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Submission #935823

# Submission time Handle Problem Language Result Execution time Memory
935823 2024-02-29T15:20:25 Z imarn Feast (NOI19_feast) C++14
100 / 100
 108 ms 15440 KB 
#include<bits/stdc++.h>
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define f first
#define s second
#define pb push_back
#define all(x) x.begin(),x.end()
#define vi vector<int>
#define vvi vector<vi>
#define vp vector<pii>
using namespace std;
const int N=3e5+5;
ll a[N]{0};
pll dp[N];
pll mx[N];
pll solve(ll x,int n){
    dp[0]=mx[0]={0,0};
    for(int i=1;i<=n;i++){
        dp[i] = max(dp[i-1],{mx[i-1].f+a[i]-x,mx[i-1].s-1});
        mx[i] = max(mx[i-1],{dp[i].f-a[i],dp[i].s});
    }return dp[n];
}
int main(){
    ios_base::sync_with_stdio(0);cin.tie(0);
    int n,k;cin>>n>>k;
    for(int i=1;i<=n;i++)cin>>a[i],a[i]+=a[i-1];
    ll l=0,r=1e12;
    while(l<r){
        ll m=(l+r)>>1;
        if(-solve(m,n).s<=k)r=m;
        else l=m+1;
    }
    cout<<solve(l,n).f+l*k;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 54 ms 11860 KB Output is correct
2 Correct 58 ms 12152 KB Output is correct
3 Correct 60 ms 12124 KB Output is correct
4 Correct 56 ms 12164 KB Output is correct
5 Correct 55 ms 12112 KB Output is correct
6 Correct 54 ms 12376 KB Output is correct
7 Correct 55 ms 12124 KB Output is correct
8 Correct 56 ms 12152 KB Output is correct
9 Correct 67 ms 12124 KB Output is correct
10 Correct 58 ms 12112 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 47 ms 12124 KB Output is correct
2 Correct 48 ms 12124 KB Output is correct
3 Correct 46 ms 12124 KB Output is correct
4 Correct 48 ms 12124 KB Output is correct
5 Correct 56 ms 14676 KB Output is correct
6 Correct 47 ms 13148 KB Output is correct
7 Correct 48 ms 13320 KB Output is correct
8 Correct 56 ms 14936 KB Output is correct
9 Correct 55 ms 14676 KB Output is correct
10 Correct 48 ms 13144 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 66 ms 12120 KB Output is correct
2 Correct 67 ms 12124 KB Output is correct
3 Correct 68 ms 12112 KB Output is correct
4 Correct 66 ms 12120 KB Output is correct
5 Correct 67 ms 12072 KB Output is correct
6 Correct 67 ms 12112 KB Output is correct
7 Correct 67 ms 12112 KB Output is correct
8 Correct 66 ms 12140 KB Output is correct
9 Correct 67 ms 12124 KB Output is correct
10 Correct 69 ms 12188 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 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 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 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 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 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 1 ms 4444 KB Output is correct
8 Correct 1 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 4444 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 1 ms 4596 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 4444 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 54 ms 11860 KB Output is correct
2 Correct 58 ms 12152 KB Output is correct
3 Correct 60 ms 12124 KB Output is correct
4 Correct 56 ms 12164 KB Output is correct
5 Correct 55 ms 12112 KB Output is correct
6 Correct 54 ms 12376 KB Output is correct
7 Correct 55 ms 12124 KB Output is correct
8 Correct 56 ms 12152 KB Output is correct
9 Correct 67 ms 12124 KB Output is correct
10 Correct 58 ms 12112 KB Output is correct
11 Correct 47 ms 12124 KB Output is correct
12 Correct 48 ms 12124 KB Output is correct
13 Correct 46 ms 12124 KB Output is correct
14 Correct 48 ms 12124 KB Output is correct
15 Correct 56 ms 14676 KB Output is correct
16 Correct 47 ms 13148 KB Output is correct
17 Correct 48 ms 13320 KB Output is correct
18 Correct 56 ms 14936 KB Output is correct
19 Correct 55 ms 14676 KB Output is correct
20 Correct 48 ms 13144 KB Output is correct
21 Correct 66 ms 12120 KB Output is correct
22 Correct 67 ms 12124 KB Output is correct
23 Correct 68 ms 12112 KB Output is correct
24 Correct 66 ms 12120 KB Output is correct
25 Correct 67 ms 12072 KB Output is correct
26 Correct 67 ms 12112 KB Output is correct
27 Correct 67 ms 12112 KB Output is correct
28 Correct 66 ms 12140 KB Output is correct
29 Correct 67 ms 12124 KB Output is correct
30 Correct 69 ms 12188 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 4444 KB Output is correct
36 Correct 1 ms 4444 KB Output is correct
37 Correct 1 ms 4444 KB Output is correct
38 Correct 1 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 4444 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 1 ms 4596 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 4444 KB Output is correct
60 Correct 1 ms 4444 KB Output is correct
61 Correct 106 ms 15104 KB Output is correct
62 Correct 105 ms 15428 KB Output is correct
63 Correct 79 ms 14928 KB Output is correct
64 Correct 104 ms 15188 KB Output is correct
65 Correct 108 ms 15440 KB Output is correct
66 Correct 106 ms 14932 KB Output is correct
67 Correct 104 ms 14924 KB Output is correct
68 Correct 70 ms 15204 KB Output is correct
69 Correct 70 ms 14940 KB Output is correct
70 Correct 70 ms 14916 KB Output is correct