oj.uz

Submission #491181

# Submission time Handle Problem Language Result Execution time Memory
491181 2021-11-30T17:02:25 Z Newtech66 K blocks (IZhO14_blocks) C++17
53 / 100
 1000 ms 104664 KB 
#include<bits/stdc++.h>
using namespace std;
using lol=long long int;
#define endl "\n"
const lol mod1=1e9+7,mod2=998244353;
const lol inf=1e18+8;
const double eps=1e-12;
const int N=2*1e5+5;
#include <ext/pb_ds/assoc_container.hpp> // Common file
#include <ext/pb_ds/tree_policy.hpp> // Including tree_order_statistics_node_update
using namespace __gnu_pbds;
typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> ordered_set;
//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int lg2[N];

int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
lg2[1]=0;
for(int i=2;i<N;i++)    lg2[i]=lg2[i/2]+1;
int _=1;
//cin>>_;
while(_--)
{
    int n,k;
    cin>>n>>k;
    vector<vector<lol> > dp(n,vector<lol>(k+1,inf));
    vector<lol> v(n);
    for(int i=0;i<n;i++)
    {
        cin>>v[i];
    }
    vector<int> psg(n,-1);
    stack<lol> st;
    for(int i=0;i<n;i++)
    {
        while(!st.empty() && v[st.top()]<v[i])    st.pop();
        if(!st.empty())  psg[i]=st.top();
        st.push(i);
    }
    lol mx=0;
    for(int i=0;i<n;i++)
    {
        mx=max(mx,v[i]);
        dp[i][1]=mx;
    }
    for(int l=2;l<=k;l++)
    {
        lol spt[n][25];
        for(int i=0;i<n;i++)
        {
            spt[i][0]=dp[i][l-1];
        }
        for(int j=1;j<25;j++)
        {
            for(int i=0;i+(1<<j)<=n;i++)
            {
                spt[i][j]=min(spt[i][j-1],spt[i+(1<<(j-1))][j-1]);
            }
        }
        auto getmin=[&](int L,int R)
        {
            if(L>R) return inf;
            int j=lg2[R-L+1];
            return min(spt[L][j],spt[R-(1<<j)+1][j]);
        };
        for(int i=0;i<n;i++)
        {
            int p=psg[i];
            if(p==-1)
            {
                dp[i][l]=v[i]+getmin(0,i-1);
            }else
            {
                lol mn=v[i]+getmin(p,i-1);
                mn=min(mn,dp[p][l]);
                dp[i][l]=min(mn,inf);
            }
        }
    }
    /*for(int i=1;i<=k;i++)
    {
        for(int j=0;j<n;j++)
        {
            cout<<dp[j][i]<<" ";
        }
        cout<<endl;
    }*/
    cout<<dp[n-1][k];
}
return 0;
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1100 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 1100 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 1100 KB Output is correct
9 Correct 1 ms 1100 KB Output is correct
10 Correct 1 ms 972 KB Output is correct
11 Correct 1 ms 1040 KB Output is correct
12 Correct 1 ms 1100 KB Output is correct
13 Correct 1 ms 1100 KB Output is correct
14 Correct 1 ms 1100 KB Output is correct
15 Correct 1 ms 1100 KB Output is correct
16 Correct 1 ms 1100 KB Output is correct
17 Correct 1 ms 1100 KB Output is correct
18 Correct 1 ms 1100 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1100 KB Output is correct
2 Correct 1 ms 1100 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 1100 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 972 KB Output is correct
9 Correct 1 ms 972 KB Output is correct
10 Correct 1 ms 972 KB Output is correct
11 Correct 1 ms 972 KB Output is correct
12 Correct 1 ms 972 KB Output is correct
13 Correct 1 ms 972 KB Output is correct
14 Correct 1 ms 972 KB Output is correct
15 Correct 1 ms 1100 KB Output is correct
16 Correct 1 ms 972 KB Output is correct
17 Correct 1 ms 1100 KB Output is correct
18 Correct 1 ms 1100 KB Output is correct
19 Correct 1 ms 1100 KB Output is correct
20 Correct 1 ms 972 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1100 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 1100 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 1100 KB Output is correct
9 Correct 1 ms 1100 KB Output is correct
10 Correct 1 ms 972 KB Output is correct
11 Correct 1 ms 1040 KB Output is correct
12 Correct 1 ms 1100 KB Output is correct
13 Correct 1 ms 1100 KB Output is correct
14 Correct 1 ms 1100 KB Output is correct
15 Correct 1 ms 1100 KB Output is correct
16 Correct 1 ms 1100 KB Output is correct
17 Correct 1 ms 1100 KB Output is correct
18 Correct 1 ms 1100 KB Output is correct
19 Correct 1 ms 1100 KB Output is correct
20 Correct 1 ms 1100 KB Output is correct
21 Correct 1 ms 972 KB Output is correct
22 Correct 1 ms 1100 KB Output is correct
23 Correct 1 ms 972 KB Output is correct
24 Correct 1 ms 972 KB Output is correct
25 Correct 1 ms 972 KB Output is correct
26 Correct 1 ms 972 KB Output is correct
27 Correct 1 ms 972 KB Output is correct
28 Correct 1 ms 972 KB Output is correct
29 Correct 1 ms 972 KB Output is correct
30 Correct 1 ms 972 KB Output is correct
31 Correct 1 ms 972 KB Output is correct
32 Correct 1 ms 972 KB Output is correct
33 Correct 1 ms 1100 KB Output is correct
34 Correct 1 ms 972 KB Output is correct
35 Correct 1 ms 1100 KB Output is correct
36 Correct 1 ms 1100 KB Output is correct
37 Correct 1 ms 1100 KB Output is correct
38 Correct 1 ms 972 KB Output is correct
39 Correct 1 ms 1100 KB Output is correct
40 Correct 1 ms 972 KB Output is correct
41 Correct 1 ms 972 KB Output is correct
42 Correct 1 ms 972 KB Output is correct
43 Correct 1 ms 972 KB Output is correct
44 Correct 1 ms 972 KB Output is correct
45 Correct 1 ms 972 KB Output is correct
46 Correct 1 ms 972 KB Output is correct
47 Correct 1 ms 972 KB Output is correct
48 Correct 1 ms 972 KB Output is correct
49 Correct 1 ms 972 KB Output is correct
50 Correct 1 ms 972 KB Output is correct
51 Correct 1 ms 1100 KB Output is correct
52 Correct 1 ms 1100 KB Output is correct
53 Correct 1 ms 1100 KB Output is correct
54 Correct 1 ms 1100 KB Output is correct
55 Correct 1 ms 1100 KB Output is correct
56 Correct 1 ms 1100 KB Output is correct
57 Correct 1 ms 1100 KB Output is correct

Subtask #4
0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1100 KB Output is correct
2 Correct 1 ms 972 KB Output is correct
3 Correct 1 ms 972 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 1100 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 1100 KB Output is correct
9 Correct 1 ms 1100 KB Output is correct
10 Correct 1 ms 972 KB Output is correct
11 Correct 1 ms 1040 KB Output is correct
12 Correct 1 ms 1100 KB Output is correct
13 Correct 1 ms 1100 KB Output is correct
14 Correct 1 ms 1100 KB Output is correct
15 Correct 1 ms 1100 KB Output is correct
16 Correct 1 ms 1100 KB Output is correct
17 Correct 1 ms 1100 KB Output is correct
18 Correct 1 ms 1100 KB Output is correct
19 Correct 1 ms 1100 KB Output is correct
20 Correct 1 ms 1100 KB Output is correct
21 Correct 1 ms 972 KB Output is correct
22 Correct 1 ms 1100 KB Output is correct
23 Correct 1 ms 972 KB Output is correct
24 Correct 1 ms 972 KB Output is correct
25 Correct 1 ms 972 KB Output is correct
26 Correct 1 ms 972 KB Output is correct
27 Correct 1 ms 972 KB Output is correct
28 Correct 1 ms 972 KB Output is correct
29 Correct 1 ms 972 KB Output is correct
30 Correct 1 ms 972 KB Output is correct
31 Correct 1 ms 972 KB Output is correct
32 Correct 1 ms 972 KB Output is correct
33 Correct 1 ms 1100 KB Output is correct
34 Correct 1 ms 972 KB Output is correct
35 Correct 1 ms 1100 KB Output is correct
36 Correct 1 ms 1100 KB Output is correct
37 Correct 1 ms 1100 KB Output is correct
38 Correct 1 ms 972 KB Output is correct
39 Correct 1 ms 1100 KB Output is correct
40 Correct 1 ms 972 KB Output is correct
41 Correct 1 ms 972 KB Output is correct
42 Correct 1 ms 972 KB Output is correct
43 Correct 1 ms 972 KB Output is correct
44 Correct 1 ms 972 KB Output is correct
45 Correct 1 ms 972 KB Output is correct
46 Correct 1 ms 972 KB Output is correct
47 Correct 1 ms 972 KB Output is correct
48 Correct 1 ms 972 KB Output is correct
49 Correct 1 ms 972 KB Output is correct
50 Correct 1 ms 972 KB Output is correct
51 Correct 1 ms 1100 KB Output is correct
52 Correct 1 ms 1100 KB Output is correct
53 Correct 1 ms 1100 KB Output is correct
54 Correct 1 ms 1100 KB Output is correct
55 Correct 1 ms 1100 KB Output is correct
56 Correct 1 ms 1100 KB Output is correct
57 Correct 1 ms 1100 KB Output is correct
58 Correct 10 ms 5580 KB Output is correct
59 Correct 7 ms 4024 KB Output is correct
60 Correct 31 ms 14796 KB Output is correct
61 Correct 261 ms 38800 KB Output is correct
62 Execution timed out 1097 ms 104664 KB Time limit exceeded
63 Halted 0 ms 0 KB -