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Submission #803111

# Submission time Handle Problem Language Result Execution time Memory
803111 2023-08-02T22:11:03 Z Augustyn Palindromi (COCI22_palindromi) C++17
30 / 110
 1000 ms 184840 KB 
#include<iostream>
#include<vector>
#include<unordered_map>
using namespace std;
struct pal_tree_node
{
    int dlug;
    long long hasz;
    pal_tree_node *shrt[2], *syn[2];
    pal_tree_node(int xd,long long hz)
    {
        dlug=xd;
        hasz=hz;
        shrt[0]=shrt[1]=syn[0]=syn[1]=NULL;
    }
};
struct lista
{
    int wart;
    int l, r;
    lista(int a)
    {
        wart=a;
        l=-1;
        r=-1;
    }
    lista()
    {
        wart=0;
        l=-1;
        r=-1;
    }
};

vector<int>nal;
vector<bool>seq;
vector<pal_tree_node*>pref,suf;
pal_tree_node* pust;
pal_tree_node* jz[2];
void ini(int n)
{
    nal.resize(n);
    seq.resize(n);
    pref.resize(n);
    suf.resize(n);
    pust = new pal_tree_node(0,0);
    jz[0] = new pal_tree_node(1,50000000000001);
    jz[1] = new pal_tree_node(1,50000000000002);
    jz[0]->shrt[0]=jz[1]->shrt[1]=pust;
}
int znajdz(int ter)
{
    if(nal[ter]==ter)
        return ter;
    nal[ter]=znajdz(nal[ter]);
    return nal[ter];
}
int main()
{
    ios_base::sync_with_stdio(0);
    int n;
    cin>>n;
    ini(n);
    vector<lista>akt_ciag(n);
    vector<pair<int,int>>po(n);
    vector<int>wielk(n,1);
    vector<unordered_map<long long,bool>>mapy(n);
    vector<vector<long long>>tusa(n);
    vector<int>konc(n),gdzie_w_konc(n);
    for(int i=0;i<n;++i)
    {
        char wcz;
        cin>>wcz;
        wcz-='0';
        seq[i]=wcz;
        nal[i]=i;
        pref[i]=suf[i]=jz[wcz];
        akt_ciag[i].l=akt_ciag[i].r=-1;
        akt_ciag[i].wart=i;
        po[i].first=po[i].second=i;
        tusa[i].push_back(wcz+1);
        mapy[i][wcz+1]=1;
        wielk[i]=i;
    }
    vector<pair<int,int>>zlacz(n-1);
    for(int ile_merge=0;ile_merge<n-1;++ile_merge)
    {
        cin>>zlacz[ile_merge].first>>zlacz[ile_merge].second;
        --zlacz[ile_merge].first; --zlacz[ile_merge].second;
        int a,b;
        a=zlacz[ile_merge].first; b=zlacz[ile_merge].second;
        a=znajdz(a);
        b=znajdz(b);
        akt_ciag[po[a].second].r=po[b].first;
        akt_ciag[po[b].first].l=po[a].second;
        po[a].second=po[b].second;
        nal[b]=a;
    }
    int tut=po[znajdz(0)].first;
    for(int i=0;i<n;++i)
    {
        gdzie_w_konc[tut]=i;
        konc[i]=tut;
        po[tut].first=po[tut].second=i;
        tut=akt_ciag[tut].r;
    }

    for(int i=0;i<n;++i)
    {
        akt_ciag[i].l=akt_ciag[i].r=-1;
        nal[i]=i;
        po[i].first=po[i].second=gdzie_w_konc[i];
    }
    for(int ile_merge=0;ile_merge<n-1;++ile_merge)
    {
        int a,b;
        a=zlacz[ile_merge].first; b=zlacz[ile_merge].second;
        a=znajdz(a);
        b=znajdz(b);
        
        if(wielk[a]<=wielk[b])
        {
            pal_tree_node* najd=pref[b];
            for(int i=po[a].second;i>=po[a].first;--i)
            {
                if(najd->dlug==po[b].second-i)
                {
                    najd=najd->shrt[seq[konc[i]]];
                    if(najd==NULL)
                        najd=pust;
                }
                if(najd->dlug!=0)
                    if(seq[konc[i+1+(najd->dlug)]]!=seq[konc[i]])
                    {
                        najd=najd->shrt[seq[konc[i]]];
                        if(najd==NULL)
                            najd=pust;
                    }
                if(najd->dlug==0)
                {
                    if(seq[konc[i+1]]==seq[konc[i]])
                    {
                        //dwie takie same
                        if(pust->syn[seq[konc[i]]]==NULL)
                        {
                            pal_tree_node* pom= new pal_tree_node(2,(seq[konc[i]]+1)*4);
                            pust->syn[seq[konc[i]]]=pom;
                            pom->shrt[seq[konc[i]]]=jz[seq[konc[i]]];
                        }
                        najd=pust->syn[seq[konc[i]]];
                        if(mapy[b][(seq[konc[i]]+1)*4]!=1)
                        {
                            mapy[b][(seq[konc[i]]+1)*4]=1;
                            tusa[b].push_back((seq[konc[i]]+1)*4);
                        }
                    }
                    else
                    {
                        //jeden taki sam
                        najd=jz[seq[konc[i]]];
                        if(mapy[b][seq[konc[i]]+1]!=1)
                        {
                            mapy[b][seq[konc[i]]+1]=1;
                            tusa[b].push_back(seq[konc[i]]+1);
                        }
                    }
                }
                else
                {
                    //dodajemy normalnie
                    if(najd->syn[seq[konc[i]]]==NULL)
                    {
                        //dodaj wierz
                        pal_tree_node* pom= new pal_tree_node((najd->dlug)+2,(najd->hasz)*3+seq[konc[i]]+1);
                        najd->syn[seq[konc[i]]]=pom;
                        //znajdz pom->shrt
                        pal_tree_node* pom2=najd->shrt[seq[konc[i]]];
                        if(pom2==NULL)
                            pom2=jz[seq[konc[i]]];
                        else
                            pom2=pom2->syn[seq[konc[i]]];
                        //no i teraz musze wiedziec co jest po nim
                        int x=seq[konc[i+pom2->dlug]];
                        pom->shrt[x]=pom2;
                        pom2=pom2->shrt[1-x];
                        pom->shrt[1-x]=pom2;
                    }
                    najd=najd->syn[seq[konc[i]]];
                    if(mapy[b][najd->hasz]!=1)
                    {
                        mapy[b][najd->hasz]=1;
                        tusa[b].push_back(najd->hasz);
                    }
                }
                //sprawdz czy najd jest sufixem b
                if(najd->dlug==po[b].second-i+1)
                    suf[b]=najd;
            }
            pref[b]=najd;
            po[b].first=po[a].first;
            nal[a]=b;
            for(auto i:tusa[a])
            {
                if(mapy[b][i]!=1)
                {
                    mapy[b][i]=1;
                    tusa[b].push_back(i);
                }
            }
            a=b;
        }
        else
        {
            pal_tree_node* najd=suf[a];
            for(int i=po[b].first;i<=po[b].second;++i)
            {
                if(najd->dlug==i-po[a].first)
                {
                    najd=najd->shrt[seq[konc[i]]];
                    if(najd==NULL)
                        najd=pust;
                }
                if(najd->dlug!=0)
                    if(seq[konc[i-1-(najd->dlug)]]!=seq[konc[i]])
                    {
                        najd=najd->shrt[seq[konc[i]]];
                        if(najd==NULL)
                            najd=pust;
                    }
                if(najd->dlug==0)
                {
                    if(seq[konc[i-1]]==seq[konc[i]])
                    {
                        //dwie takie same
                        if(pust->syn[seq[konc[i]]]==NULL)
                        {
                            pal_tree_node* pom= new pal_tree_node(2,(seq[konc[i]]+1)*4);
                            pust->syn[seq[konc[i]]]=pom;
                            pom->shrt[seq[konc[i]]]=jz[seq[konc[i]]];
                        }
                        najd=pust->syn[seq[konc[i]]];
                        if(mapy[a][(seq[konc[i]]+1)*4]!=1)
                        {
                            mapy[a][(seq[konc[i]]+1)*4]=1;
                            tusa[a].push_back((seq[konc[i]]+1)*4);
                        }
                    }
                    else
                    {
                        //jeden taki sam
                        najd=jz[seq[konc[i]]];
                        if(mapy[a][seq[konc[i]]+1]!=1)
                        {
                            mapy[a][seq[konc[i]]+1]=1;
                            tusa[a].push_back(seq[konc[i]]+1);
                        }
                    }
                }
                else
                {
                    //dodajemy normalnie
                    if(najd->syn[seq[konc[i]]]==NULL)
                    {
                        //dodaj wierz
                        pal_tree_node* pom= new pal_tree_node((najd->dlug)+2,(najd->hasz)*3+seq[konc[i]]+1);
                        najd->syn[seq[konc[i]]]=pom;
                        //znajdz pom->shrt
                        pal_tree_node* pom2=najd->shrt[seq[konc[i]]];
                        if(pom2==NULL)
                            pom2=jz[seq[konc[i]]];
                        else
                            pom2=pom2->syn[seq[konc[i]]];
                        //no i teraz musze wiedziec co jest po nim
                        int x=seq[konc[i-pom2->dlug]];
                        pom->shrt[x]=pom2;
                        pom2=pom2->shrt[1-x];
                        pom->shrt[1-x]=pom2;
                    }
                    najd=najd->syn[seq[konc[i]]];
                    if(mapy[a][najd->hasz]!=1)
                    {
                        mapy[a][najd->hasz]=1;
                        tusa[a].push_back(najd->hasz);
                    }
                }
                //sprawdz czy najd jest sufixem b
                if(najd->dlug==i-po[a].first+1)
                    pref[a]=najd;
            }
            suf[a]=najd;
            //DANGER!!!
            po[a].second=po[b].second;
            nal[b]=a;
            for(auto i:tusa[b])
            {
                if(mapy[a][i]!=1)
                {
                    mapy[a][i]=1;
                    tusa[a].push_back(i);
                }
            }
            b=a;
        }
        wielk[a]=po[a].second-po[a].first+1;
        cout<<tusa[a].size()<<'\n';
    }
    return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:77:27: warning: array subscript has type 'char' [-Wchar-subscripts]
   77 |         pref[i]=suf[i]=jz[wcz];
      |                           ^~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 5 ms 2132 KB Output is correct
16 Correct 3 ms 1108 KB Output is correct
17 Correct 5 ms 1748 KB Output is correct
18 Correct 3 ms 1236 KB Output is correct
19 Correct 22 ms 8456 KB Output is correct
20 Correct 10 ms 3440 KB Output is correct
21 Correct 66 ms 22660 KB Output is correct
22 Correct 23 ms 6996 KB Output is correct
23 Correct 1 ms 596 KB Output is correct
24 Correct 1 ms 596 KB Output is correct
25 Correct 1 ms 852 KB Output is correct
26 Correct 1 ms 724 KB Output is correct

Subtask #3
0 / 30.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1094 ms 184840 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 5 ms 2132 KB Output is correct
16 Correct 3 ms 1108 KB Output is correct
17 Correct 5 ms 1748 KB Output is correct
18 Correct 3 ms 1236 KB Output is correct
19 Correct 22 ms 8456 KB Output is correct
20 Correct 10 ms 3440 KB Output is correct
21 Correct 66 ms 22660 KB Output is correct
22 Correct 23 ms 6996 KB Output is correct
23 Correct 1 ms 596 KB Output is correct
24 Correct 1 ms 596 KB Output is correct
25 Correct 1 ms 852 KB Output is correct
26 Correct 1 ms 724 KB Output is correct
27 Execution timed out 1094 ms 184840 KB Time limit exceeded
28 Halted 0 ms 0 KB -