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Submission #873864

# Submission time Handle Problem Language Result Execution time Memory
873864 2023-11-16T02:03:14 Z 1075508020060209tc Hacker (BOI15_hac) C++14
100 / 100
 114 ms 26196 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
int n;
int ar[1000006];
int ps[1000006];
int pok[1000006];

int ok(int mi){
for(int i=1;i<=n+n;i++){
    pok[i]=0;
}
int len=(n+1)/2;
for(int i=len;i<=n+n;i++){
    pok[i]=0;
    if(ps[i]-ps[i-len]>=mi){
        pok[i]=1;
    }
}
for(int i=1;i<=n+n;i++){
    pok[i]+=pok[i-1];
}
for(int i=len;i<=n+n;i++){
    if(pok[i]-pok[i-len]==len){
        return 1;
    }
}
return 0;
}
int br[1000006];

signed main()
{
    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>ar[i];
        ar[i+n]=ar[i];
    }
    for(int i=1;i<=n+n;i++){
        ps[i]=ar[i]+ps[i-1];
    }
    int len=(n+1)/2;
    for(int i=len;i<=n+n;i++){
        br[i]=ps[i]-ps[i-len];
    }
    deque<int>dq;
    for(int i=len;i<=len+len-1;i++){
        while(dq.size()&&br[dq.front()]>=br[i]){dq.pop_front();}
        dq.push_front(i);
    }
    int ans=br[dq.back()];
    for(int i=len+len;i<=n+n;i++){
        if(dq.back()==i-len){dq.pop_back(); }
        while(dq.size()&&br[dq.front()]>=br[i]){dq.pop_front();}
        dq.push_front(i);
        ans=max(ans,br[dq.back()]);
        
    }
    cout<<ans<<endl;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2464 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 1 ms 2392 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 0 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 0 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2464 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 1 ms 2392 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 0 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 0 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2392 KB Output is correct
23 Correct 1 ms 2396 KB Output is correct
24 Correct 1 ms 2396 KB Output is correct
25 Correct 2 ms 2396 KB Output is correct
26 Correct 2 ms 2440 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct
29 Correct 1 ms 2396 KB Output is correct
30 Correct 1 ms 2652 KB Output is correct
31 Correct 1 ms 2652 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 2 ms 2652 KB Output is correct
4 Correct 16 ms 7364 KB Output is correct
5 Correct 36 ms 13676 KB Output is correct
6 Correct 48 ms 15552 KB Output is correct
7 Correct 63 ms 17596 KB Output is correct
8 Correct 98 ms 24268 KB Output is correct

Subtask #4
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 0 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2464 KB Output is correct
9 Correct 1 ms 2396 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 1 ms 2392 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 0 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 0 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2392 KB Output is correct
23 Correct 1 ms 2396 KB Output is correct
24 Correct 1 ms 2396 KB Output is correct
25 Correct 2 ms 2396 KB Output is correct
26 Correct 2 ms 2440 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct
29 Correct 1 ms 2396 KB Output is correct
30 Correct 1 ms 2652 KB Output is correct
31 Correct 1 ms 2652 KB Output is correct
32 Correct 1 ms 2392 KB Output is correct
33 Correct 1 ms 2396 KB Output is correct
34 Correct 2 ms 2652 KB Output is correct
35 Correct 16 ms 7364 KB Output is correct
36 Correct 36 ms 13676 KB Output is correct
37 Correct 48 ms 15552 KB Output is correct
38 Correct 63 ms 17596 KB Output is correct
39 Correct 98 ms 24268 KB Output is correct
40 Correct 4 ms 2648 KB Output is correct
41 Correct 4 ms 4956 KB Output is correct
42 Correct 7 ms 4956 KB Output is correct
43 Correct 39 ms 13504 KB Output is correct
44 Correct 96 ms 24252 KB Output is correct
45 Correct 18 ms 9564 KB Output is correct
46 Correct 62 ms 17596 KB Output is correct
47 Correct 98 ms 24144 KB Output is correct
48 Correct 114 ms 24244 KB Output is correct
49 Correct 79 ms 26196 KB Output is correct
50 Correct 80 ms 26192 KB Output is correct