oj.uz

Submission #90668

# Submission time Handle Problem Language Result Execution time Memory
90668 2018-12-23T12:21:26 Z P1QG K blocks (IZhO14_blocks) C++11
0 / 100
 10 ms 4732 KB 
#include<bits/stdc++.h>
#define maxn 100005
using namespace std;

int n, k, a[maxn], F[maxn][105];

int main()
{
    //freopen("BLOCKS.inp","r",stdin);
    //freopen("BLOCKS.out","w",stdout);

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


    for(int i=0;i<=n;i++)
    {
        for(int j=0;j<=k;j++) F[i][j] = 1e9+9;
    }

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

    for(int i=2;i<=k;i++)
    {
        stack< pair<int,int> > P;
        for(int j=i;j<=n;j++)
        {
            int cur = F[j-1][i-1];

            while(P.size() && a[P.top().second] <= a[j])
            {
                cur = min(cur, P.top().first);
                P.pop();
            }

            F[j][i] = min(cur + a[j], F[P.empty() ? 0 : P.top().second][i]);

            P.push( make_pair(cur, i));
        }
    }

    cout << F[n][k];
}

Subtask #1
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 512 KB Output is correct
3 Correct 1 ms 536 KB Output is correct
4 Correct 2 ms 536 KB Output is correct
5 Correct 2 ms 676 KB Output is correct
6 Correct 2 ms 676 KB Output is correct
7 Correct 1 ms 676 KB Output is correct
8 Correct 2 ms 676 KB Output is correct
9 Correct 2 ms 676 KB Output is correct
10 Correct 2 ms 676 KB Output is correct
11 Correct 2 ms 676 KB Output is correct
12 Correct 2 ms 676 KB Output is correct
13 Incorrect 2 ms 676 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #2
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 676 KB Output is correct
2 Correct 2 ms 676 KB Output is correct
3 Correct 2 ms 676 KB Output is correct
4 Correct 2 ms 676 KB Output is correct
5 Correct 2 ms 748 KB Output is correct
6 Correct 2 ms 748 KB Output is correct
7 Correct 2 ms 748 KB Output is correct
8 Correct 2 ms 748 KB Output is correct
9 Correct 2 ms 748 KB Output is correct
10 Correct 2 ms 748 KB Output is correct
11 Correct 2 ms 748 KB Output is correct
12 Correct 2 ms 748 KB Output is correct
13 Correct 2 ms 748 KB Output is correct
14 Incorrect 2 ms 748 KB Output isn't correct
15 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 748 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 47.0

# Verdict Execution time Memory Grader output
1 Incorrect 10 ms 4732 KB Output isn't correct
2 Halted 0 ms 0 KB -