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Submission #940026

# Submission time Handle Problem Language Result Execution time Memory
940026 2024-03-07T04:10:28 Z vjudge1 Global Warming (CEOI18_glo) C++17
100 / 100
 97 ms 9528 KB 
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define fr first
#define sc second
#define ll long long
#define int long long
const int N=1e5+5;
void solve(){
	int n,x;cin>>n>>x;
	vector<int> a(n),pref(n+1),suf(n+1);
	for(int i=0;i<n;i++)
		cin>>a[i];
	vector<int> lis(n,1e10),lds(n,1e10);
	for(int i=n-1;i>=0;i--){
		int it=lower_bound(all(lds),-a[i])-lds.begin();
		if(lds[it]>-a[i])
			lds[it]=-a[i];
		suf[i]=it+1;
	}
	int ans=0;
	
	for(int i=0;i<n;i++){
		int It=lower_bound(all(lis),a[i]+x)-lis.begin();
		ans=max(ans,It+suf[i]);
		int it=lower_bound(all(lis),a[i])-lis.begin();
		if(lis[it]>a[i])
			lis[it]=a[i];
		pref[i]=it+1;
		
	}
	
	cout<<ans<<endl;
}
main(){
    int T=1;
    //cin>>T;
    while(T--){
        solve();
    }
}
/*
12 2
2 3 3 8 1 5 6 7 8 3 5 4
2 1
2 7
3 4
4 7
7 6
5 6
6 8
6 9
7 10
10 11
10 12
*/

Compilation message

glo.cpp:37:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   37 | main(){
      | ^~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Correct 1 ms 500 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Correct 1 ms 500 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Correct 1 ms 500 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 456 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 87 ms 8016 KB Output is correct
2 Correct 87 ms 8016 KB Output is correct
3 Correct 95 ms 8252 KB Output is correct
4 Correct 87 ms 8192 KB Output is correct
5 Correct 62 ms 8212 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 2396 KB Output is correct
2 Correct 26 ms 2396 KB Output is correct
3 Correct 23 ms 2396 KB Output is correct
4 Correct 17 ms 2384 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 16 ms 2648 KB Output is correct
7 Correct 20 ms 2904 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 43 ms 4176 KB Output is correct
2 Correct 41 ms 4956 KB Output is correct
3 Correct 86 ms 9528 KB Output is correct
4 Correct 68 ms 8976 KB Output is correct
5 Correct 36 ms 4868 KB Output is correct
6 Correct 60 ms 8532 KB Output is correct
7 Correct 74 ms 9092 KB Output is correct
8 Correct 39 ms 5108 KB Output is correct

Subtask #7
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Correct 1 ms 500 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 456 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 87 ms 8016 KB Output is correct
28 Correct 87 ms 8016 KB Output is correct
29 Correct 95 ms 8252 KB Output is correct
30 Correct 87 ms 8192 KB Output is correct
31 Correct 62 ms 8212 KB Output is correct
32 Correct 21 ms 2396 KB Output is correct
33 Correct 26 ms 2396 KB Output is correct
34 Correct 23 ms 2396 KB Output is correct
35 Correct 17 ms 2384 KB Output is correct
36 Correct 0 ms 344 KB Output is correct
37 Correct 16 ms 2648 KB Output is correct
38 Correct 20 ms 2904 KB Output is correct
39 Correct 43 ms 4176 KB Output is correct
40 Correct 41 ms 4956 KB Output is correct
41 Correct 86 ms 9528 KB Output is correct
42 Correct 68 ms 8976 KB Output is correct
43 Correct 36 ms 4868 KB Output is correct
44 Correct 60 ms 8532 KB Output is correct
45 Correct 74 ms 9092 KB Output is correct
46 Correct 39 ms 5108 KB Output is correct
47 Correct 43 ms 4948 KB Output is correct
48 Correct 44 ms 4996 KB Output is correct
49 Correct 97 ms 9476 KB Output is correct
50 Correct 65 ms 9208 KB Output is correct
51 Correct 52 ms 6988 KB Output is correct
52 Correct 67 ms 8788 KB Output is correct
53 Correct 59 ms 8788 KB Output is correct
54 Correct 78 ms 9404 KB Output is correct
55 Correct 80 ms 9296 KB Output is correct