답안 #440642

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
440642 2021-07-02T15:23:18 Z peijar Candies (JOI18_candies) C++17
100 / 100
693 ms 28500 KB
#include <bits/stdc++.h>
#define int long long
using namespace std;

signed main(void) {
  ios_base::sync_with_stdio(false);
  cin.tie(0);

  int nbElem;
  cin >> nbElem;

  vector<int> val(nbElem);
  for (auto &v : val)
    cin >> v;

  set<pair<int, int>> choices, revChoices;
  for (int iEl = 0; iEl < nbElem; ++iEl) {
    choices.emplace(val[iEl], iEl);
    revChoices.emplace(iEl, val[iEl]);
  }
  choices.emplace(-1e18, -1);
  choices.emplace(-1e18, nbElem);
  revChoices.emplace(-1, -1e18);
  revChoices.emplace(nbElem, -1e18);

  int curRet = 0;
  for (int prend = 1; prend <= (nbElem + 1) / 2; ++prend) {
    auto [gain, pos] = *choices.rbegin();
    curRet += gain;
    cout << curRet << '\n';
    if (prend + 1 > (nbElem + 1) / 2)
      break;

    choices.erase({gain, pos});
    revChoices.erase({pos, gain});
    auto it = revChoices.lower_bound({pos, -(int)1e18});
    it--;
    int gainNext = -gain;
    gainNext += it->second;
    choices.erase({it->second, it->first});
    revChoices.erase(it++);
    gainNext += it->second;
    choices.erase({it->second, it->first});
    revChoices.erase(it);
    choices.emplace(gainNext, pos);
    revChoices.emplace(pos, gainNext);
  }
}
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 588 KB Output is correct
2 Correct 2 ms 588 KB Output is correct
3 Correct 2 ms 588 KB Output is correct
4 Correct 2 ms 588 KB Output is correct
5 Correct 2 ms 588 KB Output is correct
6 Correct 3 ms 588 KB Output is correct
7 Correct 2 ms 588 KB Output is correct
8 Correct 2 ms 588 KB Output is correct
9 Correct 2 ms 588 KB Output is correct
10 Correct 2 ms 588 KB Output is correct
11 Correct 3 ms 588 KB Output is correct
12 Correct 3 ms 588 KB Output is correct
13 Correct 2 ms 588 KB Output is correct
14 Correct 2 ms 588 KB Output is correct
15 Correct 3 ms 588 KB Output is correct
16 Correct 3 ms 588 KB Output is correct
17 Correct 2 ms 588 KB Output is correct
18 Correct 3 ms 588 KB Output is correct
19 Correct 2 ms 588 KB Output is correct
20 Correct 2 ms 588 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 588 KB Output is correct
2 Correct 2 ms 588 KB Output is correct
3 Correct 2 ms 588 KB Output is correct
4 Correct 2 ms 588 KB Output is correct
5 Correct 2 ms 588 KB Output is correct
6 Correct 3 ms 588 KB Output is correct
7 Correct 2 ms 588 KB Output is correct
8 Correct 2 ms 588 KB Output is correct
9 Correct 2 ms 588 KB Output is correct
10 Correct 2 ms 588 KB Output is correct
11 Correct 3 ms 588 KB Output is correct
12 Correct 3 ms 588 KB Output is correct
13 Correct 2 ms 588 KB Output is correct
14 Correct 2 ms 588 KB Output is correct
15 Correct 3 ms 588 KB Output is correct
16 Correct 3 ms 588 KB Output is correct
17 Correct 2 ms 588 KB Output is correct
18 Correct 3 ms 588 KB Output is correct
19 Correct 2 ms 588 KB Output is correct
20 Correct 2 ms 588 KB Output is correct
21 Correct 607 ms 28472 KB Output is correct
22 Correct 629 ms 28480 KB Output is correct
23 Correct 666 ms 28356 KB Output is correct
24 Correct 274 ms 28364 KB Output is correct
25 Correct 305 ms 28404 KB Output is correct
26 Correct 271 ms 28444 KB Output is correct
27 Correct 307 ms 28400 KB Output is correct
28 Correct 285 ms 28352 KB Output is correct
29 Correct 294 ms 28292 KB Output is correct
30 Correct 319 ms 28324 KB Output is correct
31 Correct 306 ms 28468 KB Output is correct
32 Correct 304 ms 28412 KB Output is correct
33 Correct 480 ms 28316 KB Output is correct
34 Correct 417 ms 28352 KB Output is correct
35 Correct 433 ms 28356 KB Output is correct
36 Correct 637 ms 28344 KB Output is correct
37 Correct 628 ms 28420 KB Output is correct
38 Correct 693 ms 28356 KB Output is correct
39 Correct 321 ms 28284 KB Output is correct
40 Correct 272 ms 28372 KB Output is correct
41 Correct 279 ms 28360 KB Output is correct
42 Correct 284 ms 28368 KB Output is correct
43 Correct 289 ms 28348 KB Output is correct
44 Correct 284 ms 28376 KB Output is correct
45 Correct 296 ms 28444 KB Output is correct
46 Correct 299 ms 28388 KB Output is correct
47 Correct 296 ms 28356 KB Output is correct
48 Correct 447 ms 28500 KB Output is correct
49 Correct 432 ms 28420 KB Output is correct
50 Correct 435 ms 28356 KB Output is correct