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Submission #783673

# Submission time Handle Problem Language Result Execution time Memory
783673 2023-07-15T08:10:41 Z 8pete8 Global Warming (CEOI18_glo) C++14
100 / 100
 48 ms 7632 KB 
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define f first
#define s second
#define pb push_back
#define p push
#define pii pair<int,int>
#define ppii pair<int,pii>
#define fastio ios::sync_with_stdio(false);cin.tie(NULL);
#define set(x) memset(x,-1,sizeof(x));
#define int long long
const int mxn=1e9;
int n,x;
int32_t main(){
    fastio
    cin>>n>>x;
    vector<int>v(n);
    for(int i=0;i<n;i++)cin>>v[i];
    vector<int>lis,dp(n);
    for(int i=0;i<n;i++){
        int k;
        if(lis.empty()||lis.back()<v[i])lis.pb(v[i]),k=lis.size();
        else{
            auto it=lower_bound(lis.begin(),lis.end(),v[i]);
            (*it)=v[i];
            k=it-lis.begin()+1;
        }
        dp[i]=k;
    }
    vector<int>lis2;
    int ans=0;
    for(int i=n-1;i>=0;i--){
        int k;
        if(lis2.empty()||lis2.back()>v[i])k=lis2.size()+1;
        else{
            auto it=upper_bound(lis2.rbegin(),lis2.rend(),v[i]);
            k=lis2.rend()-it+1;
        }
        ans=max(ans,dp[i]+k-1);
        if(lis2.empty()||lis2.back()>v[i]+x)lis2.pb(v[i]+x);
        else{
            auto it=upper_bound(lis2.rbegin(),lis2.rend(),v[i]+x);
            it--;
            (*it)=v[i]+x;
        }
    }
    cout<<ans;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 328 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 3460 KB Output is correct
2 Correct 48 ms 3412 KB Output is correct
3 Correct 47 ms 3412 KB Output is correct
4 Correct 48 ms 3412 KB Output is correct
5 Correct 19 ms 5728 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 1108 KB Output is correct
2 Correct 12 ms 1132 KB Output is correct
3 Correct 14 ms 1120 KB Output is correct
4 Correct 5 ms 1624 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 6 ms 1872 KB Output is correct
7 Correct 9 ms 1608 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 1876 KB Output is correct
2 Correct 19 ms 1920 KB Output is correct
3 Correct 37 ms 3436 KB Output is correct
4 Correct 18 ms 5780 KB Output is correct
5 Correct 9 ms 3028 KB Output is correct
6 Correct 21 ms 5584 KB Output is correct
7 Correct 19 ms 5584 KB Output is correct
8 Correct 15 ms 1876 KB Output is correct

Subtask #7
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 328 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 48 ms 3460 KB Output is correct
28 Correct 48 ms 3412 KB Output is correct
29 Correct 47 ms 3412 KB Output is correct
30 Correct 48 ms 3412 KB Output is correct
31 Correct 19 ms 5728 KB Output is correct
32 Correct 11 ms 1108 KB Output is correct
33 Correct 12 ms 1132 KB Output is correct
34 Correct 14 ms 1120 KB Output is correct
35 Correct 5 ms 1624 KB Output is correct
36 Correct 0 ms 212 KB Output is correct
37 Correct 6 ms 1872 KB Output is correct
38 Correct 9 ms 1608 KB Output is correct
39 Correct 18 ms 1876 KB Output is correct
40 Correct 19 ms 1920 KB Output is correct
41 Correct 37 ms 3436 KB Output is correct
42 Correct 18 ms 5780 KB Output is correct
43 Correct 9 ms 3028 KB Output is correct
44 Correct 21 ms 5584 KB Output is correct
45 Correct 19 ms 5584 KB Output is correct
46 Correct 15 ms 1876 KB Output is correct
47 Correct 23 ms 2872 KB Output is correct
48 Correct 23 ms 2880 KB Output is correct
49 Correct 48 ms 5312 KB Output is correct
50 Correct 23 ms 6912 KB Output is correct
51 Correct 16 ms 5840 KB Output is correct
52 Correct 18 ms 6996 KB Output is correct
53 Correct 17 ms 7000 KB Output is correct
54 Correct 21 ms 7632 KB Output is correct
55 Correct 37 ms 5416 KB Output is correct