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Submission #991316

# Submission time Handle Problem Language Result Execution time Memory
991316 2024-06-02T01:05:32 Z vjudge1 Feast (NOI19_feast) C++17
100 / 100
 103 ms 12172 KB 
#include<bits/stdc++.h>
#include<ext/numeric>
#include <ext/pb_ds/assoc_container.hpp> // Common file
#include <ext/pb_ds/tree_policy.hpp> // Including tree_order_statistics_node_update
#define Fast ios::sync_with_stdio(false),cin.tie(nullptr),cout.tie(nullptr)
using namespace std;
using namespace __gnu_cxx;
using namespace __gnu_pbds;
#define all(s) s.begin(),s.end()
#define rall(s) s.rbegin(),s.rend()
#define int long long
template<class T> using ordered_set = tree<T, null_type , less<T> ,rb_tree_tag , tree_order_statistics_node_update> ;
typedef long long ll;
const int N=3e5+3,LG=__lg(N)+2,M=21,MOD=998244353,inf=3e14;
pair<int,int> dp[2][N];
int v[N],n;
pair<int,int> sol(int mid) {
    dp[0][0] = {0, 0};
    dp[1][0] = {v[0] - mid, 1};

    for (int i = 1; i < n; i++) {
        dp[0][i] = max(dp[0][i - 1], dp[1][i - 1]);

        dp[1][i] =
                max(make_pair(dp[0][i - 1].first + v[i] - mid,
                              dp[0][i - 1].second + 1),
                    make_pair(dp[1][i - 1].first + v[i], dp[1][i - 1].second));
    }

    return max(dp[0][n - 1], dp[1][n - 1]);
}
void solve() {
    int k;
    cin>>n>>k;
    for (int i = 0; i <n ; ++i)
        cin>>v[i];
    int l=0,r=inf;
    while(r-l>1){
        int mid=l+(r-l)/2;
        if(sol(mid).second<k)
            r=mid;
        else l=mid;
    }
    cout<<sol(l).first+l*k<<'\n';
}
signed main() {
    Fast;
    int tc = 1;
    //cin >> tc;
    for (int i = 1; i <= tc; ++i) {
        // cout<<"Case #"<<i<<": ";
        solve();
    }
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 11856 KB Output is correct
2 Correct 47 ms 12112 KB Output is correct
3 Correct 48 ms 12172 KB Output is correct
4 Correct 47 ms 12112 KB Output is correct
5 Correct 50 ms 12124 KB Output is correct
6 Correct 45 ms 11908 KB Output is correct
7 Correct 46 ms 11856 KB Output is correct
8 Correct 47 ms 12124 KB Output is correct
9 Correct 45 ms 11868 KB Output is correct
10 Correct 46 ms 11868 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 40 ms 11868 KB Output is correct
2 Correct 40 ms 12124 KB Output is correct
3 Correct 39 ms 12048 KB Output is correct
4 Correct 40 ms 11868 KB Output is correct
5 Correct 45 ms 11864 KB Output is correct
6 Correct 42 ms 11868 KB Output is correct
7 Correct 40 ms 12120 KB Output is correct
8 Correct 46 ms 12124 KB Output is correct
9 Correct 47 ms 11868 KB Output is correct
10 Correct 39 ms 12120 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 12124 KB Output is correct
2 Correct 68 ms 11868 KB Output is correct
3 Correct 66 ms 12124 KB Output is correct
4 Correct 69 ms 11868 KB Output is correct
5 Correct 65 ms 12112 KB Output is correct
6 Correct 66 ms 12124 KB Output is correct
7 Correct 66 ms 12120 KB Output is correct
8 Correct 65 ms 12120 KB Output is correct
9 Correct 66 ms 12124 KB Output is correct
10 Correct 67 ms 12120 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4440 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 0 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4440 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 0 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 1 ms 4444 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4444 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 4440 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 0 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 4444 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 1 ms 4444 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4444 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct
21 Correct 1 ms 4440 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 1 ms 4444 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 1 ms 4444 KB Output is correct
26 Correct 2 ms 4580 KB Output is correct
27 Correct 1 ms 4444 KB Output is correct
28 Correct 1 ms 4444 KB Output is correct
29 Correct 1 ms 4580 KB Output is correct
30 Correct 1 ms 4444 KB Output is correct

Subtask #7
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 11856 KB Output is correct
2 Correct 47 ms 12112 KB Output is correct
3 Correct 48 ms 12172 KB Output is correct
4 Correct 47 ms 12112 KB Output is correct
5 Correct 50 ms 12124 KB Output is correct
6 Correct 45 ms 11908 KB Output is correct
7 Correct 46 ms 11856 KB Output is correct
8 Correct 47 ms 12124 KB Output is correct
9 Correct 45 ms 11868 KB Output is correct
10 Correct 46 ms 11868 KB Output is correct
11 Correct 40 ms 11868 KB Output is correct
12 Correct 40 ms 12124 KB Output is correct
13 Correct 39 ms 12048 KB Output is correct
14 Correct 40 ms 11868 KB Output is correct
15 Correct 45 ms 11864 KB Output is correct
16 Correct 42 ms 11868 KB Output is correct
17 Correct 40 ms 12120 KB Output is correct
18 Correct 46 ms 12124 KB Output is correct
19 Correct 47 ms 11868 KB Output is correct
20 Correct 39 ms 12120 KB Output is correct
21 Correct 67 ms 12124 KB Output is correct
22 Correct 68 ms 11868 KB Output is correct
23 Correct 66 ms 12124 KB Output is correct
24 Correct 69 ms 11868 KB Output is correct
25 Correct 65 ms 12112 KB Output is correct
26 Correct 66 ms 12124 KB Output is correct
27 Correct 66 ms 12120 KB Output is correct
28 Correct 65 ms 12120 KB Output is correct
29 Correct 66 ms 12124 KB Output is correct
30 Correct 67 ms 12120 KB Output is correct
31 Correct 1 ms 4444 KB Output is correct
32 Correct 1 ms 4444 KB Output is correct
33 Correct 1 ms 4444 KB Output is correct
34 Correct 1 ms 4444 KB Output is correct
35 Correct 1 ms 4440 KB Output is correct
36 Correct 1 ms 4444 KB Output is correct
37 Correct 1 ms 4444 KB Output is correct
38 Correct 0 ms 4444 KB Output is correct
39 Correct 1 ms 4444 KB Output is correct
40 Correct 1 ms 4444 KB Output is correct
41 Correct 1 ms 4444 KB Output is correct
42 Correct 1 ms 4444 KB Output is correct
43 Correct 1 ms 4444 KB Output is correct
44 Correct 1 ms 4444 KB Output is correct
45 Correct 1 ms 4444 KB Output is correct
46 Correct 1 ms 4444 KB Output is correct
47 Correct 1 ms 4444 KB Output is correct
48 Correct 1 ms 4444 KB Output is correct
49 Correct 1 ms 4444 KB Output is correct
50 Correct 1 ms 4444 KB Output is correct
51 Correct 1 ms 4440 KB Output is correct
52 Correct 1 ms 4444 KB Output is correct
53 Correct 1 ms 4444 KB Output is correct
54 Correct 1 ms 4444 KB Output is correct
55 Correct 1 ms 4444 KB Output is correct
56 Correct 2 ms 4580 KB Output is correct
57 Correct 1 ms 4444 KB Output is correct
58 Correct 1 ms 4444 KB Output is correct
59 Correct 1 ms 4580 KB Output is correct
60 Correct 1 ms 4444 KB Output is correct
61 Correct 94 ms 11868 KB Output is correct
62 Correct 97 ms 12124 KB Output is correct
63 Correct 79 ms 11868 KB Output is correct
64 Correct 96 ms 12124 KB Output is correct
65 Correct 100 ms 12116 KB Output is correct
66 Correct 103 ms 12124 KB Output is correct
67 Correct 100 ms 11856 KB Output is correct
68 Correct 68 ms 11904 KB Output is correct
69 Correct 75 ms 12048 KB Output is correct
70 Correct 65 ms 11856 KB Output is correct