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Submission #500246

# Submission time Handle Problem Language Result Execution time Memory
500246 2021-12-30T14:02:23 Z Mounir Klasika (COCI20_klasika) C++14
110 / 110
 2981 ms 310328 KB 
#include <bits/stdc++.h>
#define all(v) v.begin(), v.end()
#define sz(x) (int)x.size()
#define pb push_back
#define pii pair<int, int>
#define chmin(x, v) x = min(x, v)
#define chmax(x, v) x = max(x, v)
#define x first
#define y second
//#define int long long
using namespace std;

const int OO = 1e9, N = 3e5, T = 30;
bitset<T> AXOR = (1 << 30) - 1;

//Plus petit dans le plus grand

struct Trie {
      vector<vector<int>> arbre;
      vector<int> dateMin, dateDico;
      vector<bitset<T>> dico;

      void init(){
            for (int i = 0; i < 2; ++i){
                  arbre.pb({0, 0});
                  dateMin.pb(OO);
            }
      }

      void ajouter(bitset<30> line, int dateAjout){
       //     cout << "ajouter " << line << " " << dateAjout << endl;
            dico.pb(line);
            string str  = line.to_string();
            reverse(all(str));
            line = (bitset<T>)str;

            dateDico.pb(dateAjout);
            int noeud = 1;
            for (int i = 0; i < T; ++i){
                  int cara = line[i];
               //   cout << noeud << " " << cara << endl;
                  if (arbre[noeud][cara] == 0){
                        arbre[noeud][cara] = sz(arbre);
                        arbre.pb({0, 0});
                        dateMin.pb(OO);
                  }

                  noeud = arbre[noeud][cara];
                  chmin(dateMin[noeud], dateAjout);
            }
      }

      bitset<T> search(bitset<30> cible, int borneSup){
        /*    string str  = cible.to_string();
            reverse(all(str));
            cible = (bitset<T>)str;
*/
            int noeud = 1;
            bitset<T> retour;
         //   cout << "recherche " << (cible^AXOR).to_ulong() << endl;
            for (int i = 0; i < T; ++i){
                  int cara = cible[i];
                  if (arbre[noeud][cara] != 0 && dateMin[arbre[noeud][cara]] <= borneSup){
                        noeud = arbre[noeud][cara];
                        retour[i] = cara;
                  }
                  else {
                        noeud = arbre[noeud][1 - cara];
                        retour[i] = 1 - cara;
                  }
           //       cout << retour[i];
            }
         //   cout << endl;
            return retour;
      }

      void fusionner(Trie autre){
            for (int i = 0; i < sz(autre.dico); ++i)
                  ajouter(autre.dico[i], autre.dateDico[i]);
      }
};

vector<Trie> parcours;
int fusion(int pere, int fils){
      if (sz(parcours[pere].dico) < sz(parcours[fils].dico))
            return fusion(fils, pere);
      parcours[pere].fusionner(parcours[fils]);
      parcours[fils] = {};
      return pere;
}

vector<int> enfants[N];
int dateAjout[N];
bitset<T> xorPref[N];

struct Req {
      int iReq;
      bitset<T> cste;
};

vector<Req> reqs[N];
bitset<T> ans[N];
vector<bitset<T>> poids[N];

void calcPref(int noeud, bitset<T> cur){
    //  cout << "calc pref" << noeud << " " << cur << endl;
      xorPref[noeud] = cur;
      for (int i = 0; i < sz(enfants[noeud]); ++i)
            calcPref(enfants[noeud][i], cur^poids[noeud][i]);
}

int dfs(int noeud){
     // cout << "dfs " << noeud << endl;
      int id = sz(parcours);
      parcours.pb({});
      parcours[id].init();
      for (int enfant : enfants[noeud])
            id = fusion(id, dfs(enfant));
      //cout << "ppf" << noeud << endl;
      parcours[id].ajouter(xorPref[noeud], dateAjout[noeud]);
     // cout << "pf " << noeud << endl;

      for (Req req : reqs[noeud]){
            ans[req.iReq] = req.cste^parcours[id].search(AXOR^req.cste, req.iReq);
            string str  = ans[req.iReq].to_string();
            reverse(all(str));
            ans[req.iReq] = (bitset<T>)str;
      }
      return id;
}


bool estReq[N];
int deb[N], daron[N];

signed main(){
      ios::sync_with_stdio(false);
      cin.tie(nullptr);
      cout.tie(nullptr);

      int nReqs; cin >> nReqs;
      int nNoeuds = 2;
      for (int iReq = 0; iReq < nReqs; ++iReq){
            string nature;
            int x, y; cin >> nature >> x >> y;
            
            if (nature == "Add"){
                  dateAjout[nNoeuds] = iReq;
                  enfants[x].pb(nNoeuds++);
                  poids[x].pb(y);
            }
            else {
                  estReq[iReq] = true;
                  deb[iReq] = x;
                  daron[iReq] = y;
            }
      }

      //cout << "bonsoir" << endl;
    //  cout << AXOR << endl;

      calcPref(1, 0);
      for (int iReq = 0; iReq < nReqs; ++iReq){
            if (!estReq[iReq]) continue;
            bitset<T> cste = xorPref[deb[iReq]];
            string str  = cste.to_string();
            reverse(all(str));
            cste = (bitset<T>)str;
            reqs[daron[iReq]].pb({iReq, cste});
      }

     // cout << "salut" << endl;

      dfs(1);
   //   for (int noeud = 1; noeud <= nNoeuds; ++noeud)
     //       cout << "xor " << noeud << " : " << xorPref[noeud] << endl;

      for (int iReq = 0; iReq < nReqs; ++iReq){
            if (estReq[iReq])
                  cout << ans[iReq].to_ulong() << endl;
      }
      return 0;   
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 21580 KB Output is correct
2 Correct 15 ms 21580 KB Output is correct
3 Correct 16 ms 21752 KB Output is correct
4 Correct 12 ms 21708 KB Output is correct
5 Correct 11 ms 21580 KB Output is correct
6 Correct 11 ms 21580 KB Output is correct
7 Correct 12 ms 21700 KB Output is correct
8 Correct 13 ms 21748 KB Output is correct
9 Correct 11 ms 21580 KB Output is correct
10 Correct 12 ms 21796 KB Output is correct
11 Correct 12 ms 21836 KB Output is correct
12 Correct 12 ms 21856 KB Output is correct

Subtask #2
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 21580 KB Output is correct
2 Correct 15 ms 21580 KB Output is correct
3 Correct 16 ms 21752 KB Output is correct
4 Correct 12 ms 21708 KB Output is correct
5 Correct 11 ms 21580 KB Output is correct
6 Correct 11 ms 21580 KB Output is correct
7 Correct 12 ms 21700 KB Output is correct
8 Correct 13 ms 21748 KB Output is correct
9 Correct 11 ms 21580 KB Output is correct
10 Correct 12 ms 21796 KB Output is correct
11 Correct 12 ms 21836 KB Output is correct
12 Correct 12 ms 21856 KB Output is correct
13 Correct 20 ms 22352 KB Output is correct
14 Correct 17 ms 23228 KB Output is correct
15 Correct 17 ms 23640 KB Output is correct
16 Correct 20 ms 24876 KB Output is correct
17 Correct 20 ms 22604 KB Output is correct
18 Correct 23 ms 23304 KB Output is correct
19 Correct 28 ms 24588 KB Output is correct
20 Correct 31 ms 24416 KB Output is correct
21 Correct 19 ms 22476 KB Output is correct
22 Correct 20 ms 23388 KB Output is correct
23 Correct 22 ms 24008 KB Output is correct
24 Correct 28 ms 24380 KB Output is correct

Subtask #3
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 629 ms 87728 KB Output is correct
2 Correct 700 ms 148800 KB Output is correct
3 Correct 678 ms 180288 KB Output is correct
4 Correct 717 ms 269308 KB Output is correct
5 Correct 1083 ms 100428 KB Output is correct
6 Correct 1715 ms 175476 KB Output is correct
7 Correct 2324 ms 200064 KB Output is correct
8 Correct 2885 ms 278284 KB Output is correct
9 Correct 884 ms 98204 KB Output is correct
10 Correct 1140 ms 167652 KB Output is correct
11 Correct 1299 ms 212712 KB Output is correct
12 Correct 1611 ms 307036 KB Output is correct

Subtask #4
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 21580 KB Output is correct
2 Correct 15 ms 21580 KB Output is correct
3 Correct 16 ms 21752 KB Output is correct
4 Correct 12 ms 21708 KB Output is correct
5 Correct 11 ms 21580 KB Output is correct
6 Correct 11 ms 21580 KB Output is correct
7 Correct 12 ms 21700 KB Output is correct
8 Correct 13 ms 21748 KB Output is correct
9 Correct 11 ms 21580 KB Output is correct
10 Correct 12 ms 21796 KB Output is correct
11 Correct 12 ms 21836 KB Output is correct
12 Correct 12 ms 21856 KB Output is correct
13 Correct 20 ms 22352 KB Output is correct
14 Correct 17 ms 23228 KB Output is correct
15 Correct 17 ms 23640 KB Output is correct
16 Correct 20 ms 24876 KB Output is correct
17 Correct 20 ms 22604 KB Output is correct
18 Correct 23 ms 23304 KB Output is correct
19 Correct 28 ms 24588 KB Output is correct
20 Correct 31 ms 24416 KB Output is correct
21 Correct 19 ms 22476 KB Output is correct
22 Correct 20 ms 23388 KB Output is correct
23 Correct 22 ms 24008 KB Output is correct
24 Correct 28 ms 24380 KB Output is correct
25 Correct 629 ms 87728 KB Output is correct
26 Correct 700 ms 148800 KB Output is correct
27 Correct 678 ms 180288 KB Output is correct
28 Correct 717 ms 269308 KB Output is correct
29 Correct 1083 ms 100428 KB Output is correct
30 Correct 1715 ms 175476 KB Output is correct
31 Correct 2324 ms 200064 KB Output is correct
32 Correct 2885 ms 278284 KB Output is correct
33 Correct 884 ms 98204 KB Output is correct
34 Correct 1140 ms 167652 KB Output is correct
35 Correct 1299 ms 212712 KB Output is correct
36 Correct 1611 ms 307036 KB Output is correct
37 Correct 661 ms 93624 KB Output is correct
38 Correct 704 ms 154704 KB Output is correct
39 Correct 688 ms 185832 KB Output is correct
40 Correct 748 ms 275272 KB Output is correct
41 Correct 1030 ms 108720 KB Output is correct
42 Correct 1669 ms 172232 KB Output is correct
43 Correct 2198 ms 178068 KB Output is correct
44 Correct 2981 ms 272408 KB Output is correct
45 Correct 773 ms 100696 KB Output is correct
46 Correct 1055 ms 171236 KB Output is correct
47 Correct 1200 ms 214576 KB Output is correct
48 Correct 1557 ms 310328 KB Output is correct