oj.uz

Submission #875912

# Submission time Handle Problem Language Result Execution time Memory
875912 2023-11-20T18:04:52 Z maxFedorchuk Exam (eJOI20_exam) C++14
65 / 100
 164 ms 99216 KB 
#include<bits/stdc++.h>
#define FOR(i, begin, end) for(int i=(begin); i<(end); i++)

using namespace std;

const int N=5e3+10, L=28;
int n, a[N], b[N], st[N][L], dp[N][N];

void build()
{
    FOR(i, 1, L)
    {
        for(int j=1; j+(1<<i)-1<=n; j++)
        {
            st[j][i]=max(st[j][i-1], st[j+(1<<(i-1))][i-1]);
        }
    }
}

int get(int l, int r)
{
    int ln=r-l+1;
    int k=0;

    while((1<<(k+1))<=ln)
    {
        k++;
    }

    return max(st[l][k], st[r-(1<<k)+1][k]);
}

int main()
{
    cin >> n;
    FOR(i, 0, n)
    {
        cin >> a[i+1];
        st[i+1][0]=a[i+1];
    }

    FOR(i, 0, n) cin >> b[i+1];

    build();

    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=n;j++)
        {
            if(a[i]==b[j])
            {
                int mx=get(min(i, j), max(i, j));

                if(mx==a[i])
                {
                    dp[i][j]+=dp[i][j-1]+1;
                }
                else
                {
                    dp[i][j]=max({ dp[i-1][j], dp[i][j-1], dp[i-1][j-1] });
                }
            }
            else
            {
                dp[i][j]=max({ dp[i-1][j], dp[i][j-1] , dp[i-1][j-1] });
            }
        }
    }

    cout << dp[n][n]<<"\n";
    return 0;
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2648 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 12124 KB Output is correct
2 Runtime error 5 ms 4956 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2392 KB Output is correct
2 Correct 3 ms 5476 KB Output is correct
3 Correct 25 ms 31836 KB Output is correct
4 Correct 106 ms 97096 KB Output is correct
5 Correct 112 ms 99100 KB Output is correct
6 Correct 112 ms 99088 KB Output is correct

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 113 ms 99168 KB Output is correct
2 Runtime error 6 ms 4956 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #5
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2648 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2652 KB Output is correct
9 Correct 1 ms 2908 KB Output is correct
10 Correct 1 ms 3420 KB Output is correct
11 Correct 1 ms 3420 KB Output is correct
12 Correct 1 ms 3420 KB Output is correct
13 Correct 1 ms 3420 KB Output is correct
14 Correct 1 ms 3420 KB Output is correct

Subtask #6
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 0 ms 2396 KB Output is correct
3 Correct 1 ms 2648 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 0 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 0 ms 2392 KB Output is correct
8 Correct 3 ms 5476 KB Output is correct
9 Correct 25 ms 31836 KB Output is correct
10 Correct 106 ms 97096 KB Output is correct
11 Correct 112 ms 99100 KB Output is correct
12 Correct 112 ms 99088 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2652 KB Output is correct
15 Correct 1 ms 2908 KB Output is correct
16 Correct 1 ms 3420 KB Output is correct
17 Correct 1 ms 3420 KB Output is correct
18 Correct 1 ms 3420 KB Output is correct
19 Correct 1 ms 3420 KB Output is correct
20 Correct 1 ms 3420 KB Output is correct
21 Correct 2 ms 3420 KB Output is correct
22 Correct 8 ms 12120 KB Output is correct
23 Correct 164 ms 99216 KB Output is correct
24 Correct 161 ms 99148 KB Output is correct
25 Correct 114 ms 99156 KB Output is correct
26 Correct 111 ms 99080 KB Output is correct
27 Correct 114 ms 99132 KB Output is correct
28 Correct 114 ms 99056 KB Output is correct
29 Correct 111 ms 99060 KB Output is correct
30 Correct 112 ms 99152 KB Output is correct
31 Correct 111 ms 99136 KB Output is correct
32 Correct 113 ms 99188 KB Output is correct