oj.uz

Submission #405569

# Submission time Handle Problem Language Result Execution time Memory
405569 2021-05-16T14:36:37 Z sad Cigle (COI21_cigle) C++14
48 / 100
 1000 ms 269996 KB 
#include <bits/stdc++.h>
#define ll long long
#define fi first
#define se second
#define pb push_back
using namespace std;
int n;const int N=510,M=500*5009;
pair<int,int>dp[N][N];int a[N],fr[M],rw[N][N][N],prf[M];
pair<int,int>mxdp[N][N];
int main()
{
    cin>>n;int ans=0;
    for(int i=1;i<n+1;i++)cin>>a[i];
    for(int i=2;i<n;i++)
    {
        int sm=0;
        for(int j=i+1;j<n+1;j++)
        {
            if(j!=i+1)
            {
                sm+=a[j-1];
                fr[sm]=1;
            }

            int s=0,rs=0;
            for(int q=i-1;q>-1;q--)
            {
                if(q!=i-1)
                {
                    s+=a[q+2];
                    if(fr[s])
                        rs++;
                }
                rw[q][i][j]=rs;
            }

        }
        for(int j=n;j>i;j--)
        {
            if(j!=i+1)
            {
                fr[sm]=0;
                sm-=a[j-1];
            }
        }

    }
    for(int m=1;m<=n;m++)
    {
        memset(prf,-1,sizeof prf);
        int re=0;
        for(int i=m;i>0;i--)
        {
            re+=a[i];
            prf[re]=i;
        }
        re=0;
        dp[m][m]={0,n+1};
        mxdp[m][1]={dp[m][1].fi,1};
        for(int i=2;i<m;i++)
        {

            if(dp[m][i].fi>mxdp[m][i-1].fi)
            {
                mxdp[m][i]={dp[m][i].fi,i};continue;
            }
            mxdp[m][i]=mxdp[m][i-1];
        }
        dp[m+1][m]=mxdp[m][m-1];ans=max(ans,dp[m+1][m].fi);
        for(int r=m+2;r<n+1;r++)
        {re+=a[r-1];
            int last=dp[r-1][m].se;
            int mx=dp[r-1][m].fi;
            if(prf[re]==-1||prf[re]-2<0)
            {
                dp[r][m]=dp[r-1][m];
                ans=max(ans,mx);continue;
            }/*
            if(last+2<=prf[re])
            {
                dp[r][m]={mx+1,last};
                ans=max(ans,dp[r][m].fi);continue;
            }*/
            pair<int,int>z=mxdp[m][prf[re]-2];
            z.fi+=rw[prf[re]-2][m][r];
            if(z.fi>mx)
            {
                dp[r][m]=z;
                ans=max(ans,z.fi);continue;
            }
            dp[r][m]=dp[r-1][m];
            ans=max(ans,mx);
            continue;
        }
    }
    cout<<ans;

}
/*
10
2 3 2 1 1 5 5 2 5 1
*/

Compilation message

cigle.cpp: In function 'int main()':
cigle.cpp:72:17: warning: unused variable 'last' [-Wunused-variable]
   72 |             int last=dp[r-1][m].se;
      |                 ^~~~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 10644 KB Output is correct
2 Correct 27 ms 10704 KB Output is correct
3 Correct 28 ms 10676 KB Output is correct
4 Correct 26 ms 10680 KB Output is correct
5 Correct 27 ms 10648 KB Output is correct
6 Correct 28 ms 10700 KB Output is correct
7 Correct 28 ms 10828 KB Output is correct
8 Correct 28 ms 10852 KB Output is correct
9 Correct 29 ms 10776 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 10644 KB Output is correct
2 Correct 27 ms 10704 KB Output is correct
3 Correct 28 ms 10676 KB Output is correct
4 Correct 26 ms 10680 KB Output is correct
5 Correct 27 ms 10648 KB Output is correct
6 Correct 28 ms 10700 KB Output is correct
7 Correct 28 ms 10828 KB Output is correct
8 Correct 28 ms 10852 KB Output is correct
9 Correct 29 ms 10776 KB Output is correct
10 Correct 108 ms 17296 KB Output is correct
11 Correct 112 ms 17220 KB Output is correct
12 Correct 93 ms 17300 KB Output is correct
13 Correct 99 ms 17296 KB Output is correct
14 Correct 93 ms 17220 KB Output is correct
15 Correct 102 ms 17256 KB Output is correct
16 Correct 110 ms 18004 KB Output is correct
17 Correct 96 ms 17452 KB Output is correct
18 Correct 97 ms 17436 KB Output is correct
19 Correct 119 ms 17480 KB Output is correct
20 Correct 117 ms 17540 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 713 ms 265072 KB Output is correct
2 Correct 687 ms 265096 KB Output is correct
3 Correct 798 ms 265028 KB Output is correct
4 Correct 728 ms 265000 KB Output is correct
5 Correct 719 ms 265028 KB Output is correct
6 Correct 731 ms 265104 KB Output is correct
7 Correct 698 ms 265092 KB Output is correct
8 Correct 678 ms 265080 KB Output is correct
9 Correct 715 ms 265000 KB Output is correct
10 Correct 739 ms 265104 KB Output is correct
11 Correct 733 ms 265028 KB Output is correct
12 Correct 694 ms 265080 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 10644 KB Output is correct
2 Correct 27 ms 10704 KB Output is correct
3 Correct 28 ms 10676 KB Output is correct
4 Correct 26 ms 10680 KB Output is correct
5 Correct 27 ms 10648 KB Output is correct
6 Correct 28 ms 10700 KB Output is correct
7 Correct 28 ms 10828 KB Output is correct
8 Correct 28 ms 10852 KB Output is correct
9 Correct 29 ms 10776 KB Output is correct
10 Correct 108 ms 17296 KB Output is correct
11 Correct 112 ms 17220 KB Output is correct
12 Correct 93 ms 17300 KB Output is correct
13 Correct 99 ms 17296 KB Output is correct
14 Correct 93 ms 17220 KB Output is correct
15 Correct 102 ms 17256 KB Output is correct
16 Correct 110 ms 18004 KB Output is correct
17 Correct 96 ms 17452 KB Output is correct
18 Correct 97 ms 17436 KB Output is correct
19 Correct 119 ms 17480 KB Output is correct
20 Correct 117 ms 17540 KB Output is correct
21 Correct 713 ms 265072 KB Output is correct
22 Correct 687 ms 265096 KB Output is correct
23 Correct 798 ms 265028 KB Output is correct
24 Correct 728 ms 265000 KB Output is correct
25 Correct 719 ms 265028 KB Output is correct
26 Correct 731 ms 265104 KB Output is correct
27 Correct 698 ms 265092 KB Output is correct
28 Correct 678 ms 265080 KB Output is correct
29 Correct 715 ms 265000 KB Output is correct
30 Correct 739 ms 265104 KB Output is correct
31 Correct 733 ms 265028 KB Output is correct
32 Correct 694 ms 265080 KB Output is correct
33 Correct 763 ms 265140 KB Output is correct
34 Correct 711 ms 265084 KB Output is correct
35 Correct 754 ms 265092 KB Output is correct
36 Correct 669 ms 265028 KB Output is correct
37 Correct 688 ms 265048 KB Output is correct
38 Correct 710 ms 265144 KB Output is correct
39 Correct 679 ms 265168 KB Output is correct
40 Correct 724 ms 269996 KB Output is correct
41 Correct 752 ms 268156 KB Output is correct
42 Correct 750 ms 265256 KB Output is correct
43 Correct 770 ms 269900 KB Output is correct
44 Correct 714 ms 266480 KB Output is correct
45 Correct 737 ms 265812 KB Output is correct
46 Correct 723 ms 265868 KB Output is correct
47 Correct 770 ms 265676 KB Output is correct
48 Correct 712 ms 268284 KB Output is correct
49 Correct 752 ms 265824 KB Output is correct

Subtask #5
0 / 52.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 10644 KB Output is correct
2 Correct 27 ms 10704 KB Output is correct
3 Correct 28 ms 10676 KB Output is correct
4 Correct 26 ms 10680 KB Output is correct
5 Correct 27 ms 10648 KB Output is correct
6 Correct 28 ms 10700 KB Output is correct
7 Correct 28 ms 10828 KB Output is correct
8 Correct 28 ms 10852 KB Output is correct
9 Correct 29 ms 10776 KB Output is correct
10 Correct 108 ms 17296 KB Output is correct
11 Correct 112 ms 17220 KB Output is correct
12 Correct 93 ms 17300 KB Output is correct
13 Correct 99 ms 17296 KB Output is correct
14 Correct 93 ms 17220 KB Output is correct
15 Correct 102 ms 17256 KB Output is correct
16 Correct 110 ms 18004 KB Output is correct
17 Correct 96 ms 17452 KB Output is correct
18 Correct 97 ms 17436 KB Output is correct
19 Correct 119 ms 17480 KB Output is correct
20 Correct 117 ms 17540 KB Output is correct
21 Correct 713 ms 265072 KB Output is correct
22 Correct 687 ms 265096 KB Output is correct
23 Correct 798 ms 265028 KB Output is correct
24 Correct 728 ms 265000 KB Output is correct
25 Correct 719 ms 265028 KB Output is correct
26 Correct 731 ms 265104 KB Output is correct
27 Correct 698 ms 265092 KB Output is correct
28 Correct 678 ms 265080 KB Output is correct
29 Correct 715 ms 265000 KB Output is correct
30 Correct 739 ms 265104 KB Output is correct
31 Correct 733 ms 265028 KB Output is correct
32 Correct 694 ms 265080 KB Output is correct
33 Correct 763 ms 265140 KB Output is correct
34 Correct 711 ms 265084 KB Output is correct
35 Correct 754 ms 265092 KB Output is correct
36 Correct 669 ms 265028 KB Output is correct
37 Correct 688 ms 265048 KB Output is correct
38 Correct 710 ms 265144 KB Output is correct
39 Correct 679 ms 265168 KB Output is correct
40 Correct 724 ms 269996 KB Output is correct
41 Correct 752 ms 268156 KB Output is correct
42 Correct 750 ms 265256 KB Output is correct
43 Correct 770 ms 269900 KB Output is correct
44 Correct 714 ms 266480 KB Output is correct
45 Correct 737 ms 265812 KB Output is correct
46 Correct 723 ms 265868 KB Output is correct
47 Correct 770 ms 265676 KB Output is correct
48 Correct 712 ms 268284 KB Output is correct
49 Correct 752 ms 265824 KB Output is correct
50 Execution timed out 1108 ms 205412 KB Time limit exceeded
51 Halted 0 ms 0 KB -