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Submission #788761

# Submission time Handle Problem Language Result Execution time Memory
788761 2023-07-20T14:54:28 Z mosiashvililuka Radio Towers (IOI22_towers) C++17
14 / 100
 1055 ms 21656 KB 
#include<bits/stdc++.h>
#include "towers.h"
using namespace std;
const int N=2000000009;
int a,b,c,d,e,i,j,ii,jj,zx,xc,f[100009],pas,L,R,D,seg[400009],l,r,z,za,PI,bo[100009],VAL[100009],pr[100009],counter,fen[200009],fen2[200009],K[100009],HD[1000009],lf[100009],rg[100009],aris[100009];
int segLF[400009],segRG[400009],segaris[400009];
map <int, int> m;
map <int, int>::iterator TA;
vector <pair <int, int> > ANS;
multiset <int> s;
multiset <int>::iterator it,tt;
multiset <pair <int, int> > S;
multiset <pair <int, int> >::iterator IT,TT;
pair <int, int> P[100009];
//
void upd(int q, int w){
    q=200003-q;
    while(q<=200005){
        fen[q]=min(fen[q],w);
        q=q+(q&(-q));
    }
}
int READ(int q){
    q=200003-q;
    int sm=200007;
    while(q>0){
        sm=min(sm,fen[q]);
        q=q-(q&(-q));
    }
    return sm;
}

void upd2(int q, int w){
    q=200003-q;
    while(q<=200005){
        fen2[q]=max(fen2[q],w);
        q=q+(q&(-q));
    }
}
int read2(int q){
    q=200003-q;
    int sm=0;
    while(q>0){
        sm=max(sm,fen2[q]);
        q=q-(q&(-q));
    }
    return sm;
}


void upd3(int q, int w){
    while(q<=200005){
        fen[q]=max(fen[q],w);
        q=q+(q&(-q));
    }
}
int read3(int q){
    int sm=0;
    while(q>0){
        sm=max(sm,fen[q]);
        q=q-(q&(-q));
    }
    return sm;
}
//
void read(int q, int w, int rr){
    if(q>r||w<l) return;
    if(q>=l&&w<=r){
        z=max(z,seg[rr]);
        return;
    }
    read(q,(q+w)/2,rr*2);
    read((q+w)/2+1,w,rr*2+1);
}

void readLF(int q, int w, int rr){
    if(q>r||w<l) return;
    if(q>=l&&w<=r){
        z=max(z,segLF[rr]);
        return;
    }
    readLF(q,(q+w)/2,rr*2);
    readLF((q+w)/2+1,w,rr*2+1);
}
void readRG(int q, int w, int rr){
    if(q>r||w<l) return;
    if(q>=l&&w<=r){
        z=min(z,segRG[rr]);
        return;
    }
    readRG(q,(q+w)/2,rr*2);
    readRG((q+w)/2+1,w,rr*2+1);
}
void readaris(int q, int w, int rr){
    if(q>r||w<l) return;
    if(q>=l&&w<=r){
        z=max(z,segaris[rr]);
        return;
    }
    readaris(q,(q+w)/2,rr*2);
    readaris((q+w)/2+1,w,rr*2+1);
}
//
void UPD(int i){
    int D;
    multiset <int>::iterator it,tt;
    multiset <pair <int, int> >::iterator IT,TT;
    tt=s.lower_bound(i);
    tt++;


    if(tt==s.end()){
        R=a+1;
    }else{
        R=(*tt);
    }
    it=s.lower_bound(i);
    if(it==s.begin()){
        L=0;
    }else{
        it--;
        L=(*it);
    }
    L++;R--;



    z=0;
    l=i+1;r=R;
    if(l<=r) read(1,za,1);
    if(r==a) z=N;
    e=z;
    z=0;
    l=L;r=i-1;
    if(l<=r) read(1,za,1);
    if(l==1) z=N;
    e=min(e,z);
    S.erase({VAL[i],i});
    S.insert({e-f[i]+1,i});
    VAL[i]=e-f[i]+1;
}
void init(int NN, std::vector<int> HH) {
    a=NN;
    for(i=1; i<=a; i++){
        f[i]=HH[i-1];
    }
}

int max_towers(int LL, int RR, int DD) {
    counter++;
    if(counter==1){
        za=1;
        while(za<a) za*=2;
        for(i=1; i<=a; i++){
            seg[za+i-1]=f[i];
        }
        for(i=za-1; i>=1; i--){
            seg[i]=max(seg[i*2],seg[i*2+1]);
        }

        for(i=1; i<=a; i++){
            PI++;P[PI]={f[i],i};
        }
        sort(P+1,P+PI+1);

        D=1;
        for(ii=1; ii<=PI; ii++){
            i=P[ii].second;
            tt=s.lower_bound(i);
            if(tt==s.end()){
                R=a+1;
            }else{
                R=(*tt);
            }
            it=s.lower_bound(i);
            if(it==s.begin()){
                L=0;
            }else{
                it--;
                L=(*it);
            }
            L++;R--;

            e=0;
            z=0;
            l=i+1;r=R;
            if(l<=r) read(1,za,1);
            if(r==a) z=N;
            if(z<f[i]+D){
                e++;
            }
            z=0;
            l=L;r=i-1;
            if(l<=r) read(1,za,1);
            if(l==1) z=N;
            if(z<f[i]+D){
                e++;
            }
            if(e>0) continue;
            s.insert(i);bo[i]=1;
        }


        for(i=1; i<=a; i++){
            pr[i]=pr[i-1]+bo[i];
        }
        /*for(i=1; i<=a; i++){
            cout<<pr[i]<<" pr ";
        }
        cout<<"\n";*/


        //
        m.clear();
        for(i=1; i<=a; i++){
            m[f[i]]=1;m[f[i]+D]=1;
        }
        zx=0;
        for(TA=m.begin(); TA!=m.end(); TA++){
            zx++;
            (*TA).second=zx;
        }

        for(i=1; i<=a; i++){
            HD[i]=m[f[i]+D];
            K[i]=m[f[i]];
        }

        for(i=1; i<=a; i++){
            lf[i]=read2(HD[i]);
            upd2(K[i],i);
        }

        /*for(i=1; i<=a; i++){
            cout<<lf[i]<<" lf ";
        }
        cout<<"\n";*/

        for(i=0; i<=200007; i++){
            fen[i]=a+1;
        }
        for(i=a; i>=1; i--){
            rg[i]=READ(HD[i]);
            upd(K[i],i);
        }

        for(i=1; i<=a; i++){
            segLF[za+i-1]=lf[i];
        }

        for(i=za-1; i>=1; i--){
            segLF[i]=max(segLF[i*2],segLF[i*2+1]);
        }

        for(i=1; i<=a; i++){
            segRG[za+i-1]=rg[i];
        }
        for(i=za-1; i>=1; i--){
            segRG[i]=min(segRG[i*2],segRG[i*2+1]);
        }



        //return 0;

        for(i=0; i<=200007; i++){
            fen[i]=fen2[i]=0;
        }
        for(i=1; i<=a; i++){
            aris[i]=read2(HD[i]);
            zx=read3(K[i]);
            /*cout<<i<<" "<<zx<<"\n";
            cout<<K[i]<<" "<<HD[i]<<"\n";*/
            upd2(K[i],zx);
            upd3(HD[i],i);
        }
        //return 0;

        for(i=1; i<=a; i++){
            segaris[za+i-1]=aris[i];
        }
        for(i=za-1; i>=1; i--){
            segaris[i]=max(segaris[i*2],segaris[i*2+1]);
        }
        //return 0;
    }











    //




    pas=1;LL++;RR++;
    L=LL;R=RR;D=DD;
    if(L==R) return 1;

    zx=pr[R]-pr[L-1];
    //cout<<zx<<"\n";
    it=s.lower_bound(L);

    l=L;r=lf[(*it)]-1;z=a+2;
    if(l<=r) readRG(1,za,1);
    if(z<(*it)) zx++;

    it=s.lower_bound(R+1);
    if(it!=s.end()){
        it--;

        l=rg[(*it)]+1;r=R;z=0;
        if(l<=r) readLF(1,za,1);
        if((*it)<z) zx++;
    }

    pas=max(pas,zx);

    //da-check-e 2-ic tu sheidzleba

    l=L;r=R;z=0;
    readaris(1,za,1);
    if(z>=L) pas=max(pas,2);
    return pas;
}

Compilation message

towers.cpp: In function 'void UPD(int)':
towers.cpp:105:9: warning: unused variable 'D' [-Wunused-variable]
  105 |     int D;
      |         ^

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 466 ms 11752 KB 2nd lines differ - on the 1st token, expected: '1', found: '2'
2 Halted 0 ms 0 KB -

Subtask #2
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 2000 KB 1st lines differ - on the 1st token, expected: '13', found: '16'
2 Halted 0 ms 0 KB -

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 2000 KB 1st lines differ - on the 1st token, expected: '13', found: '16'
2 Halted 0 ms 0 KB -

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 907 ms 20576 KB Output is correct
2 Correct 1055 ms 20772 KB Output is correct
3 Correct 1030 ms 20672 KB Output is correct
4 Correct 892 ms 21656 KB Output is correct
5 Correct 1020 ms 21500 KB Output is correct
6 Correct 949 ms 21440 KB Output is correct
7 Correct 996 ms 21440 KB Output is correct
8 Correct 744 ms 18752 KB Output is correct
9 Correct 838 ms 18784 KB Output is correct
10 Correct 736 ms 18732 KB Output is correct
11 Correct 898 ms 18748 KB Output is correct
12 Correct 881 ms 18700 KB Output is correct
13 Correct 741 ms 18776 KB Output is correct
14 Correct 1 ms 1872 KB Output is correct
15 Correct 3 ms 2256 KB Output is correct
16 Correct 2 ms 2256 KB Output is correct
17 Correct 163 ms 20712 KB Output is correct
18 Correct 162 ms 21440 KB Output is correct
19 Correct 158 ms 21492 KB Output is correct
20 Correct 88 ms 18780 KB Output is correct
21 Correct 106 ms 18788 KB Output is correct
22 Correct 164 ms 20728 KB Output is correct
23 Correct 157 ms 21496 KB Output is correct
24 Correct 165 ms 21488 KB Output is correct
25 Correct 95 ms 18748 KB Output is correct
26 Correct 93 ms 18780 KB Output is correct
27 Correct 3 ms 2256 KB Output is correct
28 Correct 3 ms 2256 KB Output is correct
29 Correct 3 ms 2256 KB Output is correct
30 Correct 2 ms 2256 KB Output is correct
31 Correct 2 ms 2144 KB Output is correct
32 Correct 4 ms 2384 KB Output is correct
33 Correct 3 ms 2256 KB Output is correct
34 Correct 3 ms 2296 KB Output is correct
35 Correct 2 ms 2256 KB Output is correct
36 Correct 3 ms 2256 KB Output is correct

Subtask #5
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 260 ms 6428 KB 1st lines differ - on the 1st token, expected: '7197', found: '8004'
2 Halted 0 ms 0 KB -

Subtask #6
0 / 19.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 2000 KB 1st lines differ - on the 1st token, expected: '13', found: '16'
2 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Incorrect 466 ms 11752 KB 2nd lines differ - on the 1st token, expected: '1', found: '2'
2 Halted 0 ms 0 KB -