oj.uz

Submission #462515

# Submission time Handle Problem Language Result Execution time Memory
462515 2021-08-10T16:58:23 Z Mounir Snowball (JOI21_ho_t2) C++14
33 / 100
 2500 ms 6640 KB 
#include <bits/stdc++.h>
#define sz(x) (int)x.size()
#define chmin(x, v) x = min(x, v)
#define chmax(x, v) x = max(x, v)
#define all(x) x.begin(), x.end()
#define pb push_back
#define pii pair<int, int>
#define deb first
#define fin second
#define int long long
using namespace std;
 
const int N = 5e5, OO = 1e18;
pii inters[N];
int nBoules, nJours;
 
int getInstant(int posInter, int posBoule){
      int delta = -(posBoule - posInter);
      int gauche = 0, droite = nJours + 1;
      while (droite > gauche){
            int mid = (gauche + droite)/2;
            if ((delta < 0 && inters[mid].deb <= delta) || (delta >= 0 && inters[mid].fin > delta))
                  droite = mid;
            else
                  gauche = mid + 1;
      }
      return gauche;
}
 
 
signed main(){ 
      ios::sync_with_stdio(false);
      cin.tie(nullptr);
      cout.tie(nullptr);
 
      cin >> nBoules >> nJours;
      vector<int> boules(nBoules);
      for (int& boule : boules)
            cin >> boule;
 
      int posCur = 0;
      inters[0] = {0, -1};
      for (int iJour = 1; iJour <= nJours; ++iJour){
            int delta; cin >> delta;
            posCur += delta;
            inters[iJour] = {min(inters[iJour - 1].deb, posCur), max(max(inters[iJour - 1].fin, posCur), 0ll)};
           // cout << "inter " << inters[iJour].deb << " " << inters[iJour].fin << endl;
      }

    //  int debut[nBoules];
 
      for (int iBoule = 0; iBoule < nBoules; ++iBoule){
            int gauche = boules[iBoule] + inters[nJours].deb, droite = boules[iBoule]; //Gauche
 
            while (droite > gauche){
                  int mid = floor((gauche + droite)/double(2));
                  int moment = getInstant(mid, boules[iBoule]);
 
                  if (moment <= nJours && (iBoule == 0 || moment < getInstant(mid, boules[iBoule - 1])))
                        droite = mid;
                  else
                        gauche = mid + 1;
            }

           // debut[iBoule] = ga
 
            int deb = gauche;
            gauche = boules[iBoule] - 1, droite = boules[iBoule] + inters[nJours].fin;
            while (droite > gauche){
                  int mid =  floor((gauche + droite)/double(2)) + 1;
                //  cout << "dicho " << gauche << " " << droite << " " << mid << endl;
                  //cout << getInstant(mid, boules[iBoule]) << endl << endl;
                  int moment = getInstant(mid, boules[iBoule]);
 
                  if (moment <= nJours && (iBoule == nBoules - 1 || moment < getInstant(mid, boules[iBoule + 1])))
                        gauche = mid;
                  else
                        droite = mid - 1;
            }
            
            cout << gauche - deb + 1 << endl;
        //    cout << couverts[iBoule].deb << " " << couverts[iBoule].fin << endl;
      }
      return 0;
 
}

Subtask #1
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 2 ms 332 KB Output is correct
3 Correct 2 ms 332 KB Output is correct
4 Correct 16 ms 332 KB Output is correct
5 Correct 14 ms 380 KB Output is correct
6 Correct 12 ms 332 KB Output is correct
7 Correct 11 ms 332 KB Output is correct
8 Correct 11 ms 380 KB Output is correct
9 Correct 9 ms 332 KB Output is correct
10 Correct 5 ms 332 KB Output is correct
11 Correct 4 ms 332 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 2 ms 204 KB Output is correct
15 Correct 18 ms 380 KB Output is correct
16 Correct 15 ms 380 KB Output is correct
17 Correct 11 ms 332 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 6 ms 332 KB Output is correct

Subtask #2
0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 2 ms 332 KB Output is correct
3 Correct 2 ms 332 KB Output is correct
4 Correct 16 ms 332 KB Output is correct
5 Correct 14 ms 380 KB Output is correct
6 Correct 12 ms 332 KB Output is correct
7 Correct 11 ms 332 KB Output is correct
8 Correct 11 ms 380 KB Output is correct
9 Correct 9 ms 332 KB Output is correct
10 Correct 5 ms 332 KB Output is correct
11 Correct 4 ms 332 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 2 ms 204 KB Output is correct
15 Correct 18 ms 380 KB Output is correct
16 Correct 15 ms 380 KB Output is correct
17 Correct 11 ms 332 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 6 ms 332 KB Output is correct
20 Correct 31 ms 3392 KB Output is correct
21 Correct 30 ms 3416 KB Output is correct
22 Correct 36 ms 3352 KB Output is correct
23 Correct 57 ms 3476 KB Output is correct
24 Correct 278 ms 3748 KB Output is correct
25 Correct 2400 ms 6640 KB Output is correct
26 Correct 2343 ms 6528 KB Output is correct
27 Correct 2237 ms 6496 KB Output is correct
28 Correct 2197 ms 6424 KB Output is correct
29 Correct 2040 ms 6208 KB Output is correct
30 Correct 1357 ms 5856 KB Output is correct
31 Correct 487 ms 5400 KB Output is correct
32 Correct 394 ms 5488 KB Output is correct
33 Correct 192 ms 1164 KB Output is correct
34 Correct 2282 ms 6620 KB Output is correct
35 Correct 2228 ms 6336 KB Output is correct
36 Correct 2396 ms 6548 KB Output is correct
37 Correct 2232 ms 6360 KB Output is correct
38 Correct 2308 ms 6428 KB Output is correct
39 Correct 2223 ms 6412 KB Output is correct
40 Correct 1561 ms 6284 KB Output is correct
41 Execution timed out 2566 ms 3384 KB Time limit exceeded
42 Halted 0 ms 0 KB -