#include <bits/stdc++.h>
#define MAXN 2000007
using namespace std;
int a[MAXN],v[MAXN],seg[2][4*MAXN],dp[2][MAXN];
map<int,int> m;
void upd(int k,int l,int r,int val,int pos,int ind)
{
if(l==r) {seg[k][ind]=val; return;}
int s=(l+r)/2;
if(pos<=s) upd(k,l,s,val,pos,2*ind);
else upd(k,s+1,r,val,pos,2*ind+1);
seg[k][ind]=max(seg[k][2*ind],seg[k][2*ind+1]);
}
int nmax(int k,int l,int r,int lt,int rt,int ind)
{
if(l>rt || r<lt) return 0;
if(l>=lt && r<=rt) return seg[k][ind];
int s=(l+r)/2;
return max(nmax(k,l,s,lt,rt,2*ind),nmax(k,s+1,r,lt,rt,2*ind+1));
}
int binarna(int l,int r,int val)
{
if(l==r) return l+1;
int s=(l+r+1)/2;
if(v[s]>=val) return binarna(l,s-1,val);
return binarna(s,r,val);
}
int main()
{
int n,x;
scanf("%d%d",&n,&x);
for(int i=0;i<n;i++) scanf("%d",&a[i]);
for(int i=0;i<n;i++) v[i]=a[i];
sort(v,v+n);
for(int i=0;i<n;i++) m[v[i]]=i+1;
for(int i=0;i<n;i++)
{
dp[1][i]=max(nmax(1,0,n,0,m[a[i]]-1,1),nmax(0,0,n,0,binarna(0,n-1,a[i]+x),1))+1;
dp[0][i]=nmax(0,0,n,0,m[a[i]]-1,1)+1;
upd(0,0,n,dp[0][i],m[a[i]],1);
upd(1,0,n,dp[1][i],m[a[i]],1);
if(i>0) dp[1][i]=max(dp[1][i],dp[1][i-1]);
}
printf("%d",dp[1][n-1]);
return 0;
}
Compilation message
glo.cpp: In function 'int main()':
glo.cpp:31:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d",&n,&x);
~~~~~^~~~~~~~~~~~~~
glo.cpp:32:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
for(int i=0;i<n;i++) scanf("%d",&a[i]);
~~~~~^~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
376 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
376 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
3 ms |
376 KB |
Output is correct |
20 |
Correct |
3 ms |
504 KB |
Output is correct |
21 |
Correct |
3 ms |
376 KB |
Output is correct |
22 |
Correct |
3 ms |
376 KB |
Output is correct |
23 |
Correct |
2 ms |
504 KB |
Output is correct |
24 |
Correct |
2 ms |
376 KB |
Output is correct |
25 |
Correct |
3 ms |
376 KB |
Output is correct |
26 |
Correct |
2 ms |
376 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
650 ms |
19160 KB |
Output is correct |
2 |
Correct |
637 ms |
19024 KB |
Output is correct |
3 |
Correct |
624 ms |
19092 KB |
Output is correct |
4 |
Correct |
592 ms |
19064 KB |
Output is correct |
5 |
Correct |
253 ms |
11644 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
105 ms |
4984 KB |
Output is correct |
2 |
Correct |
105 ms |
5112 KB |
Output is correct |
3 |
Correct |
107 ms |
5112 KB |
Output is correct |
4 |
Correct |
49 ms |
3320 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
57 ms |
3576 KB |
Output is correct |
7 |
Correct |
90 ms |
4984 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
245 ms |
9684 KB |
Output is correct |
2 |
Correct |
245 ms |
9720 KB |
Output is correct |
3 |
Correct |
581 ms |
19144 KB |
Output is correct |
4 |
Correct |
211 ms |
11640 KB |
Output is correct |
5 |
Correct |
142 ms |
9268 KB |
Output is correct |
6 |
Correct |
269 ms |
17812 KB |
Output is correct |
7 |
Correct |
274 ms |
18296 KB |
Output is correct |
8 |
Correct |
169 ms |
9720 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
2 ms |
376 KB |
Output is correct |
6 |
Correct |
2 ms |
376 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
2 ms |
376 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
2 ms |
376 KB |
Output is correct |
11 |
Correct |
2 ms |
376 KB |
Output is correct |
12 |
Correct |
2 ms |
376 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
2 ms |
376 KB |
Output is correct |
15 |
Correct |
2 ms |
376 KB |
Output is correct |
16 |
Correct |
2 ms |
376 KB |
Output is correct |
17 |
Correct |
2 ms |
376 KB |
Output is correct |
18 |
Correct |
2 ms |
376 KB |
Output is correct |
19 |
Correct |
3 ms |
376 KB |
Output is correct |
20 |
Correct |
3 ms |
504 KB |
Output is correct |
21 |
Correct |
3 ms |
376 KB |
Output is correct |
22 |
Correct |
3 ms |
376 KB |
Output is correct |
23 |
Correct |
2 ms |
504 KB |
Output is correct |
24 |
Correct |
2 ms |
376 KB |
Output is correct |
25 |
Correct |
3 ms |
376 KB |
Output is correct |
26 |
Correct |
2 ms |
376 KB |
Output is correct |
27 |
Correct |
650 ms |
19160 KB |
Output is correct |
28 |
Correct |
637 ms |
19024 KB |
Output is correct |
29 |
Correct |
624 ms |
19092 KB |
Output is correct |
30 |
Correct |
592 ms |
19064 KB |
Output is correct |
31 |
Correct |
253 ms |
11644 KB |
Output is correct |
32 |
Correct |
105 ms |
4984 KB |
Output is correct |
33 |
Correct |
105 ms |
5112 KB |
Output is correct |
34 |
Correct |
107 ms |
5112 KB |
Output is correct |
35 |
Correct |
49 ms |
3320 KB |
Output is correct |
36 |
Correct |
2 ms |
376 KB |
Output is correct |
37 |
Correct |
57 ms |
3576 KB |
Output is correct |
38 |
Correct |
90 ms |
4984 KB |
Output is correct |
39 |
Correct |
245 ms |
9684 KB |
Output is correct |
40 |
Correct |
245 ms |
9720 KB |
Output is correct |
41 |
Correct |
581 ms |
19144 KB |
Output is correct |
42 |
Correct |
211 ms |
11640 KB |
Output is correct |
43 |
Correct |
142 ms |
9268 KB |
Output is correct |
44 |
Correct |
269 ms |
17812 KB |
Output is correct |
45 |
Correct |
274 ms |
18296 KB |
Output is correct |
46 |
Correct |
169 ms |
9720 KB |
Output is correct |
47 |
Correct |
252 ms |
9616 KB |
Output is correct |
48 |
Correct |
247 ms |
9720 KB |
Output is correct |
49 |
Correct |
676 ms |
19064 KB |
Output is correct |
50 |
Correct |
227 ms |
11640 KB |
Output is correct |
51 |
Correct |
207 ms |
12408 KB |
Output is correct |
52 |
Correct |
335 ms |
18384 KB |
Output is correct |
53 |
Correct |
293 ms |
18336 KB |
Output is correct |
54 |
Correct |
296 ms |
18952 KB |
Output is correct |
55 |
Correct |
499 ms |
19136 KB |
Output is correct |