oj.uz

Submission #1016865

# Submission time Handle Problem Language Result Execution time Memory
1016865 2024-07-08T13:51:59 Z bachhoangxuan Shopping (JOI21_shopping) C++17
100 / 100
 132 ms 16624 KB 
#include "Anna.h"
#include <bits/stdc++.h>
using namespace std;

namespace {
    const int maxn = 1e4+5;
    const int D = 13;
    int Q = 18;
    int sz,pos,nxt,T[maxn];
    int l,r,s,t,d;
    int N,L,R;
    int f(int x){return (x==1?0:32-__builtin_clz(x-1));}
    string get(int k,int d){
        string S;
        if(d==0) S+="000";
        else if(d==1) S+="001";
        else for(int i=3;i>=0;i--) S+=char('0'+((d+2)>>i&1));
        for(int i=d-1;i>=0;i--) S+=char('0'+(k>>i&1));
        return S;
    }
}

void InitA(int N, int L, int R) {
    ::N = N;::L = L;::R = R;
    l=0,r=N;
    int k=1;
    while(d<D){
        int m=(l+r)>>1;
        if(R<m) r=m,k<<=1;
        else if(m<L) l=m+1,k=k<<1|1;
        else break;
        d++;
    }
    //cout << "Anna " << l << ' ' << r << ' ' << k << ' ' << d << '\n';
    string S=get(k,d);
    for(int i=0;i<(int)S.size();i++) SendA(S[i]-'0');
    Q-=(int)S.size();
    int m=(l+r)>>1;
    s=t=m;sz=pos=0;
    if(d<D && (r-l)>=2) nxt=f(s-l+1);
    else nxt=-1;
}

void ReceiveA(bool x) {
    T[sz++]=x;
    while(sz==nxt){
        Q--;
        int k=f(s-l+1),p=0;
        for(int i=0;i<k;i++) p|=T[pos++]<<i;
        p+=l;
        int a=t-s,b=r-l;
        int m=(a+b-1)>>1;
        int q=p+m+1;
        //cout << "ReceiveA " << p << ' ' << q << '\n';
        if(p<=L && R<q){
            //cout << 1 << '\n';
            SendA(1);
            l=p,r=q;
        }
        else{
            //cout << 0 << '\n';
            SendA(0);
            s=p,t=q;
        }
        //cout << "ReceiveA " << l << ' ' << r << ' ' << s << ' ' << t << '\n';
        if(Q>0 && (s-l)+(r-t)>=2) nxt=sz+f(s-l+1);
        else nxt=-1;
    }
}

int Answer(){
    int p=-1;
    if(s!=t){
        int k=f(t-s);p=s;
        for(int i=0;i<k;i++) p+=T[pos++]<<i;
    }
    vector<int> ord;
    for(int i=l;i<s;i++) ord.push_back(i);
    if(p!=-1) ord.push_back(p);
    for(int i=t;i<r;i++) ord.push_back(i);
    vector<int> st;
    st.push_back(ord[0]);
    int lst=1,ret=-1;
    if(L<=ord[0] && ord[0]<=R) ret=ord[0];
    while(pos<sz){
        if(ret==-1 && L<=ord[lst] && ord[lst]<=R) ret=ord[lst];
        if(T[pos++]) st.push_back(ord[lst++]);
        else{
            int x=st.back();st.pop_back();
            if(L<=ord[lst] && ord[lst]<=R && ret==x) ret=ord[lst];
        }
    }
    return ret;
}

#include "Bruno.h"
#include <bits/stdc++.h>
using namespace std;

namespace {
    const int maxn = 1e6+5;
    const int D = 13;
    int Q = 18;
    int N,sz=0,pos=0,T[maxn];
    int l=-1,r=-1,s,t,d=-1,k=-1;
    int f(int x){return (x==1?0:32-__builtin_clz(x-1));}
    vector<int> P,ord;
}

void InitB(int N, std::vector<int> P) {
    ::N=N;::P=P;
    l=r=d=k=-1;
    sz=pos=0;
}

void ReceiveB(bool y) {
    T[sz++]=y;
    if(d==-1){
        int cc=0;
        for(int i=0;i<sz;i++) cc=cc<<1|T[i];
        if(sz==3 && cc<=1) d=cc;
        else if(sz==4) d=cc-2;
    }
    if(d==-1) return;
    if(k==-1){
        pos=3+(d>1);
        if(sz==pos+d){
            k=1;
            for(int i=0;i<d;i++) k=k<<1|T[pos+i];
            pos=sz;
        }
    }
    if(k==-1) return;
    if(l==-1){
        l=0,r=N;
        for(int i=d-1;i>=0;i--){
            int m=(l+r)>>1;
            if(k>>i&1) l=m+1;
            else r=m;
        }
        int m=(l+r)>>1;
        ord.push_back(m);
        int a=m-1,b=m+1;
        while(a>=l || b<r){
            if(a<l || (b<r && P[b]>=P[a])) ord.push_back(b++);
            else ord.push_back(a--);
        }
        s=t=m;
        //cout << "Bruno " << l << ' ' << r << ' ' << k << ' ' << d << '\n';
    }
    if(pos<sz){
        int a=t-s,b=r-l;
        int m=(a+b-1)>>1;
        //cout << "ReceiveB " << pos << ' ' << T[pos] << '\n';
        if(T[pos++]){
            if(ord[m]<=s) l=ord[m],r=l+m+1;
            else r=ord[m]+1,l=r-m-1;
        }
        else{
            if(ord[m]<=s) s=ord[m],t=s+m+1;
            else t=ord[m]+1,s=t-m-1;
        }
        //cout << "ReceiveB " << l << ' ' << r << ' ' << s << ' ' << t << '\n';
    }
    if(d<D && sz<Q && (s-l)+(r-t)>=2){
        int a=t-s,b=r-l;
        int m=(a+b-1)>>1;
        int p=ord[m]-(ord[m]>s)*m-l;
        for(int i=0;i<f(s-l+1);i++) SendB(p>>i&1);
        //cout << "SendB " << p << '\n';
    }
    else{
        int c=s;
        if(s<t){
            for(int i=s;i<t;i++) if(P[i]<P[c]) c=i;
            for(int i=0;i<f(t-s);i++) SendB((c-s)>>i&1);
        }
        vector<int> v;
        for(int i=l;i<s;i++) v.push_back(i);
        if(s<t) v.push_back(c);
        for(int i=t;i<r;i++) v.push_back(i);
        vector<int> st;
        st.push_back(v[0]);
        for(int i=1;i<(int)v.size();i++){
            int x=v[i];
            while(!st.empty() && P[st.back()]>P[x]) st.pop_back(),SendB(0);
            st.push_back(x);SendB(1);
        }
    }
}

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 664 KB Output is correct
2 Correct 0 ms 664 KB Output is correct
3 Correct 2 ms 664 KB Output is correct
4 Correct 2 ms 664 KB Output is correct
5 Correct 0 ms 664 KB Output is correct
6 Correct 1 ms 664 KB Output is correct
7 Correct 2 ms 664 KB Output is correct
8 Correct 2 ms 664 KB Output is correct
9 Correct 0 ms 664 KB Output is correct
10 Correct 0 ms 664 KB Output is correct
11 Correct 2 ms 664 KB Output is correct
12 Correct 2 ms 664 KB Output is correct
13 Correct 1 ms 664 KB Output is correct
14 Correct 0 ms 664 KB Output is correct
15 Correct 1 ms 664 KB Output is correct
16 Correct 2 ms 664 KB Output is correct
17 Correct 2 ms 664 KB Output is correct
18 Correct 0 ms 664 KB Output is correct
19 Correct 2 ms 664 KB Output is correct
20 Correct 1 ms 664 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 664 KB Output is correct
2 Correct 0 ms 664 KB Output is correct
3 Correct 2 ms 664 KB Output is correct
4 Correct 2 ms 664 KB Output is correct
5 Correct 0 ms 664 KB Output is correct
6 Correct 1 ms 664 KB Output is correct
7 Correct 2 ms 664 KB Output is correct
8 Correct 2 ms 664 KB Output is correct
9 Correct 0 ms 664 KB Output is correct
10 Correct 0 ms 664 KB Output is correct
11 Correct 2 ms 664 KB Output is correct
12 Correct 2 ms 664 KB Output is correct
13 Correct 1 ms 664 KB Output is correct
14 Correct 0 ms 664 KB Output is correct
15 Correct 1 ms 664 KB Output is correct
16 Correct 2 ms 664 KB Output is correct
17 Correct 2 ms 664 KB Output is correct
18 Correct 0 ms 664 KB Output is correct
19 Correct 2 ms 664 KB Output is correct
20 Correct 1 ms 664 KB Output is correct
21 Correct 1 ms 920 KB Output is correct
22 Correct 1 ms 664 KB Output is correct
23 Correct 2 ms 920 KB Output is correct
24 Correct 2 ms 664 KB Output is correct
25 Correct 1 ms 664 KB Output is correct
26 Correct 2 ms 1176 KB Output is correct
27 Correct 3 ms 664 KB Output is correct
28 Correct 2 ms 920 KB Output is correct
29 Correct 2 ms 920 KB Output is correct
30 Correct 1 ms 664 KB Output is correct
31 Correct 1 ms 664 KB Output is correct
32 Correct 2 ms 664 KB Output is correct
33 Correct 1 ms 664 KB Output is correct
34 Correct 2 ms 664 KB Output is correct
35 Correct 1 ms 664 KB Output is correct
36 Correct 1 ms 664 KB Output is correct
37 Correct 1 ms 664 KB Output is correct

Subtask #3
90.0 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 69 ms 16332 KB Output is correct
2 Correct 69 ms 12348 KB Output is correct
3 Correct 69 ms 12328 KB Output is correct
4 Correct 77 ms 16380 KB Output is correct
5 Correct 70 ms 16528 KB Output is correct
6 Correct 69 ms 16624 KB Output is correct
7 Correct 70 ms 12424 KB Output is correct
8 Correct 75 ms 12340 KB Output is correct
9 Correct 65 ms 12260 KB Output is correct
10 Correct 64 ms 12420 KB Output is correct
11 Correct 71 ms 16612 KB Output is correct
12 Correct 73 ms 12348 KB Output is correct
13 Correct 64 ms 12276 KB Output is correct
14 Correct 132 ms 12624 KB Output is correct
15 Correct 67 ms 12528 KB Output is correct
16 Correct 72 ms 12432 KB Output is correct
17 Correct 73 ms 12332 KB Output is correct
18 Correct 87 ms 12420 KB Output is correct
19 Correct 76 ms 12352 KB Output is correct
20 Correct 68 ms 12324 KB Output is correct
21 Correct 67 ms 12496 KB Output is correct
22 Correct 67 ms 12340 KB Output is correct
23 Correct 121 ms 12356 KB Output is correct
24 Correct 66 ms 12412 KB Output is correct
25 Correct 67 ms 12424 KB Output is correct
26 Correct 68 ms 12416 KB Output is correct
27 Correct 70 ms 12340 KB Output is correct
28 Correct 83 ms 12424 KB Output is correct
29 Correct 84 ms 12340 KB Output is correct
30 Correct 68 ms 12428 KB Output is correct