#include<bits/stdc++.h>
using namespace std;
#define N 300005
int a[N],b[N],dp[N];
vector<int> s1,s2;
int main(){
int n,d,i,ans=0;
scanf("%d %d",&n,&d);
for(i=1;i<=n;i++)scanf("%d",&a[i]),b[i]=-a[i];
for(i=1;i<=n;i++){
int x=lower_bound(s1.begin(),s1.end(),a[i])-(s1.begin());
if(x==s1.size())s1.push_back(a[i]);
else s1[x]=a[i];
dp[i]=x+1;
}
for(i=n;i>0;i--){
int it=lower_bound(s2.begin(),s2.end(),b[i]+d)-(s2.begin());
ans=max(ans,dp[i]+it);
auto x=lower_bound(s2.begin(),s2.end(),b[i]);
if(x==s2.end())s2.push_back(b[i]);
else *x=b[i];
//printf("i=%d dp=%d it=%d\n",i,dp1[i-1],it);
}
printf("%d\n",ans);
return 0;
}
Compilation message
glo.cpp: In function 'int main()':
glo.cpp:14:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
14 | if(x==s1.size())s1.push_back(a[i]);
| ~^~~~~~~~~~~
glo.cpp:10:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
10 | scanf("%d %d",&n,&d);
| ~~~~~^~~~~~~~~~~~~~~
glo.cpp:11:27: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
11 | for(i=1;i<=n;i++)scanf("%d",&a[i]),b[i]=-a[i];
| ~~~~~^~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
0 ms |
204 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
0 ms |
204 KB |
Output is correct |
9 |
Correct |
0 ms |
204 KB |
Output is correct |
10 |
Correct |
0 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
204 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
0 ms |
204 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
0 ms |
204 KB |
Output is correct |
9 |
Correct |
0 ms |
204 KB |
Output is correct |
10 |
Correct |
0 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
204 KB |
Output is correct |
12 |
Correct |
1 ms |
204 KB |
Output is correct |
13 |
Correct |
1 ms |
204 KB |
Output is correct |
14 |
Correct |
0 ms |
204 KB |
Output is correct |
15 |
Correct |
0 ms |
204 KB |
Output is correct |
16 |
Correct |
0 ms |
204 KB |
Output is correct |
17 |
Correct |
0 ms |
204 KB |
Output is correct |
18 |
Correct |
0 ms |
204 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
0 ms |
204 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
0 ms |
204 KB |
Output is correct |
9 |
Correct |
0 ms |
204 KB |
Output is correct |
10 |
Correct |
0 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
204 KB |
Output is correct |
12 |
Correct |
1 ms |
204 KB |
Output is correct |
13 |
Correct |
1 ms |
204 KB |
Output is correct |
14 |
Correct |
0 ms |
204 KB |
Output is correct |
15 |
Correct |
0 ms |
204 KB |
Output is correct |
16 |
Correct |
0 ms |
204 KB |
Output is correct |
17 |
Correct |
0 ms |
204 KB |
Output is correct |
18 |
Correct |
0 ms |
204 KB |
Output is correct |
19 |
Correct |
1 ms |
204 KB |
Output is correct |
20 |
Correct |
1 ms |
204 KB |
Output is correct |
21 |
Correct |
1 ms |
332 KB |
Output is correct |
22 |
Correct |
1 ms |
332 KB |
Output is correct |
23 |
Correct |
1 ms |
332 KB |
Output is correct |
24 |
Correct |
1 ms |
332 KB |
Output is correct |
25 |
Correct |
1 ms |
332 KB |
Output is correct |
26 |
Correct |
1 ms |
332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
48 ms |
2564 KB |
Output is correct |
2 |
Correct |
46 ms |
2548 KB |
Output is correct |
3 |
Correct |
59 ms |
2684 KB |
Output is correct |
4 |
Correct |
51 ms |
2624 KB |
Output is correct |
5 |
Correct |
29 ms |
3716 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
11 ms |
892 KB |
Output is correct |
2 |
Correct |
11 ms |
844 KB |
Output is correct |
3 |
Correct |
12 ms |
844 KB |
Output is correct |
4 |
Correct |
7 ms |
1228 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
8 ms |
1112 KB |
Output is correct |
7 |
Correct |
10 ms |
844 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
21 ms |
1484 KB |
Output is correct |
2 |
Correct |
23 ms |
1416 KB |
Output is correct |
3 |
Correct |
52 ms |
2528 KB |
Output is correct |
4 |
Correct |
34 ms |
3800 KB |
Output is correct |
5 |
Correct |
21 ms |
1996 KB |
Output is correct |
6 |
Correct |
23 ms |
3652 KB |
Output is correct |
7 |
Correct |
28 ms |
3648 KB |
Output is correct |
8 |
Correct |
17 ms |
1384 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
0 ms |
204 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
0 ms |
204 KB |
Output is correct |
9 |
Correct |
0 ms |
204 KB |
Output is correct |
10 |
Correct |
0 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
204 KB |
Output is correct |
12 |
Correct |
1 ms |
204 KB |
Output is correct |
13 |
Correct |
1 ms |
204 KB |
Output is correct |
14 |
Correct |
0 ms |
204 KB |
Output is correct |
15 |
Correct |
0 ms |
204 KB |
Output is correct |
16 |
Correct |
0 ms |
204 KB |
Output is correct |
17 |
Correct |
0 ms |
204 KB |
Output is correct |
18 |
Correct |
0 ms |
204 KB |
Output is correct |
19 |
Correct |
1 ms |
204 KB |
Output is correct |
20 |
Correct |
1 ms |
204 KB |
Output is correct |
21 |
Correct |
1 ms |
332 KB |
Output is correct |
22 |
Correct |
1 ms |
332 KB |
Output is correct |
23 |
Correct |
1 ms |
332 KB |
Output is correct |
24 |
Correct |
1 ms |
332 KB |
Output is correct |
25 |
Correct |
1 ms |
332 KB |
Output is correct |
26 |
Correct |
1 ms |
332 KB |
Output is correct |
27 |
Correct |
48 ms |
2564 KB |
Output is correct |
28 |
Correct |
46 ms |
2548 KB |
Output is correct |
29 |
Correct |
59 ms |
2684 KB |
Output is correct |
30 |
Correct |
51 ms |
2624 KB |
Output is correct |
31 |
Correct |
29 ms |
3716 KB |
Output is correct |
32 |
Correct |
11 ms |
892 KB |
Output is correct |
33 |
Correct |
11 ms |
844 KB |
Output is correct |
34 |
Correct |
12 ms |
844 KB |
Output is correct |
35 |
Correct |
7 ms |
1228 KB |
Output is correct |
36 |
Correct |
0 ms |
204 KB |
Output is correct |
37 |
Correct |
8 ms |
1112 KB |
Output is correct |
38 |
Correct |
10 ms |
844 KB |
Output is correct |
39 |
Correct |
21 ms |
1484 KB |
Output is correct |
40 |
Correct |
23 ms |
1416 KB |
Output is correct |
41 |
Correct |
52 ms |
2528 KB |
Output is correct |
42 |
Correct |
34 ms |
3800 KB |
Output is correct |
43 |
Correct |
21 ms |
1996 KB |
Output is correct |
44 |
Correct |
23 ms |
3652 KB |
Output is correct |
45 |
Correct |
28 ms |
3648 KB |
Output is correct |
46 |
Correct |
17 ms |
1384 KB |
Output is correct |
47 |
Correct |
23 ms |
1612 KB |
Output is correct |
48 |
Correct |
23 ms |
1648 KB |
Output is correct |
49 |
Correct |
48 ms |
2832 KB |
Output is correct |
50 |
Correct |
30 ms |
4056 KB |
Output is correct |
51 |
Correct |
24 ms |
3356 KB |
Output is correct |
52 |
Correct |
29 ms |
3956 KB |
Output is correct |
53 |
Correct |
27 ms |
3956 KB |
Output is correct |
54 |
Correct |
31 ms |
3992 KB |
Output is correct |
55 |
Correct |
40 ms |
2884 KB |
Output is correct |