oj.uz

Submission #462529

# Submission time Handle Problem Language Result Execution time Memory
462529 2021-08-10T17:21:21 Z Mounir Snowball (JOI21_ho_t2) C++14
33 / 100
 2500 ms 6632 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;
 
int getInstant(int posInter, int posBoule){
      int delta = -(posBoule - posInter);
      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 = boules[iBoule] - debs[nJours], droite = boules[iBoule]; //Gauche
            if (iBoule != 0)
                  chmax(gauche, boules[iBoule - 1]);

            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] + fins[nJours];
            if (iBoule != nBoules - 1)
                  chmin(droite, boules[iBoule + 1]);

            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 1 ms 332 KB Output is correct
3 Correct 2 ms 332 KB Output is correct
4 Correct 14 ms 388 KB Output is correct
5 Correct 13 ms 392 KB Output is correct
6 Correct 11 ms 388 KB Output is correct
7 Correct 12 ms 332 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 5 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 2 ms 332 KB Output is correct
15 Correct 15 ms 332 KB Output is correct
16 Correct 13 ms 400 KB Output is correct
17 Correct 10 ms 332 KB Output is correct
18 Correct 0 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 14 ms 388 KB Output is correct
5 Correct 13 ms 392 KB Output is correct
6 Correct 11 ms 388 KB Output is correct
7 Correct 12 ms 332 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 5 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 2 ms 332 KB Output is correct
15 Correct 15 ms 332 KB Output is correct
16 Correct 13 ms 400 KB Output is correct
17 Correct 10 ms 332 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 4 ms 332 KB Output is correct
20 Correct 35 ms 3472 KB Output is correct
21 Correct 31 ms 3412 KB Output is correct
22 Correct 33 ms 3328 KB Output is correct
23 Correct 50 ms 3480 KB Output is correct
24 Correct 258 ms 3776 KB Output is correct
25 Correct 2173 ms 6632 KB Output is correct
26 Correct 2122 ms 6580 KB Output is correct
27 Correct 2049 ms 6396 KB Output is correct
28 Correct 2041 ms 6548 KB Output is correct
29 Correct 1888 ms 6120 KB Output is correct
30 Correct 1256 ms 5784 KB Output is correct
31 Correct 458 ms 5432 KB Output is correct
32 Correct 423 ms 5504 KB Output is correct
33 Correct 199 ms 956 KB Output is correct
34 Correct 2032 ms 6604 KB Output is correct
35 Correct 2008 ms 6384 KB Output is correct
36 Correct 2184 ms 6592 KB Output is correct
37 Correct 2079 ms 6400 KB Output is correct
38 Correct 2061 ms 6364 KB Output is correct
39 Correct 2108 ms 6332 KB Output is correct
40 Correct 1287 ms 6340 KB Output is correct
41 Execution timed out 2592 ms 3396 KB Time limit exceeded
42 Halted 0 ms 0 KB -