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Submission #281747

# Submission time Handle Problem Language Result Execution time Memory
281747 2020-08-23T12:06:34 Z hieppgga K blocks (IZhO14_blocks) C++14
100 / 100
 327 ms 41976 KB 
#include<bits/stdc++.h>
using namespace std;
void readInput()
{

}
void solve()
{

}
int a[100004],n,k,lef[100004],minn[100004],maxx[100004],dp[104][100004];
int INF=2e8;
stack<int> s;
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    readInput();
    solve();
    cin>>n>>k;
    for(int i=1; i<=n; i++)
        cin>>a[i];
    for(int i=1; i<=n; i++)
    {
        minn[i]=INF;
        maxx[i]=INF;
    }
    s.push(1);
    int maxxx=0;
    for(int i=1; i<=n; i++)
    {
        maxxx=max(maxxx,a[i]);
        dp[1][i]=maxxx;
    }
    for(int i=2; i<=n; i++)
    {
        while(!s.empty())
        {
            if(a[s.top()]>a[i])
            {
                //  dp[1][i]=a[s.top()];
                lef[i]=s.top();
                int c=min(maxx[s.top()],min(minn[i],dp[1][i]));
                minn[i]=min(minn[i],min(dp[1][s.top()],maxx[s.top()]));
                maxx[s.top()]=c;
                break;
            }
            else
                minn[i]=min(min(minn[i],minn[s.top()]),min(dp[1][s.top()],maxx[s.top()])),s.pop();
        }
        s.push(i);
        //if(dp[1][i]==0) dp[1][i]=a[i];
    }
    dp[1][0]=INF;
    for(int i=2; i<=k; i++)
    {
        dp[i][0]=INF;
        for(int j=1; j<=n; j++)
        {
            dp[i][j]=dp[i][lef[j]];
            dp[i][j]=min(dp[i][j],minn[j]+a[j]);
            minn[j]=INF;
            maxx[j]=INF;
        }
        while(!s.empty())
            s.pop();
        s.push(1);
        for(int j=2; j<=n; j++)
        {
            while(!s.empty())
            {
                if(a[s.top()]>a[j])
                {
                    //  dp[1][i]=a[s.top()];
                    int c=min(maxx[s.top()],min(minn[j],dp[i][j]));
                    minn[j]=min(minn[j],min(dp[i][s.top()],maxx[s.top()]));
                    maxx[s.top()]=c;
                    break;
                }
                else
                    minn[j]=min(min(minn[j],minn[s.top()]),min(dp[i][s.top()],maxx[s.top()])),s.pop();
            }
            s.push(j);
            //if(dp[1][i]==0) dp[1][i]=a[i];
        }
    }
    cout<<dp[k][n];

}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 0 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 0 ms 384 KB Output is correct
20 Correct 1 ms 512 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 640 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 512 KB Output is correct
14 Correct 1 ms 512 KB Output is correct
15 Correct 1 ms 896 KB Output is correct
16 Correct 1 ms 896 KB Output is correct
17 Correct 1 ms 640 KB Output is correct
18 Correct 1 ms 896 KB Output is correct
19 Correct 1 ms 896 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 1664 KB Output is correct
2 Correct 6 ms 1536 KB Output is correct
3 Correct 12 ms 2560 KB Output is correct
4 Correct 79 ms 14968 KB Output is correct
5 Correct 225 ms 41720 KB Output is correct
6 Correct 17 ms 3840 KB Output is correct
7 Correct 108 ms 20344 KB Output is correct
8 Correct 1 ms 512 KB Output is correct
9 Correct 1 ms 672 KB Output is correct
10 Correct 1 ms 640 KB Output is correct
11 Correct 1 ms 640 KB Output is correct
12 Correct 1 ms 452 KB Output is correct
13 Correct 1 ms 512 KB Output is correct
14 Correct 32 ms 4984 KB Output is correct
15 Correct 2 ms 640 KB Output is correct
16 Correct 9 ms 1664 KB Output is correct
17 Correct 6 ms 1536 KB Output is correct
18 Correct 14 ms 2560 KB Output is correct
19 Correct 113 ms 14840 KB Output is correct
20 Correct 327 ms 41744 KB Output is correct
21 Correct 19 ms 3712 KB Output is correct
22 Correct 152 ms 20216 KB Output is correct
23 Correct 13 ms 2944 KB Output is correct
24 Correct 42 ms 6528 KB Output is correct
25 Correct 321 ms 41720 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 512 KB Output is correct
28 Correct 29 ms 4984 KB Output is correct
29 Correct 2 ms 640 KB Output is correct
30 Correct 8 ms 1664 KB Output is correct
31 Correct 6 ms 1664 KB Output is correct
32 Correct 13 ms 2688 KB Output is correct
33 Correct 94 ms 14968 KB Output is correct
34 Correct 275 ms 41976 KB Output is correct
35 Correct 18 ms 3968 KB Output is correct
36 Correct 123 ms 20324 KB Output is correct
37 Correct 2 ms 640 KB Output is correct
38 Correct 23 ms 4992 KB Output is correct
39 Correct 1 ms 512 KB Output is correct
40 Correct 1 ms 384 KB Output is correct
41 Correct 0 ms 384 KB Output is correct
42 Correct 1 ms 384 KB Output is correct