oj.uz

Submission #462514

# Submission time Handle Problem Language Result Execution time Memory
462514 2021-08-10T16:55:49 Z Mounir Snowball (JOI21_ho_t2) C++14
33 / 100
 2500 ms 6596 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<long long, long long>
#define deb first
#define fin second
//#define int long long
using namespace std;
 
const int N = 3e5;
const long long OO = 1e18;
pii inters[N];
int nBoules, nJours;
 
int getInstant(long long posInter, long long posBoule){
      long long delta = -(posBoule - posInter);
      int gauche = 0, droite = nJours + 1;
      while (droite > gauche){
            int mid = (gauche + droite)/2;
            if (inters[mid].deb <= delta && inters[mid].fin > delta)
                  droite = mid;
            else
                  gauche = mid + 1;
      }
      return gauche;
}

long long 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];
 
      long long posCur = 0;
      inters[0] = {0, -1};
      for (int iJour = 1; iJour <= nJours; ++iJour){
            long long 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;
      }

      for (int iBoule = 0; iBoule < nBoules; ++iBoule){
            long long gauche = boules[iBoule] + inters[nJours].deb, droite = boules[iBoule]; //Gauche
 
            while (droite > gauche){
                  long long mid = floor((gauche + droite)/double(2));
              ///    cout << "dicho " << gauche << " " << droite << " " << mid << endl;
 
                  int moment = getInstant(mid, boules[iBoule]);

                  if (moment <= nJours && (iBoule == 0 || moment < getInstant(mid, boules[iBoule - 1])))
                        droite = mid;
                  else
                        gauche = mid + 1;
            }
 
            long long deb = gauche;
            gauche = boules[iBoule] - 1, droite = boules[iBoule] + inters[nJours].fin;
            while (droite > gauche){
                  long long 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 1 ms 332 KB Output is correct
3 Correct 2 ms 332 KB Output is correct
4 Correct 16 ms 384 KB Output is correct
5 Correct 14 ms 384 KB Output is correct
6 Correct 15 ms 384 KB Output is correct
7 Correct 11 ms 380 KB Output is correct
8 Correct 11 ms 388 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 332 KB Output is correct
15 Correct 16 ms 388 KB Output is correct
16 Correct 15 ms 384 KB Output is correct
17 Correct 11 ms 332 KB Output is correct
18 Correct 1 ms 204 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 16 ms 384 KB Output is correct
5 Correct 14 ms 384 KB Output is correct
6 Correct 15 ms 384 KB Output is correct
7 Correct 11 ms 380 KB Output is correct
8 Correct 11 ms 388 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 332 KB Output is correct
15 Correct 16 ms 388 KB Output is correct
16 Correct 15 ms 384 KB Output is correct
17 Correct 11 ms 332 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 4 ms 332 KB Output is correct
20 Correct 31 ms 3404 KB Output is correct
21 Correct 30 ms 3324 KB Output is correct
22 Correct 33 ms 3328 KB Output is correct
23 Correct 53 ms 3396 KB Output is correct
24 Correct 285 ms 3804 KB Output is correct
25 Execution timed out 2570 ms 6596 KB Time limit exceeded
26 Halted 0 ms 0 KB -