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Submission #980028

# Submission time Handle Problem Language Result Execution time Memory
980028 2024-05-11T19:28:17 Z ASN49K Feast (NOI19_feast) C++14
100 / 100
 88 ms 5832 KB 
#include <bits/stdc++.h>
 
using namespace std;
#define pb push_back
#define all(x) x.begin(),x.end()
#define int long long
const int inf=1e9;
using i64=long long;
int n;
vector<int>a;
pair<i64 , int> test(const int lambda)
{
    pair<i64,int>sol={0,0};
    pair<i64,int> last={-1e18,0};
    for(int i=0;i<n;i++)
    {
        if(sol.first-lambda > last.first || (sol.first-lambda == last.first && sol.second<last.second))
        {
            last={sol.first+a[i]-lambda, sol.second+1};
        }
        else
        {
            last.first+=a[i];
        }
 
        if(sol.first<last.first || (sol.first==last.first && sol.second>last.second))
        {
            sol=last;
        }
    }
    return sol;
}
main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    int k;
    cin>>n>>k;
    a.resize(n);
    for(int i=0;i<n;i++)
    {
        cin>>a[i];
    }
    int st=0,dr=1e12;
    i64 rez=-1e18;
    while(st<=dr)
    {
        int m=(st+dr)/2;
        auto xd=test(m);
        if(xd.second <= k)
        {
            dr=m-1;
            rez=xd.first+1LL*k*m;
        }
        else
        {
            st=m+1;
        }
    }
    cout<<rez;
    return 0;
}

Compilation message

feast.cpp:33:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   33 | main()
      | ^~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 2652 KB Output is correct
2 Correct 33 ms 2652 KB Output is correct
3 Correct 32 ms 2652 KB Output is correct
4 Correct 33 ms 2652 KB Output is correct
5 Correct 36 ms 2652 KB Output is correct
6 Correct 32 ms 2652 KB Output is correct
7 Correct 32 ms 2652 KB Output is correct
8 Correct 33 ms 2652 KB Output is correct
9 Correct 32 ms 2652 KB Output is correct
10 Correct 33 ms 2652 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 2648 KB Output is correct
2 Correct 29 ms 2648 KB Output is correct
3 Correct 27 ms 2904 KB Output is correct
4 Correct 26 ms 2652 KB Output is correct
5 Correct 32 ms 2648 KB Output is correct
6 Correct 27 ms 3672 KB Output is correct
7 Correct 27 ms 3928 KB Output is correct
8 Correct 39 ms 5720 KB Output is correct
9 Correct 41 ms 5388 KB Output is correct
10 Correct 26 ms 3932 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 57 ms 2652 KB Output is correct
2 Correct 55 ms 2652 KB Output is correct
3 Correct 61 ms 2648 KB Output is correct
4 Correct 62 ms 2648 KB Output is correct
5 Correct 55 ms 2652 KB Output is correct
6 Correct 56 ms 2664 KB Output is correct
7 Correct 56 ms 2652 KB Output is correct
8 Correct 55 ms 2652 KB Output is correct
9 Correct 61 ms 2652 KB Output is correct
10 Correct 57 ms 2652 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 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 344 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 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 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 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 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 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 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 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 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 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 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 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 476 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct

Subtask #7
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 2652 KB Output is correct
2 Correct 33 ms 2652 KB Output is correct
3 Correct 32 ms 2652 KB Output is correct
4 Correct 33 ms 2652 KB Output is correct
5 Correct 36 ms 2652 KB Output is correct
6 Correct 32 ms 2652 KB Output is correct
7 Correct 32 ms 2652 KB Output is correct
8 Correct 33 ms 2652 KB Output is correct
9 Correct 32 ms 2652 KB Output is correct
10 Correct 33 ms 2652 KB Output is correct
11 Correct 28 ms 2648 KB Output is correct
12 Correct 29 ms 2648 KB Output is correct
13 Correct 27 ms 2904 KB Output is correct
14 Correct 26 ms 2652 KB Output is correct
15 Correct 32 ms 2648 KB Output is correct
16 Correct 27 ms 3672 KB Output is correct
17 Correct 27 ms 3928 KB Output is correct
18 Correct 39 ms 5720 KB Output is correct
19 Correct 41 ms 5388 KB Output is correct
20 Correct 26 ms 3932 KB Output is correct
21 Correct 57 ms 2652 KB Output is correct
22 Correct 55 ms 2652 KB Output is correct
23 Correct 61 ms 2648 KB Output is correct
24 Correct 62 ms 2648 KB Output is correct
25 Correct 55 ms 2652 KB Output is correct
26 Correct 56 ms 2664 KB Output is correct
27 Correct 56 ms 2652 KB Output is correct
28 Correct 55 ms 2652 KB Output is correct
29 Correct 61 ms 2652 KB Output is correct
30 Correct 57 ms 2652 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 344 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 344 KB Output is correct
41 Correct 1 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 1 ms 344 KB Output is correct
52 Correct 1 ms 348 KB Output is correct
53 Correct 1 ms 348 KB Output is correct
54 Correct 1 ms 348 KB Output is correct
55 Correct 1 ms 348 KB Output is correct
56 Correct 1 ms 348 KB Output is correct
57 Correct 1 ms 476 KB Output is correct
58 Correct 1 ms 348 KB Output is correct
59 Correct 1 ms 348 KB Output is correct
60 Correct 1 ms 348 KB Output is correct
61 Correct 86 ms 5460 KB Output is correct
62 Correct 76 ms 5724 KB Output is correct
63 Correct 65 ms 5540 KB Output is correct
64 Correct 82 ms 5708 KB Output is correct
65 Correct 84 ms 5720 KB Output is correct
66 Correct 83 ms 5832 KB Output is correct
67 Correct 88 ms 5456 KB Output is correct
68 Correct 58 ms 5720 KB Output is correct
69 Correct 58 ms 5668 KB Output is correct
70 Correct 55 ms 5528 KB Output is correct