oj.uz

Submission #462533

# Submission time Handle Problem Language Result Execution time Memory
462533 2021-08-10T17:32:31 Z Mounir Snowball (JOI21_ho_t2) C++14
33 / 100
 2500 ms 6576 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;
int debs[N], fins[N];
int nBoules, nJours;
 
inline int getInstant(int delta){
      if (delta < 0)
            return lower_bound(debs, debs + nJours + 1, -delta) - debs;
      else
            return upper_bound(fins, fins + nJours + 1, delta) - fins;
}
 
int boules[N]; 
 
signed main(){ 
      ios::sync_with_stdio(false);
      cin.tie(nullptr);
      cout.tie(nullptr);
 
      cin >> nBoules >> nJours;
      for (int i = 0; i < nBoules; ++i)
            cin >> boules[i];
 
      int posCur = 0;
      debs[0] = 0; fins[0] = -1;
      for (int iJour = 1; iJour <= nJours; ++iJour){
            int delta; cin >> delta;
            posCur += delta;
            debs[iJour] = -min(-debs[iJour - 1], posCur);
            fins[iJour] = max(0ll, max(posCur, fins[iJour - 1]));
      }
 
    //  int debut[nBoules];
 
      for (int iBoule = 0; iBoule < nBoules; ++iBoule){
            int gauche = - debs[nJours], droite = 0; //Gauche
            if (iBoule != 0)
                  chmax(gauche, boules[iBoule - 1] - boules[iBoule]);
            //in
 
            while (droite > gauche){
                  int mid = floor((gauche + droite)/double(2));
                  int moment = getInstant(mid);
 
                  if (moment <= nJours && (iBoule == 0 || moment < getInstant(mid + boules[iBoule] - boules[iBoule - 1])))
                        droite = mid;
                  else
                        gauche = mid + 1;
            }
 
           // debut[iBoule] = ga
 
            int deb = gauche;
            gauche = - 1, droite = fins[nJours];
            if (iBoule != nBoules - 1)
                  chmin(droite, boules[iBoule + 1] - boules[iBoule]);
 
            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);
 
                  if (moment <= nJours && (iBoule == nBoules - 1 || moment < getInstant(mid + boules[iBoule] - 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 1 ms 332 KB Output is correct
3 Correct 2 ms 332 KB Output is correct
4 Correct 17 ms 332 KB Output is correct
5 Correct 13 ms 332 KB Output is correct
6 Correct 12 ms 460 KB Output is correct
7 Correct 12 ms 460 KB Output is correct
8 Correct 10 ms 332 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 1 ms 204 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 2 ms 332 KB Output is correct
15 Correct 16 ms 388 KB Output is correct
16 Correct 14 ms 332 KB Output is correct
17 Correct 14 ms 392 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 4 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 1 ms 332 KB Output is correct
3 Correct 2 ms 332 KB Output is correct
4 Correct 17 ms 332 KB Output is correct
5 Correct 13 ms 332 KB Output is correct
6 Correct 12 ms 460 KB Output is correct
7 Correct 12 ms 460 KB Output is correct
8 Correct 10 ms 332 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 1 ms 204 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 2 ms 332 KB Output is correct
15 Correct 16 ms 388 KB Output is correct
16 Correct 14 ms 332 KB Output is correct
17 Correct 14 ms 392 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 4 ms 332 KB Output is correct
20 Correct 32 ms 3432 KB Output is correct
21 Correct 30 ms 3380 KB Output is correct
22 Correct 32 ms 3408 KB Output is correct
23 Correct 60 ms 3448 KB Output is correct
24 Correct 259 ms 3724 KB Output is correct
25 Correct 2216 ms 6560 KB Output is correct
26 Correct 2187 ms 6524 KB Output is correct
27 Correct 2082 ms 6316 KB Output is correct
28 Correct 2024 ms 6332 KB Output is correct
29 Correct 1950 ms 6184 KB Output is correct
30 Correct 1310 ms 5740 KB Output is correct
31 Correct 477 ms 5492 KB Output is correct
32 Correct 385 ms 5316 KB Output is correct
33 Correct 198 ms 964 KB Output is correct
34 Correct 2087 ms 6496 KB Output is correct
35 Correct 2025 ms 6344 KB Output is correct
36 Correct 2233 ms 6576 KB Output is correct
37 Correct 2084 ms 6492 KB Output is correct
38 Correct 2122 ms 6432 KB Output is correct
39 Correct 2108 ms 6396 KB Output is correct
40 Correct 1390 ms 6512 KB Output is correct
41 Execution timed out 2564 ms 3404 KB Time limit exceeded
42 Halted 0 ms 0 KB -