oj.uz

Submission #1075011

# Submission time Handle Problem Language Result Execution time Memory
1075011 2024-08-25T17:33:22 Z sitablechair K blocks (IZhO14_blocks) C++17
53 / 100
 1000 ms 106652 KB 
#include <bits/stdc++.h>

#define ll long long
#define ldb long double
#define endl '\n'
#define For(i,l,r) for(int i=l;i<=r;i++)
#define ForD(i,r,l) for(int i=r;i>=l;i--)
#define REP(i,l,r) For(i,l,r-1)
#define PER(i,r,l) ForD(i,r-1,l)
#define ff first
#define ss second
#define pb emplace_back
#define all(x) x.begin(),x.end()
#define All(x,n) x+1,x+1+n
#define Alll(x,n) x,x+n
#define sz(x) (signed)x.size()
#define unq(x) x.resize(unique(all(x))-x.begin())
#define mpa make_pair

#ifdef NCGM
#include"debug.h"
#else 
#define debug(...) "fr";
#endif

using namespace std;

const int N=1e5+3;
const ll INF=1e17;

int n,k,a[N],l[N],r[N];
ll f[N][104],stb[N][20];
stack<int> skull;
vector<ll> in[N],out[N];
multiset<ll> st;

void pre(int k) {
    For(i,1,n) stb[i][0]=f[i][k];
    for(int j=1;j<=16;j++)
        for(int i=1;i+(1<<j)-1<=n;i++) stb[i][j]=min(stb[i][j-1],stb[i+(1<<j-1)][j-1]);
}
int get(int l,int r) {
    int len=__lg(r-l+1);
    return min(stb[l][len],stb[r-(1<<len)+1][len]);
}

int main() {
    cin.tie(0)->sync_with_stdio(0);
    cin >> n >> k;
    For(i,1,n) cin >> a[i];
    fill(l,l+n+1,-1);
    fill(r,r+n+1,n+1);
    For(i,1,n) {
        while(sz(skull) && a[skull.top()]<a[i]) {
            r[skull.top()]=i;
            skull.pop();
        }
        skull.push(i);
    }
    while(sz(skull)) skull.pop();
    ForD(i,n,1) {
        while(sz(skull) && a[skull.top()]<a[i]) {
            l[skull.top()]=i;
            skull.pop();
        }
        skull.push(i);
    }
    For(i,1,n) l[i]++,r[i]--;
    For(i,0,n)
        For(j,1,k) f[i][j]=INF;
    // Từ l[i]->i
    f[1][1]=a[1];
    For(i,2,n) f[i][1]=max(1LL*a[i],f[i-1][1]);
    For(j,2,k) {
        st.clear();
        pre(j-1);
        For(i,1,n) in[i].clear(),out[i].clear();
        For(i,j,n) {
            for(auto el: in[i]) st.insert(el);
            for(auto el: out[i]) st.erase(st.find(el));
            ll cur=get(max(l[i]-1,j-1),i-1)+a[i];
            f[i][j]=min(f[i][j],cur);
            if (sz(st)) f[i][j]=min(f[i][j],*st.begin());
            if (r[i]>i) {
                in[i+1].pb(cur);
                out[r[i]+1].pb(cur);
            }
            // For(k,j,i) f[i][j]=min(f[i][j],f[k-1][j-1]+get(k,i));
        }
    }
    cout << f[n][k];
    return 0;
}

Compilation message

blocks.cpp: In function 'void pre(int)':
blocks.cpp:40:77: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   40 |         for(int i=1;i+(1<<j)-1<=n;i++) stb[i][j]=min(stb[i][j-1],stb[i+(1<<j-1)][j-1]);
      |                                                                            ~^~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 10844 KB Output is correct
2 Correct 2 ms 10844 KB Output is correct
3 Correct 2 ms 10844 KB Output is correct
4 Correct 1 ms 10844 KB Output is correct
5 Correct 2 ms 10844 KB Output is correct
6 Correct 2 ms 10844 KB Output is correct
7 Correct 2 ms 10844 KB Output is correct
8 Correct 1 ms 10844 KB Output is correct
9 Correct 2 ms 10840 KB Output is correct
10 Correct 2 ms 10844 KB Output is correct
11 Correct 1 ms 10844 KB Output is correct
12 Correct 2 ms 10844 KB Output is correct
13 Correct 2 ms 10900 KB Output is correct
14 Correct 1 ms 10844 KB Output is correct
15 Correct 1 ms 10844 KB Output is correct
16 Correct 2 ms 10892 KB Output is correct
17 Correct 1 ms 10888 KB Output is correct
18 Correct 2 ms 10844 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 10840 KB Output is correct
2 Correct 1 ms 10844 KB Output is correct
3 Correct 2 ms 10840 KB Output is correct
4 Correct 1 ms 10860 KB Output is correct
5 Correct 1 ms 10844 KB Output is correct
6 Correct 1 ms 10680 KB Output is correct
7 Correct 1 ms 10844 KB Output is correct
8 Correct 2 ms 10844 KB Output is correct
9 Correct 1 ms 10844 KB Output is correct
10 Correct 2 ms 11096 KB Output is correct
11 Correct 2 ms 10844 KB Output is correct
12 Correct 1 ms 10844 KB Output is correct
13 Correct 1 ms 10900 KB Output is correct
14 Correct 2 ms 10844 KB Output is correct
15 Correct 2 ms 10840 KB Output is correct
16 Correct 1 ms 10844 KB Output is correct
17 Correct 1 ms 10844 KB Output is correct
18 Correct 2 ms 10844 KB Output is correct
19 Correct 2 ms 10844 KB Output is correct
20 Correct 2 ms 10860 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 10844 KB Output is correct
2 Correct 2 ms 10844 KB Output is correct
3 Correct 2 ms 10844 KB Output is correct
4 Correct 1 ms 10844 KB Output is correct
5 Correct 2 ms 10844 KB Output is correct
6 Correct 2 ms 10844 KB Output is correct
7 Correct 2 ms 10844 KB Output is correct
8 Correct 1 ms 10844 KB Output is correct
9 Correct 2 ms 10840 KB Output is correct
10 Correct 2 ms 10844 KB Output is correct
11 Correct 1 ms 10844 KB Output is correct
12 Correct 2 ms 10844 KB Output is correct
13 Correct 2 ms 10900 KB Output is correct
14 Correct 1 ms 10844 KB Output is correct
15 Correct 1 ms 10844 KB Output is correct
16 Correct 2 ms 10892 KB Output is correct
17 Correct 1 ms 10888 KB Output is correct
18 Correct 2 ms 10844 KB Output is correct
19 Correct 1 ms 10840 KB Output is correct
20 Correct 1 ms 10844 KB Output is correct
21 Correct 2 ms 10840 KB Output is correct
22 Correct 1 ms 10860 KB Output is correct
23 Correct 1 ms 10844 KB Output is correct
24 Correct 1 ms 10680 KB Output is correct
25 Correct 1 ms 10844 KB Output is correct
26 Correct 2 ms 10844 KB Output is correct
27 Correct 1 ms 10844 KB Output is correct
28 Correct 2 ms 11096 KB Output is correct
29 Correct 2 ms 10844 KB Output is correct
30 Correct 1 ms 10844 KB Output is correct
31 Correct 1 ms 10900 KB Output is correct
32 Correct 2 ms 10844 KB Output is correct
33 Correct 2 ms 10840 KB Output is correct
34 Correct 1 ms 10844 KB Output is correct
35 Correct 1 ms 10844 KB Output is correct
36 Correct 2 ms 10844 KB Output is correct
37 Correct 2 ms 10844 KB Output is correct
38 Correct 2 ms 10860 KB Output is correct
39 Correct 2 ms 10844 KB Output is correct
40 Correct 1 ms 10844 KB Output is correct
41 Correct 1 ms 10844 KB Output is correct
42 Correct 2 ms 10844 KB Output is correct
43 Correct 2 ms 10844 KB Output is correct
44 Correct 2 ms 10840 KB Output is correct
45 Correct 1 ms 10844 KB Output is correct
46 Correct 2 ms 10844 KB Output is correct
47 Correct 2 ms 10840 KB Output is correct
48 Correct 2 ms 10844 KB Output is correct
49 Correct 2 ms 10844 KB Output is correct
50 Correct 1 ms 10888 KB Output is correct
51 Correct 1 ms 10844 KB Output is correct
52 Correct 2 ms 10892 KB Output is correct
53 Correct 2 ms 10892 KB Output is correct
54 Correct 2 ms 10844 KB Output is correct
55 Correct 2 ms 10844 KB Output is correct
56 Correct 2 ms 10840 KB Output is correct
57 Correct 2 ms 10960 KB Output is correct

Subtask #4
0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 10844 KB Output is correct
2 Correct 2 ms 10844 KB Output is correct
3 Correct 2 ms 10844 KB Output is correct
4 Correct 1 ms 10844 KB Output is correct
5 Correct 2 ms 10844 KB Output is correct
6 Correct 2 ms 10844 KB Output is correct
7 Correct 2 ms 10844 KB Output is correct
8 Correct 1 ms 10844 KB Output is correct
9 Correct 2 ms 10840 KB Output is correct
10 Correct 2 ms 10844 KB Output is correct
11 Correct 1 ms 10844 KB Output is correct
12 Correct 2 ms 10844 KB Output is correct
13 Correct 2 ms 10900 KB Output is correct
14 Correct 1 ms 10844 KB Output is correct
15 Correct 1 ms 10844 KB Output is correct
16 Correct 2 ms 10892 KB Output is correct
17 Correct 1 ms 10888 KB Output is correct
18 Correct 2 ms 10844 KB Output is correct
19 Correct 1 ms 10840 KB Output is correct
20 Correct 1 ms 10844 KB Output is correct
21 Correct 2 ms 10840 KB Output is correct
22 Correct 1 ms 10860 KB Output is correct
23 Correct 1 ms 10844 KB Output is correct
24 Correct 1 ms 10680 KB Output is correct
25 Correct 1 ms 10844 KB Output is correct
26 Correct 2 ms 10844 KB Output is correct
27 Correct 1 ms 10844 KB Output is correct
28 Correct 2 ms 11096 KB Output is correct
29 Correct 2 ms 10844 KB Output is correct
30 Correct 1 ms 10844 KB Output is correct
31 Correct 1 ms 10900 KB Output is correct
32 Correct 2 ms 10844 KB Output is correct
33 Correct 2 ms 10840 KB Output is correct
34 Correct 1 ms 10844 KB Output is correct
35 Correct 1 ms 10844 KB Output is correct
36 Correct 2 ms 10844 KB Output is correct
37 Correct 2 ms 10844 KB Output is correct
38 Correct 2 ms 10860 KB Output is correct
39 Correct 2 ms 10844 KB Output is correct
40 Correct 1 ms 10844 KB Output is correct
41 Correct 1 ms 10844 KB Output is correct
42 Correct 2 ms 10844 KB Output is correct
43 Correct 2 ms 10844 KB Output is correct
44 Correct 2 ms 10840 KB Output is correct
45 Correct 1 ms 10844 KB Output is correct
46 Correct 2 ms 10844 KB Output is correct
47 Correct 2 ms 10840 KB Output is correct
48 Correct 2 ms 10844 KB Output is correct
49 Correct 2 ms 10844 KB Output is correct
50 Correct 1 ms 10888 KB Output is correct
51 Correct 1 ms 10844 KB Output is correct
52 Correct 2 ms 10892 KB Output is correct
53 Correct 2 ms 10892 KB Output is correct
54 Correct 2 ms 10844 KB Output is correct
55 Correct 2 ms 10844 KB Output is correct
56 Correct 2 ms 10840 KB Output is correct
57 Correct 2 ms 10960 KB Output is correct
58 Correct 21 ms 18776 KB Output is correct
59 Correct 15 ms 46940 KB Output is correct
60 Correct 41 ms 53332 KB Output is correct
61 Correct 239 ms 53332 KB Output is correct
62 Correct 856 ms 106576 KB Output is correct
63 Correct 58 ms 106580 KB Output is correct
64 Correct 356 ms 106652 KB Output is correct
65 Correct 2 ms 10844 KB Output is correct
66 Correct 2 ms 10844 KB Output is correct
67 Correct 2 ms 10844 KB Output is correct
68 Correct 1 ms 10844 KB Output is correct
69 Correct 2 ms 12960 KB Output is correct
70 Correct 2 ms 12892 KB Output is correct
71 Correct 89 ms 19036 KB Output is correct
72 Correct 6 ms 18780 KB Output is correct
73 Correct 29 ms 18780 KB Output is correct
74 Correct 16 ms 46940 KB Output is correct
75 Correct 41 ms 53340 KB Output is correct
76 Correct 313 ms 53464 KB Output is correct
77 Execution timed out 1027 ms 106324 KB Time limit exceeded
78 Halted 0 ms 0 KB -