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Submission #334175

# Submission time Handle Problem Language Result Execution time Memory
334175 2020-12-08T14:13:39 Z vipghn2003 Bigger segments (IZhO19_segments) C++14
100 / 100
 298 ms 74732 KB 
#include<bits/stdc++.h>
#define ll long long
#define fi first
#define se second
#define pii pair<int,int>
#define mp make_pair
using namespace std;

const int N=5e5+5;
int n;
ll a[N];
map<int,int>dp[N];

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cin>>n;
    for(int i=1;i<=n;i++)
    {
        cin>>a[i];
        a[i]+=a[i-1];
    }
    dp[1][0]=0;
    for(int i=1;i<n;i++)
    {
        while(dp[i].size()>2) dp[i].erase(dp[i].begin());
        for(auto&x:dp[i])
        {
            dp[i+1][x.fi]=max(dp[i+1][x.fi],x.se);
            int v=lower_bound(a+1,a+n+1,2*a[i]-a[x.se])-a;
            if(v<=n) dp[v][x.fi+1]=max(dp[v][x.fi+1],i);
        }
    }
    while(dp[n].size()>1) dp[n].erase(dp[n].begin());
    auto res=*dp[n].begin();
    cout<<res.fi+1;
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 23788 KB Output is correct
2 Correct 16 ms 23788 KB Output is correct
3 Correct 16 ms 23788 KB Output is correct
4 Correct 16 ms 23788 KB Output is correct
5 Correct 16 ms 23788 KB Output is correct
6 Correct 16 ms 23788 KB Output is correct
7 Correct 16 ms 23916 KB Output is correct
8 Correct 16 ms 23788 KB Output is correct
9 Correct 16 ms 23788 KB Output is correct
10 Correct 16 ms 23788 KB Output is correct
11 Correct 16 ms 23780 KB Output is correct
12 Correct 16 ms 23788 KB Output is correct
13 Correct 17 ms 23788 KB Output is correct
14 Correct 16 ms 23788 KB Output is correct
15 Correct 16 ms 23788 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 23788 KB Output is correct
2 Correct 16 ms 23788 KB Output is correct
3 Correct 16 ms 23788 KB Output is correct
4 Correct 16 ms 23788 KB Output is correct
5 Correct 16 ms 23788 KB Output is correct
6 Correct 16 ms 23788 KB Output is correct
7 Correct 16 ms 23916 KB Output is correct
8 Correct 16 ms 23788 KB Output is correct
9 Correct 16 ms 23788 KB Output is correct
10 Correct 16 ms 23788 KB Output is correct
11 Correct 16 ms 23780 KB Output is correct
12 Correct 16 ms 23788 KB Output is correct
13 Correct 17 ms 23788 KB Output is correct
14 Correct 16 ms 23788 KB Output is correct
15 Correct 16 ms 23788 KB Output is correct
16 Correct 16 ms 23788 KB Output is correct
17 Correct 16 ms 23916 KB Output is correct
18 Correct 17 ms 23916 KB Output is correct
19 Correct 18 ms 23916 KB Output is correct
20 Correct 16 ms 23916 KB Output is correct
21 Correct 16 ms 23916 KB Output is correct
22 Correct 16 ms 23916 KB Output is correct
23 Correct 16 ms 23936 KB Output is correct
24 Correct 16 ms 24044 KB Output is correct
25 Correct 19 ms 23916 KB Output is correct
26 Correct 19 ms 23916 KB Output is correct
27 Correct 16 ms 23916 KB Output is correct
28 Correct 19 ms 23916 KB Output is correct
29 Correct 17 ms 23884 KB Output is correct
30 Correct 18 ms 23916 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 23788 KB Output is correct
2 Correct 16 ms 23788 KB Output is correct
3 Correct 16 ms 23788 KB Output is correct
4 Correct 16 ms 23788 KB Output is correct
5 Correct 16 ms 23788 KB Output is correct
6 Correct 16 ms 23788 KB Output is correct
7 Correct 16 ms 23916 KB Output is correct
8 Correct 16 ms 23788 KB Output is correct
9 Correct 16 ms 23788 KB Output is correct
10 Correct 16 ms 23788 KB Output is correct
11 Correct 16 ms 23780 KB Output is correct
12 Correct 16 ms 23788 KB Output is correct
13 Correct 17 ms 23788 KB Output is correct
14 Correct 16 ms 23788 KB Output is correct
15 Correct 16 ms 23788 KB Output is correct
16 Correct 16 ms 23788 KB Output is correct
17 Correct 16 ms 23916 KB Output is correct
18 Correct 17 ms 23916 KB Output is correct
19 Correct 18 ms 23916 KB Output is correct
20 Correct 16 ms 23916 KB Output is correct
21 Correct 16 ms 23916 KB Output is correct
22 Correct 16 ms 23916 KB Output is correct
23 Correct 16 ms 23936 KB Output is correct
24 Correct 16 ms 24044 KB Output is correct
25 Correct 19 ms 23916 KB Output is correct
26 Correct 19 ms 23916 KB Output is correct
27 Correct 16 ms 23916 KB Output is correct
28 Correct 19 ms 23916 KB Output is correct
29 Correct 17 ms 23884 KB Output is correct
30 Correct 18 ms 23916 KB Output is correct
31 Correct 17 ms 24044 KB Output is correct
32 Correct 18 ms 24172 KB Output is correct
33 Correct 18 ms 24172 KB Output is correct
34 Correct 21 ms 24192 KB Output is correct
35 Correct 19 ms 24172 KB Output is correct
36 Correct 20 ms 24300 KB Output is correct
37 Correct 18 ms 24044 KB Output is correct
38 Correct 17 ms 24044 KB Output is correct
39 Correct 18 ms 24172 KB Output is correct
40 Correct 18 ms 24172 KB Output is correct
41 Correct 17 ms 24172 KB Output is correct
42 Correct 20 ms 24172 KB Output is correct
43 Correct 17 ms 24172 KB Output is correct
44 Correct 18 ms 24172 KB Output is correct
45 Correct 17 ms 24172 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 23788 KB Output is correct
2 Correct 16 ms 23788 KB Output is correct
3 Correct 16 ms 23788 KB Output is correct
4 Correct 16 ms 23788 KB Output is correct
5 Correct 16 ms 23788 KB Output is correct
6 Correct 16 ms 23788 KB Output is correct
7 Correct 16 ms 23916 KB Output is correct
8 Correct 16 ms 23788 KB Output is correct
9 Correct 16 ms 23788 KB Output is correct
10 Correct 16 ms 23788 KB Output is correct
11 Correct 16 ms 23780 KB Output is correct
12 Correct 16 ms 23788 KB Output is correct
13 Correct 17 ms 23788 KB Output is correct
14 Correct 16 ms 23788 KB Output is correct
15 Correct 16 ms 23788 KB Output is correct
16 Correct 16 ms 23788 KB Output is correct
17 Correct 16 ms 23916 KB Output is correct
18 Correct 17 ms 23916 KB Output is correct
19 Correct 18 ms 23916 KB Output is correct
20 Correct 16 ms 23916 KB Output is correct
21 Correct 16 ms 23916 KB Output is correct
22 Correct 16 ms 23916 KB Output is correct
23 Correct 16 ms 23936 KB Output is correct
24 Correct 16 ms 24044 KB Output is correct
25 Correct 19 ms 23916 KB Output is correct
26 Correct 19 ms 23916 KB Output is correct
27 Correct 16 ms 23916 KB Output is correct
28 Correct 19 ms 23916 KB Output is correct
29 Correct 17 ms 23884 KB Output is correct
30 Correct 18 ms 23916 KB Output is correct
31 Correct 17 ms 24044 KB Output is correct
32 Correct 18 ms 24172 KB Output is correct
33 Correct 18 ms 24172 KB Output is correct
34 Correct 21 ms 24192 KB Output is correct
35 Correct 19 ms 24172 KB Output is correct
36 Correct 20 ms 24300 KB Output is correct
37 Correct 18 ms 24044 KB Output is correct
38 Correct 17 ms 24044 KB Output is correct
39 Correct 18 ms 24172 KB Output is correct
40 Correct 18 ms 24172 KB Output is correct
41 Correct 17 ms 24172 KB Output is correct
42 Correct 20 ms 24172 KB Output is correct
43 Correct 17 ms 24172 KB Output is correct
44 Correct 18 ms 24172 KB Output is correct
45 Correct 17 ms 24172 KB Output is correct
46 Correct 35 ms 29292 KB Output is correct
47 Correct 59 ms 33772 KB Output is correct
48 Correct 72 ms 34028 KB Output is correct
49 Correct 69 ms 34028 KB Output is correct
50 Correct 65 ms 34028 KB Output is correct
51 Correct 62 ms 34028 KB Output is correct
52 Correct 40 ms 28908 KB Output is correct
53 Correct 30 ms 26860 KB Output is correct
54 Correct 58 ms 34028 KB Output is correct
55 Correct 63 ms 34028 KB Output is correct
56 Correct 64 ms 34028 KB Output is correct
57 Correct 58 ms 34028 KB Output is correct
58 Correct 60 ms 34028 KB Output is correct
59 Correct 65 ms 34060 KB Output is correct
60 Correct 62 ms 34028 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 23788 KB Output is correct
2 Correct 16 ms 23788 KB Output is correct
3 Correct 16 ms 23788 KB Output is correct
4 Correct 16 ms 23788 KB Output is correct
5 Correct 16 ms 23788 KB Output is correct
6 Correct 16 ms 23788 KB Output is correct
7 Correct 16 ms 23916 KB Output is correct
8 Correct 16 ms 23788 KB Output is correct
9 Correct 16 ms 23788 KB Output is correct
10 Correct 16 ms 23788 KB Output is correct
11 Correct 16 ms 23780 KB Output is correct
12 Correct 16 ms 23788 KB Output is correct
13 Correct 17 ms 23788 KB Output is correct
14 Correct 16 ms 23788 KB Output is correct
15 Correct 16 ms 23788 KB Output is correct
16 Correct 16 ms 23788 KB Output is correct
17 Correct 16 ms 23916 KB Output is correct
18 Correct 17 ms 23916 KB Output is correct
19 Correct 18 ms 23916 KB Output is correct
20 Correct 16 ms 23916 KB Output is correct
21 Correct 16 ms 23916 KB Output is correct
22 Correct 16 ms 23916 KB Output is correct
23 Correct 16 ms 23936 KB Output is correct
24 Correct 16 ms 24044 KB Output is correct
25 Correct 19 ms 23916 KB Output is correct
26 Correct 19 ms 23916 KB Output is correct
27 Correct 16 ms 23916 KB Output is correct
28 Correct 19 ms 23916 KB Output is correct
29 Correct 17 ms 23884 KB Output is correct
30 Correct 18 ms 23916 KB Output is correct
31 Correct 17 ms 24044 KB Output is correct
32 Correct 18 ms 24172 KB Output is correct
33 Correct 18 ms 24172 KB Output is correct
34 Correct 21 ms 24192 KB Output is correct
35 Correct 19 ms 24172 KB Output is correct
36 Correct 20 ms 24300 KB Output is correct
37 Correct 18 ms 24044 KB Output is correct
38 Correct 17 ms 24044 KB Output is correct
39 Correct 18 ms 24172 KB Output is correct
40 Correct 18 ms 24172 KB Output is correct
41 Correct 17 ms 24172 KB Output is correct
42 Correct 20 ms 24172 KB Output is correct
43 Correct 17 ms 24172 KB Output is correct
44 Correct 18 ms 24172 KB Output is correct
45 Correct 17 ms 24172 KB Output is correct
46 Correct 35 ms 29292 KB Output is correct
47 Correct 59 ms 33772 KB Output is correct
48 Correct 72 ms 34028 KB Output is correct
49 Correct 69 ms 34028 KB Output is correct
50 Correct 65 ms 34028 KB Output is correct
51 Correct 62 ms 34028 KB Output is correct
52 Correct 40 ms 28908 KB Output is correct
53 Correct 30 ms 26860 KB Output is correct
54 Correct 58 ms 34028 KB Output is correct
55 Correct 63 ms 34028 KB Output is correct
56 Correct 64 ms 34028 KB Output is correct
57 Correct 58 ms 34028 KB Output is correct
58 Correct 60 ms 34028 KB Output is correct
59 Correct 65 ms 34060 KB Output is correct
60 Correct 62 ms 34028 KB Output is correct
61 Correct 113 ms 51180 KB Output is correct
62 Correct 153 ms 62960 KB Output is correct
63 Correct 236 ms 72412 KB Output is correct
64 Correct 298 ms 74692 KB Output is correct
65 Correct 270 ms 74732 KB Output is correct
66 Correct 254 ms 74732 KB Output is correct
67 Correct 210 ms 64520 KB Output is correct
68 Correct 109 ms 44140 KB Output is correct
69 Correct 229 ms 74732 KB Output is correct
70 Correct 245 ms 74732 KB Output is correct
71 Correct 250 ms 74732 KB Output is correct
72 Correct 235 ms 74732 KB Output is correct
73 Correct 257 ms 74732 KB Output is correct
74 Correct 265 ms 74732 KB Output is correct
75 Correct 254 ms 74732 KB Output is correct