
Output is correct |
5 |
Correct |
90 ms |
4068 KB |
Output is correct |
6 |
Correct |
179 ms |
7568 KB |
Output is correct |
7 |
Correct |
179 ms |
8228 KB |
Output is correct |
8 |
Correct |
117 ms |
14316 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
0 ms |
224 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
328 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
212 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 |
324 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
0 ms |
212 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
1 ms |
324 KB |
Output is correct |
19 |
Correct |
2 ms |
724 KB |
Output is correct |
20 |
Correct |
2 ms |
724 KB |
Output is correct |
21 |
Correct |
2 ms |
720 KB |
Output is correct |
22 |
Correct |
2 ms |
724 KB |
Output is correct |
23 |
Correct |
2 ms |
468 KB |
Output is correct |
24 |
Correct |
1 ms |
468 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
2 ms |
340 KB |
Output is correct |
27 |
Correct |
456 ms |
36632 KB |
Output is correct |
28 |
Correct |
449 ms |
36612 KB |
Output is correct |
29 |
Correct |
457 ms |
36632 KB |
Output is correct |
30 |
Correct |
467 ms |
36808 KB |
Output is correct |
31 |
Correct |
213 ms |
20076 KB |
Output is correct |
32 |
Correct |
82 ms |
10368 KB |
Output is correct |
33 |
Correct |
108 ms |
10384 KB |
Output is correct |
34 |
Correct |
87 ms |
10348 KB |
Output is correct |
35 |
Correct |
57 ms |
5928 KB |
Output is correct |
36 |
Correct |
0 ms |
212 KB |
Output is correct |
37 |
Correct |
51 ms |
2112 KB |
Output is correct |
38 |
Correct |
67 ms |
9612 KB |
Output is correct |
39 |
Correct |
183 ms |
19236 KB |
Output is correct |
40 |
Correct |
173 ms |
19084 KB |
Output is correct |
41 |
Correct |
400 ms |
36616 KB |
Output is correct |
42 |
Correct |
191 ms |
20096 KB |
Output is correct |
43 |
Correct |
90 ms |
4068 KB |
Output is correct |
44 |
Correct |
179 ms |
7568 KB |
Output is correct |
45 |
Correct |
179 ms |
8228 KB |
Output is correct |
46 |
Correct |
117 ms |
14316 KB |
Output is correct |
47 |
Correct |
202 ms |
19116 KB |
Output is correct |
48 |
Correct |
202 ms |
19024 KB |
Output is correct |
49 |
Correct |
438 ms |
36536 KB |
Output is correct |
50 |
Correct |
271 ms |
20080 KB |
Output is correct |
51 |
Correct |
136 ms |
4728 KB |
Output is correct |
52 |
Correct |
198 ms |
7972 KB |
Output is correct |
53 |
Correct |
180 ms |
7968 KB |
Output is correct |
54 |
Correct |
177 ms |
8588 KB |
Output is correct |
55 |
Correct |
344 ms |
26564 KB |
Output is correct |