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Submission #1099455

# Submission time Handle Problem Language Result Execution time Memory
1099455 2024-10-11T10:10:51 Z alexander707070 Tortoise (CEOI21_tortoise) C++14
48 / 100
 1834 ms 524288 KB 
#include<bits/stdc++.h>
#define MAXN 5007
using namespace std;

int n,a[MAXN];
int dist[MAXN],last,sum,nxt[MAXN];

int dp[MAXN][2*MAXN][2];
bool li[MAXN][2*MAXN][2];

int ff(int pos,int tim,int c){
    if(tim>2*n or pos>n)return 0;
    return dp[pos][tim][c];
}

struct Fenwick{
    int fenwick[MAXN];

    void update(int x,int val){
        while(x<=n){
            fenwick[x]=max(fenwick[x],val);
            x+=(x & (-x));
        }
    }

    int getmax(int x){
        int res=0;
        while(x>=1){
            res=max(res,fenwick[x]);
            x-=(x & (-x));
        }
        return res;
    }
};

Fenwick fen[3*MAXN];

void calcdp(){
    for(int pos=n;pos>=1;pos--){
        for(int tim=2*n;tim>=0;tim--){
            for(int c=1;c>=0;c--){
                
                if(c==1){
                    if(nxt[pos]==2*n)dp[pos][tim][c]=0;
                    else{
                        if(tim+2*nxt[pos]-pos>3*n)dp[pos][tim][c]=1;
                        else dp[pos][tim][c]=fen[tim+2*nxt[pos]-pos].getmax(nxt[pos])+1;
                    }
                }else{
                    if(a[pos]>0){
                        if(tim<=2*(pos-1))dp[pos][tim][c]=max(dp[pos][tim][c],ff(pos,tim,1));

                        for(int s=0;tim+s*2*dist[pos]<=2*(pos-1) and s+1<=a[pos];s++){
                            dp[pos][tim][c]=max(dp[pos][tim][c],ff(pos+1,tim+(s+1)*2*dist[pos]+1,0)+s+1);

                            if(s+1<a[pos] and tim+2*(s+1)*dist[pos]<=2*(pos-1))dp[pos][tim][c]=max(dp[pos][tim][c], ff(pos,tim+(s+1)*2*dist[pos],1)+s+1);
                        }
                    }

                    if(pos<n)dp[pos][tim][c]=max(dp[pos][tim][c],ff(pos+1,tim+1,c));
                }
            }
        }

        for(int tim=2*n;tim>=0;tim--){
            fen[pos+tim].update(pos,dp[pos][tim][0]);
        }
    }
}

int main(){

    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>a[i];
        dist[i]=n;

        if(a[i]>=0)sum+=a[i];
    }

    last=-n;
    for(int i=1;i<=n;i++){
        if(a[i]==-1)last=i;
        dist[i]=min(dist[i],i-last);
    }

    last=2*n;
    for(int i=n;i>=1;i--){
        if(a[i]==-1)last=i;
        dist[i]=min(dist[i],last-i);
        
        nxt[i]=last;
    }

    calcdp();
    cout<<sum-dp[1][0][0]<<"\n";
 
	return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 604 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 0 ms 604 KB Output is correct
10 Correct 0 ms 604 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 0 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 0 ms 604 KB Output is correct
17 Correct 0 ms 604 KB Output is correct
18 Correct 0 ms 604 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 1 ms 604 KB Output is correct
21 Correct 1 ms 604 KB Output is correct
22 Correct 0 ms 604 KB Output is correct
23 Correct 0 ms 604 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 1 ms 604 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 604 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 0 ms 604 KB Output is correct
10 Correct 0 ms 604 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 0 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 0 ms 604 KB Output is correct
17 Correct 0 ms 604 KB Output is correct
18 Correct 0 ms 604 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 1 ms 604 KB Output is correct
21 Correct 1 ms 604 KB Output is correct
22 Correct 0 ms 604 KB Output is correct
23 Correct 0 ms 604 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 1 ms 604 KB Output is correct
27 Correct 4 ms 5976 KB Output is correct
28 Correct 10 ms 7260 KB Output is correct
29 Correct 6 ms 6748 KB Output is correct
30 Correct 5 ms 5980 KB Output is correct
31 Correct 5 ms 7260 KB Output is correct
32 Correct 5 ms 4956 KB Output is correct
33 Correct 7 ms 6748 KB Output is correct
34 Correct 4 ms 5980 KB Output is correct
35 Correct 7 ms 7516 KB Output is correct
36 Correct 6 ms 7516 KB Output is correct
37 Correct 7 ms 7388 KB Output is correct
38 Correct 6 ms 7512 KB Output is correct
39 Correct 7 ms 7448 KB Output is correct
40 Correct 6 ms 7516 KB Output is correct
41 Correct 9 ms 7372 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 604 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 0 ms 604 KB Output is correct
10 Correct 0 ms 604 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 0 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 0 ms 604 KB Output is correct
17 Correct 0 ms 604 KB Output is correct
18 Correct 0 ms 604 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 1 ms 604 KB Output is correct
21 Correct 1 ms 604 KB Output is correct
22 Correct 0 ms 604 KB Output is correct
23 Correct 0 ms 604 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 1 ms 604 KB Output is correct
27 Correct 4 ms 5976 KB Output is correct
28 Correct 10 ms 7260 KB Output is correct
29 Correct 6 ms 6748 KB Output is correct
30 Correct 5 ms 5980 KB Output is correct
31 Correct 5 ms 7260 KB Output is correct
32 Correct 5 ms 4956 KB Output is correct
33 Correct 7 ms 6748 KB Output is correct
34 Correct 4 ms 5980 KB Output is correct
35 Correct 7 ms 7516 KB Output is correct
36 Correct 6 ms 7516 KB Output is correct
37 Correct 7 ms 7388 KB Output is correct
38 Correct 6 ms 7512 KB Output is correct
39 Correct 7 ms 7448 KB Output is correct
40 Correct 6 ms 7516 KB Output is correct
41 Correct 9 ms 7372 KB Output is correct
42 Correct 3 ms 4700 KB Output is correct
43 Correct 3 ms 4700 KB Output is correct
44 Correct 4 ms 5724 KB Output is correct
45 Correct 6 ms 7004 KB Output is correct
46 Correct 4 ms 5380 KB Output is correct
47 Correct 4 ms 4596 KB Output is correct
48 Correct 5 ms 6236 KB Output is correct
49 Correct 5 ms 5288 KB Output is correct
50 Correct 9 ms 6656 KB Output is correct
51 Correct 7 ms 7000 KB Output is correct
52 Correct 5 ms 4956 KB Output is correct
53 Correct 11 ms 6900 KB Output is correct
54 Correct 11 ms 6744 KB Output is correct
55 Correct 7 ms 5980 KB Output is correct
56 Correct 6 ms 7260 KB Output is correct
57 Correct 6 ms 4700 KB Output is correct
58 Correct 6 ms 6748 KB Output is correct
59 Correct 4 ms 5184 KB Output is correct
60 Correct 6 ms 6236 KB Output is correct
61 Correct 5 ms 6668 KB Output is correct
62 Correct 6 ms 6748 KB Output is correct

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 604 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 0 ms 604 KB Output is correct
10 Correct 0 ms 604 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 0 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 0 ms 604 KB Output is correct
17 Correct 0 ms 604 KB Output is correct
18 Correct 0 ms 604 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 1 ms 604 KB Output is correct
21 Correct 1 ms 604 KB Output is correct
22 Correct 0 ms 604 KB Output is correct
23 Correct 0 ms 604 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 1 ms 604 KB Output is correct
27 Correct 4 ms 5976 KB Output is correct
28 Correct 10 ms 7260 KB Output is correct
29 Correct 6 ms 6748 KB Output is correct
30 Correct 5 ms 5980 KB Output is correct
31 Correct 5 ms 7260 KB Output is correct
32 Correct 5 ms 4956 KB Output is correct
33 Correct 7 ms 6748 KB Output is correct
34 Correct 4 ms 5980 KB Output is correct
35 Correct 7 ms 7516 KB Output is correct
36 Correct 6 ms 7516 KB Output is correct
37 Correct 7 ms 7388 KB Output is correct
38 Correct 6 ms 7512 KB Output is correct
39 Correct 7 ms 7448 KB Output is correct
40 Correct 6 ms 7516 KB Output is correct
41 Correct 9 ms 7372 KB Output is correct
42 Correct 3 ms 4700 KB Output is correct
43 Correct 3 ms 4700 KB Output is correct
44 Correct 4 ms 5724 KB Output is correct
45 Correct 6 ms 7004 KB Output is correct
46 Correct 4 ms 5380 KB Output is correct
47 Correct 4 ms 4596 KB Output is correct
48 Correct 5 ms 6236 KB Output is correct
49 Correct 5 ms 5288 KB Output is correct
50 Correct 9 ms 6656 KB Output is correct
51 Correct 7 ms 7000 KB Output is correct
52 Correct 5 ms 4956 KB Output is correct
53 Correct 11 ms 6900 KB Output is correct
54 Correct 11 ms 6744 KB Output is correct
55 Correct 7 ms 5980 KB Output is correct
56 Correct 6 ms 7260 KB Output is correct
57 Correct 6 ms 4700 KB Output is correct
58 Correct 6 ms 6748 KB Output is correct
59 Correct 4 ms 5184 KB Output is correct
60 Correct 6 ms 6236 KB Output is correct
61 Correct 5 ms 6668 KB Output is correct
62 Correct 6 ms 6748 KB Output is correct
63 Runtime error 1834 ms 524288 KB Execution killed with signal 9
64 Halted 0 ms 0 KB -

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 604 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 604 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 0 ms 604 KB Output is correct
10 Correct 0 ms 604 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 1 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 0 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 0 ms 604 KB Output is correct
17 Correct 0 ms 604 KB Output is correct
18 Correct 0 ms 604 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 1 ms 604 KB Output is correct
21 Correct 1 ms 604 KB Output is correct
22 Correct 0 ms 604 KB Output is correct
23 Correct 0 ms 604 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 1 ms 604 KB Output is correct
27 Correct 4 ms 5976 KB Output is correct
28 Correct 10 ms 7260 KB Output is correct
29 Correct 6 ms 6748 KB Output is correct
30 Correct 5 ms 5980 KB Output is correct
31 Correct 5 ms 7260 KB Output is correct
32 Correct 5 ms 4956 KB Output is correct
33 Correct 7 ms 6748 KB Output is correct
34 Correct 4 ms 5980 KB Output is correct
35 Correct 7 ms 7516 KB Output is correct
36 Correct 6 ms 7516 KB Output is correct
37 Correct 7 ms 7388 KB Output is correct
38 Correct 6 ms 7512 KB Output is correct
39 Correct 7 ms 7448 KB Output is correct
40 Correct 6 ms 7516 KB Output is correct
41 Correct 9 ms 7372 KB Output is correct
42 Correct 3 ms 4700 KB Output is correct
43 Correct 3 ms 4700 KB Output is correct
44 Correct 4 ms 5724 KB Output is correct
45 Correct 6 ms 7004 KB Output is correct
46 Correct 4 ms 5380 KB Output is correct
47 Correct 4 ms 4596 KB Output is correct
48 Correct 5 ms 6236 KB Output is correct
49 Correct 5 ms 5288 KB Output is correct
50 Correct 9 ms 6656 KB Output is correct
51 Correct 7 ms 7000 KB Output is correct
52 Correct 5 ms 4956 KB Output is correct
53 Correct 11 ms 6900 KB Output is correct
54 Correct 11 ms 6744 KB Output is correct
55 Correct 7 ms 5980 KB Output is correct
56 Correct 6 ms 7260 KB Output is correct
57 Correct 6 ms 4700 KB Output is correct
58 Correct 6 ms 6748 KB Output is correct
59 Correct 4 ms 5184 KB Output is correct
60 Correct 6 ms 6236 KB Output is correct
61 Correct 5 ms 6668 KB Output is correct
62 Correct 6 ms 6748 KB Output is correct
63 Runtime error 1834 ms 524288 KB Execution killed with signal 9
64 Halted 0 ms 0 KB -