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Submission #1048182

# Submission time Handle Problem Language Result Execution time Memory
1048182 2024-08-08T04:15:34 Z khanhtb Global Warming (CEOI18_glo) C++14
100 / 100
 40 ms 7128 KB 
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pll pair<ll,ll>
#define fi first
#define se second
const int maxN=2e5+5;
const ll inf=2e18;
int n,x,a[maxN+1],dp[maxN+1];
int main()
{
    //freopen("","r",stdin);
    //freopen("","w",stdout);
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin>>n>>x;
    for(int i=1;i<=n;i++)
    {
        cin>>a[i];
    }
    vector<ll> b(n+1,inf);
    b[0]=-inf;
    int mx=0;
    for(int i=1;i<=n;i++)
    {
        int k=lower_bound(b.begin(),b.end(),a[i])-b.begin();
        b[k]=a[i];
        dp[i]=k;
        mx=max(mx,k);
    }
    vector<ll> c(n+1,inf);
    c[0]=-inf;
    for(int i=n;i>=1;i--)
    {
        int k=lower_bound(c.begin(),c.end(),x-a[i])-c.begin();
        mx=max(mx,dp[i]+k);
        k=lower_bound(c.begin(),c.end(),-a[i])-c.begin();
        c[k]=-a[i];
    }
    cout<<mx-1;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 460 KB Output is correct
10 Correct 1 ms 344 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 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 460 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 600 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 468 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 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 460 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 600 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 468 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 0 ms 348 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 40 ms 6944 KB Output is correct
2 Correct 34 ms 6992 KB Output is correct
3 Correct 36 ms 7076 KB Output is correct
4 Correct 40 ms 6936 KB Output is correct
5 Correct 29 ms 6220 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 2136 KB Output is correct
2 Correct 8 ms 2128 KB Output is correct
3 Correct 8 ms 2140 KB Output is correct
4 Correct 6 ms 1864 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 6 ms 1940 KB Output is correct
7 Correct 7 ms 2140 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 3676 KB Output is correct
2 Correct 16 ms 3672 KB Output is correct
3 Correct 31 ms 7060 KB Output is correct
4 Correct 26 ms 6236 KB Output is correct
5 Correct 15 ms 3164 KB Output is correct
6 Correct 21 ms 5980 KB Output is correct
7 Correct 24 ms 6620 KB Output is correct
8 Correct 12 ms 3704 KB Output is correct

Subtask #7
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 460 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 600 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 468 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 0 ms 348 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 40 ms 6944 KB Output is correct
28 Correct 34 ms 6992 KB Output is correct
29 Correct 36 ms 7076 KB Output is correct
30 Correct 40 ms 6936 KB Output is correct
31 Correct 29 ms 6220 KB Output is correct
32 Correct 9 ms 2136 KB Output is correct
33 Correct 8 ms 2128 KB Output is correct
34 Correct 8 ms 2140 KB Output is correct
35 Correct 6 ms 1864 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 6 ms 1940 KB Output is correct
38 Correct 7 ms 2140 KB Output is correct
39 Correct 17 ms 3676 KB Output is correct
40 Correct 16 ms 3672 KB Output is correct
41 Correct 31 ms 7060 KB Output is correct
42 Correct 26 ms 6236 KB Output is correct
43 Correct 15 ms 3164 KB Output is correct
44 Correct 21 ms 5980 KB Output is correct
45 Correct 24 ms 6620 KB Output is correct
46 Correct 12 ms 3704 KB Output is correct
47 Correct 19 ms 3672 KB Output is correct
48 Correct 16 ms 3676 KB Output is correct
49 Correct 33 ms 7004 KB Output is correct
50 Correct 24 ms 6232 KB Output is correct
51 Correct 21 ms 4700 KB Output is correct
52 Correct 25 ms 6320 KB Output is correct
53 Correct 23 ms 6164 KB Output is correct
54 Correct 27 ms 7004 KB Output is correct
55 Correct 29 ms 7128 KB Output is correct