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Submission #969695

# Submission time Handle Problem Language Result Execution time Memory
969695 2024-04-25T13:17:05 Z vjudge1 Global Warming (CEOI18_glo) C++17
100 / 100
 44 ms 3808 KB 
#include<bits/stdc++.h>
using namespace std;
int arr[200007];
int pref[200007];
int main()
{
    cin.tie(nullptr)->ios::sync_with_stdio(0);

    int n,d;
    cin>>n>>d;
    for(int i=0;i<n;i++)cin>>arr[i];

    vector<int> dp;
    int ans=0;
    for(int i=0;i<n;i++)
    {
        int idx=lower_bound(dp.begin(),dp.end(),arr[i])-dp.begin();
        pref[i]=idx+1;
        if(idx==dp.size())dp.push_back(arr[i]);
        else dp[idx]=arr[i]; 
    }
    ans=dp.size();
    dp.clear();
    for(int i=n-1;i>=0;i--)
    {
        int idx=lower_bound(dp.begin(),dp.end(),-arr[i]+d)-dp.begin();
        ans=max(ans,pref[i]+idx);
        idx = lower_bound(dp.begin(),dp.end(),-arr[i])-dp.begin();
        if(idx==dp.size())dp.push_back(-arr[i]);
        else dp[idx]=-arr[i];
    }

    cout<<ans;
    return 0;
}

Compilation message

glo.cpp: In function 'int main()':
glo.cpp:19:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |         if(idx==dp.size())dp.push_back(arr[i]);
      |            ~~~^~~~~~~~~~~
glo.cpp:29:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |         if(idx==dp.size())dp.push_back(-arr[i]);
      |            ~~~^~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 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 1 ms 348 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 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 464 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 1 ms 344 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 1 ms 348 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 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 464 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 1 ms 344 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 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 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 1 ms 344 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 2388 KB Output is correct
2 Correct 44 ms 1872 KB Output is correct
3 Correct 43 ms 1884 KB Output is correct
4 Correct 42 ms 1884 KB Output is correct
5 Correct 20 ms 2520 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 860 KB Output is correct
2 Correct 11 ms 860 KB Output is correct
3 Correct 12 ms 860 KB Output is correct
4 Correct 6 ms 860 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 5 ms 1116 KB Output is correct
7 Correct 8 ms 1336 KB Output is correct

Subtask #6
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 1116 KB Output is correct
2 Correct 18 ms 1116 KB Output is correct
3 Correct 37 ms 1924 KB Output is correct
4 Correct 22 ms 2320 KB Output is correct
5 Correct 10 ms 2012 KB Output is correct
6 Correct 19 ms 3032 KB Output is correct
7 Correct 27 ms 3552 KB Output is correct
8 Correct 15 ms 1884 KB Output is correct

Subtask #7
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 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 464 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 1 ms 344 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 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 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 1 ms 344 KB Output is correct
27 Correct 44 ms 2388 KB Output is correct
28 Correct 44 ms 1872 KB Output is correct
29 Correct 43 ms 1884 KB Output is correct
30 Correct 42 ms 1884 KB Output is correct
31 Correct 20 ms 2520 KB Output is correct
32 Correct 10 ms 860 KB Output is correct
33 Correct 11 ms 860 KB Output is correct
34 Correct 12 ms 860 KB Output is correct
35 Correct 6 ms 860 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 5 ms 1116 KB Output is correct
38 Correct 8 ms 1336 KB Output is correct
39 Correct 18 ms 1116 KB Output is correct
40 Correct 18 ms 1116 KB Output is correct
41 Correct 37 ms 1924 KB Output is correct
42 Correct 22 ms 2320 KB Output is correct
43 Correct 10 ms 2012 KB Output is correct
44 Correct 19 ms 3032 KB Output is correct
45 Correct 27 ms 3552 KB Output is correct
46 Correct 15 ms 1884 KB Output is correct
47 Correct 22 ms 1860 KB Output is correct
48 Correct 21 ms 2028 KB Output is correct
49 Correct 44 ms 3164 KB Output is correct
50 Correct 21 ms 3292 KB Output is correct
51 Correct 19 ms 2784 KB Output is correct
52 Correct 22 ms 3184 KB Output is correct
53 Correct 22 ms 3080 KB Output is correct
54 Correct 23 ms 3808 KB Output is correct
55 Correct 38 ms 3164 KB Output is correct