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Submission #1017560

# Submission time Handle Problem Language Result Execution time Memory
1017560 2024-07-09T08:52:03 Z vjudge1 Feast (NOI19_feast) C++17
100 / 100
 956 ms 24172 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
pair<int,int> solve(int l,int a[],int n){
    vector<vector<pair<int,int>>> DP(n,vector<pair<int,int>>(2));
    DP[0][0]={0,0};
    DP[0][1]={a[0]-l,1};
    for(int i=1;i<n;i++){
        DP[i][0]=max(DP[i-1][0],DP[i-1][1]);
        DP[i][1]=max(DP[i-1][1],{DP[i-1][0].first-l,DP[i-1][0].second+1});
        DP[i][1].first+=a[i];
    }
    return max(DP[n-1][0],DP[n-1][1]);
}
signed main() {
    int n,k;
    cin >> n >> k;
    int a[n];
    for(int i=0;i<n;i++){
        cin >> a[i];
    }
    int low=0,high=1e18;
    low--,high++;
    while(high-low>1){
        int mid=(high-low)/2+low;
        if(solve(mid,a,n).second>=k){
            low=mid;
        }
        else{
            high=mid;
        }
    }
    if(low==-1){
        low++;
    }
    cout << solve(low,a,n).first+low*k;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 829 ms 23212 KB Output is correct
2 Correct 840 ms 23620 KB Output is correct
3 Correct 832 ms 24172 KB Output is correct
4 Correct 823 ms 23780 KB Output is correct
5 Correct 869 ms 23660 KB Output is correct
6 Correct 802 ms 23216 KB Output is correct
7 Correct 853 ms 23216 KB Output is correct
8 Correct 803 ms 23700 KB Output is correct
9 Correct 896 ms 23292 KB Output is correct
10 Correct 832 ms 23748 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 784 ms 23236 KB Output is correct
2 Correct 824 ms 23888 KB Output is correct
3 Correct 814 ms 23396 KB Output is correct
4 Correct 820 ms 23572 KB Output is correct
5 Correct 935 ms 23268 KB Output is correct
6 Correct 885 ms 23316 KB Output is correct
7 Correct 867 ms 24084 KB Output is correct
8 Correct 891 ms 23816 KB Output is correct
9 Correct 797 ms 23208 KB Output is correct
10 Correct 797 ms 23804 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 831 ms 23704 KB Output is correct
2 Correct 855 ms 23376 KB Output is correct
3 Correct 835 ms 23592 KB Output is correct
4 Correct 828 ms 23560 KB Output is correct
5 Correct 949 ms 23708 KB Output is correct
6 Correct 881 ms 23736 KB Output is correct
7 Correct 912 ms 23820 KB Output is correct
8 Correct 927 ms 23612 KB Output is correct
9 Correct 878 ms 23924 KB Output is correct
10 Correct 956 ms 23840 KB Output is correct

Subtask #4
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 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct

Subtask #5
11.0 / 11.0

# 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 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 2 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 348 KB Output is correct

Subtask #6
20.0 / 20.0

# 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 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 2 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 4 ms 344 KB Output is correct
22 Correct 4 ms 348 KB Output is correct
23 Correct 6 ms 348 KB Output is correct
24 Correct 4 ms 348 KB Output is correct
25 Correct 4 ms 348 KB Output is correct
26 Correct 5 ms 348 KB Output is correct
27 Correct 5 ms 348 KB Output is correct
28 Correct 4 ms 580 KB Output is correct
29 Correct 4 ms 580 KB Output is correct
30 Correct 4 ms 348 KB Output is correct

Subtask #7
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 829 ms 23212 KB Output is correct
2 Correct 840 ms 23620 KB Output is correct
3 Correct 832 ms 24172 KB Output is correct
4 Correct 823 ms 23780 KB Output is correct
5 Correct 869 ms 23660 KB Output is correct
6 Correct 802 ms 23216 KB Output is correct
7 Correct 853 ms 23216 KB Output is correct
8 Correct 803 ms 23700 KB Output is correct
9 Correct 896 ms 23292 KB Output is correct
10 Correct 832 ms 23748 KB Output is correct
11 Correct 784 ms 23236 KB Output is correct
12 Correct 824 ms 23888 KB Output is correct
13 Correct 814 ms 23396 KB Output is correct
14 Correct 820 ms 23572 KB Output is correct
15 Correct 935 ms 23268 KB Output is correct
16 Correct 885 ms 23316 KB Output is correct
17 Correct 867 ms 24084 KB Output is correct
18 Correct 891 ms 23816 KB Output is correct
19 Correct 797 ms 23208 KB Output is correct
20 Correct 797 ms 23804 KB Output is correct
21 Correct 831 ms 23704 KB Output is correct
22 Correct 855 ms 23376 KB Output is correct
23 Correct 835 ms 23592 KB Output is correct
24 Correct 828 ms 23560 KB Output is correct
25 Correct 949 ms 23708 KB Output is correct
26 Correct 881 ms 23736 KB Output is correct
27 Correct 912 ms 23820 KB Output is correct
28 Correct 927 ms 23612 KB Output is correct
29 Correct 878 ms 23924 KB Output is correct
30 Correct 956 ms 23840 KB Output is correct
31 Correct 0 ms 348 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 348 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 1 ms 344 KB Output is correct
40 Correct 1 ms 344 KB Output is correct
41 Correct 1 ms 348 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 1 ms 348 KB Output is correct
44 Correct 1 ms 348 KB Output is correct
45 Correct 2 ms 348 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 1 ms 344 KB Output is correct
49 Correct 1 ms 344 KB Output is correct
50 Correct 1 ms 348 KB Output is correct
51 Correct 4 ms 344 KB Output is correct
52 Correct 4 ms 348 KB Output is correct
53 Correct 6 ms 348 KB Output is correct
54 Correct 4 ms 348 KB Output is correct
55 Correct 4 ms 348 KB Output is correct
56 Correct 5 ms 348 KB Output is correct
57 Correct 5 ms 348 KB Output is correct
58 Correct 4 ms 580 KB Output is correct
59 Correct 4 ms 580 KB Output is correct
60 Correct 4 ms 348 KB Output is correct
61 Correct 929 ms 23380 KB Output is correct
62 Correct 932 ms 23980 KB Output is correct
63 Correct 831 ms 23328 KB Output is correct
64 Correct 925 ms 23936 KB Output is correct
65 Correct 874 ms 23988 KB Output is correct
66 Correct 909 ms 23744 KB Output is correct
67 Correct 918 ms 23412 KB Output is correct
68 Correct 876 ms 23892 KB Output is correct
69 Correct 813 ms 23288 KB Output is correct
70 Correct 861 ms 23416 KB Output is correct