oj.uz

답안 #894229

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
894229 2023-12-28T03:01:01 Z box Passport (JOI23_passport) C++17
100 / 100
 1031 ms 93612 KB 
#include "bits/stdc++.h"
using namespace std;
 
#define FOR(i, a, b) for (int i = (a); i < (b); i++)
#define F0R(i, a) FOR(i, 0, a)
#define ROF(i, a, b) for (int i = (b)-1; i >= (a); i--)
#define R0F(i, a) ROF(i, 0, a)
 
#define ar array
#define all(v) (v).begin(), (v).end()
#define sz(v) static_cast<int>(v.size())
typedef vector<int> vi;
typedef long long ll;
 
const int N = 2e5, N_ = 1 << 18;
 
int n_;
vector<pair<int, int>> g[N_ * 2 + N];
 
vi getSegs(int l, int r) {
  vi v;
  for (l += n_, r += n_; l <= r; l >>= 1, r >>= 1) {
    if (l & 1) v.push_back(l++);
    if (~r & 1) v.push_back(r--);
  }
  return v;
}
 
int32_t main() {
  ios::sync_with_stdio(false);
  cin.tie(NULL);
  cin.exceptions(cin.failbit);
  int n;
  cin >> n;
  n_ = 1;
  while (n_ < n) n_ <<= 1;
  F0R(i, n) {
    int l, r;
    cin >> l >> r, l--, r--;
    g[n_ * 2 + i].push_back({n_ + i, 1});
    for (int v : getSegs(l, r)) g[v].push_back({n_ * 2 + i, 0});
  }
  FOR(i, 1, n_) {
    g[i << 1 | 0].push_back({i, 0});
    g[i << 1 | 1].push_back({i, 0});
  }
  static int d1[N_ * 2 + N], dn[N_ * 2 + N], d[N_ * 2 + N];
  FOR(i, 1, n_ * 2 + n)
  d1[i] = dn[i] = d[i] = N_;
  priority_queue<pair<int, int>> pq;
  pq.push({-(d1[n_ + 0] = 0), n_ + 0});
  while (sz(pq)) {
    auto [d_, i] = pq.top();
    pq.pop();
    d_ *= -1;
    if (d_ != d1[i]) continue;
    for (auto [j, w] : g[i])
      if (d1[i] + w < d1[j]) pq.push({-(d1[j] = d1[i] + w), j});
  }
  pq.push({-(dn[n_ + n - 1] = 0), n_ + n - 1});
  while (sz(pq)) {
    auto [d_, i] = pq.top();
    pq.pop();
    d_ *= -1;
    if (d_ != dn[i]) continue;
    for (auto [j, w] : g[i])
      if (dn[i] + w < dn[j]) pq.push({-(dn[j] = dn[i] + w), j});
  }
  FOR(i, 1, n_ * 2 + n) {
    d[i] = min(d[i], d1[i] + dn[i]);
    pq.push({-d[i], i});
  }
  while (sz(pq)) {
    auto [d_, i] = pq.top();
    pq.pop();
    d_ *= -1;
    if (d_ != d[i]) continue;
    for (auto [j, w] : g[i])
      if (d[i] + w < d[j]) pq.push({-(d[j] = d[i] + w), j});
  }
  int q;
  cin >> q;
  F0R(h, q) {
    int i;
    cin >> i, i--;
    cout << (d[n_ + i] == N_ ? -1 : d[n_ + i]) << '\n';
  }
}

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 23204 KB Output is correct
2 Correct 6 ms 23132 KB Output is correct
3 Correct 5 ms 23132 KB Output is correct
4 Correct 877 ms 85640 KB Output is correct
5 Correct 435 ms 66452 KB Output is correct
6 Correct 198 ms 61948 KB Output is correct
7 Correct 361 ms 77112 KB Output is correct
8 Correct 212 ms 75500 KB Output is correct

Subtask #2
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 23132 KB Output is correct
2 Correct 6 ms 23208 KB Output is correct
3 Correct 5 ms 23160 KB Output is correct
4 Correct 5 ms 23204 KB Output is correct
5 Correct 5 ms 23132 KB Output is correct
6 Correct 5 ms 23132 KB Output is correct
7 Correct 5 ms 23208 KB Output is correct
8 Correct 5 ms 23132 KB Output is correct
9 Correct 5 ms 23132 KB Output is correct
10 Correct 5 ms 23132 KB Output is correct
11 Correct 5 ms 23132 KB Output is correct
12 Correct 5 ms 23132 KB Output is correct
13 Correct 5 ms 23132 KB Output is correct
14 Correct 5 ms 23132 KB Output is correct
15 Correct 6 ms 23196 KB Output is correct

Subtask #3
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 23132 KB Output is correct
2 Correct 6 ms 23208 KB Output is correct
3 Correct 5 ms 23160 KB Output is correct
4 Correct 5 ms 23204 KB Output is correct
5 Correct 5 ms 23132 KB Output is correct
6 Correct 5 ms 23132 KB Output is correct
7 Correct 5 ms 23208 KB Output is correct
8 Correct 5 ms 23132 KB Output is correct
9 Correct 5 ms 23132 KB Output is correct
10 Correct 5 ms 23132 KB Output is correct
11 Correct 5 ms 23132 KB Output is correct
12 Correct 5 ms 23132 KB Output is correct
13 Correct 5 ms 23132 KB Output is correct
14 Correct 5 ms 23132 KB Output is correct
15 Correct 6 ms 23196 KB Output is correct
16 Correct 15 ms 23896 KB Output is correct
17 Correct 9 ms 23896 KB Output is correct
18 Correct 11 ms 23896 KB Output is correct
19 Correct 12 ms 23900 KB Output is correct
20 Correct 14 ms 23644 KB Output is correct
21 Correct 17 ms 23716 KB Output is correct
22 Correct 19 ms 23900 KB Output is correct
23 Correct 12 ms 23896 KB Output is correct
24 Correct 10 ms 23900 KB Output is correct

Subtask #4
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 23132 KB Output is correct
2 Correct 6 ms 23208 KB Output is correct
3 Correct 5 ms 23160 KB Output is correct
4 Correct 5 ms 23204 KB Output is correct
5 Correct 5 ms 23132 KB Output is correct
6 Correct 5 ms 23132 KB Output is correct
7 Correct 5 ms 23208 KB Output is correct
8 Correct 5 ms 23132 KB Output is correct
9 Correct 5 ms 23132 KB Output is correct
10 Correct 5 ms 23132 KB Output is correct
11 Correct 5 ms 23132 KB Output is correct
12 Correct 5 ms 23132 KB Output is correct
13 Correct 5 ms 23132 KB Output is correct
14 Correct 5 ms 23132 KB Output is correct
15 Correct 6 ms 23196 KB Output is correct
16 Correct 15 ms 23896 KB Output is correct
17 Correct 9 ms 23896 KB Output is correct
18 Correct 11 ms 23896 KB Output is correct
19 Correct 12 ms 23900 KB Output is correct
20 Correct 14 ms 23644 KB Output is correct
21 Correct 17 ms 23716 KB Output is correct
22 Correct 19 ms 23900 KB Output is correct
23 Correct 12 ms 23896 KB Output is correct
24 Correct 10 ms 23900 KB Output is correct
25 Correct 6 ms 23132 KB Output is correct
26 Correct 5 ms 22940 KB Output is correct
27 Correct 10 ms 23896 KB Output is correct
28 Correct 9 ms 23776 KB Output is correct
29 Correct 7 ms 23632 KB Output is correct
30 Correct 10 ms 23640 KB Output is correct
31 Correct 9 ms 23724 KB Output is correct

Subtask #5
46.0 / 46.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 23204 KB Output is correct
2 Correct 6 ms 23132 KB Output is correct
3 Correct 5 ms 23132 KB Output is correct
4 Correct 877 ms 85640 KB Output is correct
5 Correct 435 ms 66452 KB Output is correct
6 Correct 198 ms 61948 KB Output is correct
7 Correct 361 ms 77112 KB Output is correct
8 Correct 212 ms 75500 KB Output is correct
9 Correct 5 ms 23132 KB Output is correct
10 Correct 6 ms 23208 KB Output is correct
11 Correct 5 ms 23160 KB Output is correct
12 Correct 5 ms 23204 KB Output is correct
13 Correct 5 ms 23132 KB Output is correct
14 Correct 5 ms 23132 KB Output is correct
15 Correct 5 ms 23208 KB Output is correct
16 Correct 5 ms 23132 KB Output is correct
17 Correct 5 ms 23132 KB Output is correct
18 Correct 5 ms 23132 KB Output is correct
19 Correct 5 ms 23132 KB Output is correct
20 Correct 5 ms 23132 KB Output is correct
21 Correct 5 ms 23132 KB Output is correct
22 Correct 5 ms 23132 KB Output is correct
23 Correct 6 ms 23196 KB Output is correct
24 Correct 15 ms 23896 KB Output is correct
25 Correct 9 ms 23896 KB Output is correct
26 Correct 11 ms 23896 KB Output is correct
27 Correct 12 ms 23900 KB Output is correct
28 Correct 14 ms 23644 KB Output is correct
29 Correct 17 ms 23716 KB Output is correct
30 Correct 19 ms 23900 KB Output is correct
31 Correct 12 ms 23896 KB Output is correct
32 Correct 10 ms 23900 KB Output is correct
33 Correct 6 ms 23132 KB Output is correct
34 Correct 5 ms 22940 KB Output is correct
35 Correct 10 ms 23896 KB Output is correct
36 Correct 9 ms 23776 KB Output is correct
37 Correct 7 ms 23632 KB Output is correct
38 Correct 10 ms 23640 KB Output is correct
39 Correct 9 ms 23724 KB Output is correct
40 Correct 1031 ms 86232 KB Output is correct
41 Correct 491 ms 66236 KB Output is correct
42 Correct 570 ms 93612 KB Output is correct
43 Correct 574 ms 92424 KB Output is correct
44 Correct 272 ms 63204 KB Output is correct
45 Correct 367 ms 69004 KB Output is correct
46 Correct 217 ms 44240 KB Output is correct
47 Correct 664 ms 75124 KB Output is correct
48 Correct 468 ms 78372 KB Output is correct