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Submission #788764

# Submission time Handle Problem Language Result Execution time Memory
788764 2023-07-20T14:56:27 Z mosiashvililuka Radio Towers (IOI22_towers) C++17
14 / 100
 1014 ms 16948 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);


        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 501 ms 8920 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 1 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 1 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 863 ms 15964 KB Output is correct
2 Correct 1014 ms 15956 KB Output is correct
3 Correct 960 ms 16072 KB Output is correct
4 Correct 986 ms 16820 KB Output is correct
5 Correct 952 ms 16776 KB Output is correct
6 Correct 930 ms 16816 KB Output is correct
7 Correct 998 ms 16824 KB Output is correct
8 Correct 679 ms 14044 KB Output is correct
9 Correct 920 ms 13992 KB Output is correct
10 Correct 850 ms 14052 KB Output is correct
11 Correct 775 ms 14144 KB Output is correct
12 Correct 897 ms 14120 KB Output is correct
13 Correct 890 ms 14036 KB Output is correct
14 Correct 1 ms 1872 KB Output is correct
15 Correct 2 ms 2128 KB Output is correct
16 Correct 2 ms 2128 KB Output is correct
17 Correct 138 ms 16068 KB Output is correct
18 Correct 146 ms 16860 KB Output is correct
19 Correct 140 ms 16740 KB Output is correct
20 Correct 88 ms 14012 KB Output is correct
21 Correct 83 ms 14140 KB Output is correct
22 Correct 140 ms 16064 KB Output is correct
23 Correct 142 ms 16948 KB Output is correct
24 Correct 143 ms 16780 KB Output is correct
25 Correct 79 ms 14040 KB Output is correct
26 Correct 85 ms 14136 KB Output is correct
27 Correct 3 ms 2128 KB Output is correct
28 Correct 3 ms 2128 KB Output is correct
29 Correct 3 ms 2128 KB Output is correct
30 Correct 3 ms 2124 KB Output is correct
31 Correct 2 ms 2128 KB Output is correct
32 Correct 3 ms 2128 KB Output is correct
33 Correct 3 ms 2116 KB Output is correct
34 Correct 3 ms 2128 KB Output is correct
35 Correct 2 ms 2128 KB Output is correct
36 Correct 2 ms 2128 KB Output is correct

Subtask #5
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 196 ms 5304 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 1 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 501 ms 8920 KB 2nd lines differ - on the 1st token, expected: '1', found: '2'
2 Halted 0 ms 0 KB -