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답안 #701870

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
701870 2023-02-22T08:23:46 Z dattranxxx Jakarta Skyscrapers (APIO15_skyscraper) C++11
100 / 100
 333 ms 25600 KB 
#include<bits/stdc++.h>
using namespace std;
using ll = long long;

const int N = 5e4 + 5, S = 100;
vector<int> adj[N];
int n, m;
vector<int> dog[N];

int dis[N][S + 5], b[N], p[N];

struct State {
  int u, l, d;
  State(int u, int l, int d): u(u), l(l), d(d) {}
  bool operator < (const State& s) const {
    return d > s.d;
  }
};

int main() {
  cin.tie(0)->sync_with_stdio(0); cout.tie(0);
  cin >> n >> m;

  for (int i = 0, x; i < m; ++i) 
    cin >> b[i] >> p[i], dog[b[i]].emplace_back(p[i]);
    
  priority_queue<State> q;
  memset(dis, 0x3f, sizeof(dis));
  
  if (p[0] <= S) q.emplace(b[0], p[0], 0), dis[b[0]][p[0]] = 0;
  else {
    for (int i = 0; b[0] + i * p[0] < n; ++i) 
      q.emplace(b[0] + i * p[0], S + 1, i), dis[b[0] + i * p[0]][S + 1] = i;
    for (int i = 1; b[0] - i * p[0] >= 0; ++i)
      q.emplace(b[0] - i * p[0], S + 1, i), dis[b[0] - i * p[0]][S + 1] = i;
   }
  
  while (!q.empty()) {
    auto s = q.top(); q.pop();
    if (s.d != dis[s.u][s.l]) continue;
    if (s.u == b[1]) return cout << s.d, 0;
    if (s.l == S + 1) {
      for (int d : dog[s.u]) {
        if (d <= S) {
          if (s.d < dis[s.u][d]) dis[s.u][d] = s.d, q.emplace(s.u, d, s.d);
        } else {
          for (int i = 1; s.u + i * d < n; ++i) if (s.d + i < dis[s.u + i * d][s.l])
            q.emplace(s.u + i * d, s.l, s.d + i), dis[s.u + i*d][s.l] = s.d + i;
          for (int i = 1; s.u - i * d >= 0; ++i) if (s.d + i < dis[s.u - i * d][s.l]) 
            q.emplace(s.u - i * d, s.l, s.d + i), dis[s.u - i*d][s.l] = s.d + i;
        }
      }
    } else {
      if (s.d < dis[s.u][S + 1]) 
        dis[s.u][S+1] = s.d, q.emplace(s.u, S+1, s.d);  
      if (s.u + s.l < n && s.d + 1 < dis[s.u + s.l][s.l])
        dis[s.u + s.l][s.l] = s.d + 1,
        q.emplace(s.u + s.l, s.l, s.d + 1);
      if (s.u - s.l >= 0 && s.d + 1 < dis[s.u - s.l][s.l])
        dis[s.u - s.l][s.l] = s.d + 1,
        q.emplace(s.u - s.l, s.l, s.d + 1);
    }
  }
  cout << -1;
	return 0;
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:24:19: warning: unused variable 'x' [-Wunused-variable]
   24 |   for (int i = 0, x; i < m; ++i)
      |                   ^

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 23124 KB Output is correct
2 Correct 10 ms 23224 KB Output is correct
3 Correct 12 ms 23124 KB Output is correct
4 Correct 12 ms 23156 KB Output is correct
5 Correct 9 ms 23124 KB Output is correct
6 Correct 9 ms 23144 KB Output is correct
7 Correct 10 ms 23228 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 23124 KB Output is correct
2 Correct 10 ms 23160 KB Output is correct
3 Correct 9 ms 23192 KB Output is correct
4 Correct 13 ms 23156 KB Output is correct
5 Correct 10 ms 23128 KB Output is correct
6 Correct 10 ms 23124 KB Output is correct
7 Correct 10 ms 23124 KB Output is correct
8 Correct 11 ms 23228 KB Output is correct
9 Correct 10 ms 23124 KB Output is correct
10 Correct 9 ms 23124 KB Output is correct
11 Correct 11 ms 23252 KB Output is correct
12 Correct 9 ms 23224 KB Output is correct
13 Correct 11 ms 23252 KB Output is correct
14 Correct 10 ms 23296 KB Output is correct
15 Correct 10 ms 23244 KB Output is correct

Subtask #3
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 23156 KB Output is correct
2 Correct 9 ms 23124 KB Output is correct
3 Correct 10 ms 23124 KB Output is correct
4 Correct 10 ms 23220 KB Output is correct
5 Correct 11 ms 23224 KB Output is correct
6 Correct 10 ms 23112 KB Output is correct
7 Correct 10 ms 23124 KB Output is correct
8 Correct 10 ms 23148 KB Output is correct
9 Correct 9 ms 23124 KB Output is correct
10 Correct 11 ms 23128 KB Output is correct
11 Correct 10 ms 23252 KB Output is correct
12 Correct 12 ms 23160 KB Output is correct
13 Correct 10 ms 23168 KB Output is correct
14 Correct 11 ms 23252 KB Output is correct
15 Correct 11 ms 23248 KB Output is correct
16 Correct 11 ms 23248 KB Output is correct
17 Correct 10 ms 23296 KB Output is correct
18 Correct 10 ms 23272 KB Output is correct
19 Correct 10 ms 23160 KB Output is correct
20 Correct 10 ms 23252 KB Output is correct
21 Correct 10 ms 23164 KB Output is correct
22 Correct 10 ms 23240 KB Output is correct
23 Correct 10 ms 23252 KB Output is correct
24 Correct 11 ms 23216 KB Output is correct
25 Correct 10 ms 23252 KB Output is correct
26 Correct 10 ms 23172 KB Output is correct
27 Correct 10 ms 23252 KB Output is correct
28 Correct 12 ms 23252 KB Output is correct
29 Correct 14 ms 23252 KB Output is correct
30 Correct 11 ms 23156 KB Output is correct
31 Correct 12 ms 23260 KB Output is correct
32 Correct 11 ms 23252 KB Output is correct
33 Correct 19 ms 23236 KB Output is correct
34 Correct 16 ms 23288 KB Output is correct

Subtask #4
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 23152 KB Output is correct
2 Correct 10 ms 23192 KB Output is correct
3 Correct 9 ms 23160 KB Output is correct
4 Correct 10 ms 23156 KB Output is correct
5 Correct 11 ms 23120 KB Output is correct
6 Correct 10 ms 23116 KB Output is correct
7 Correct 10 ms 23220 KB Output is correct
8 Correct 10 ms 23124 KB Output is correct
9 Correct 9 ms 23124 KB Output is correct
10 Correct 11 ms 23124 KB Output is correct
11 Correct 10 ms 23252 KB Output is correct
12 Correct 10 ms 23252 KB Output is correct
13 Correct 10 ms 23160 KB Output is correct
14 Correct 11 ms 23288 KB Output is correct
15 Correct 10 ms 23296 KB Output is correct
16 Correct 10 ms 23160 KB Output is correct
17 Correct 10 ms 23156 KB Output is correct
18 Correct 9 ms 23244 KB Output is correct
19 Correct 10 ms 23252 KB Output is correct
20 Correct 11 ms 23244 KB Output is correct
21 Correct 9 ms 23244 KB Output is correct
22 Correct 10 ms 23156 KB Output is correct
23 Correct 11 ms 23280 KB Output is correct
24 Correct 10 ms 23252 KB Output is correct
25 Correct 9 ms 23296 KB Output is correct
26 Correct 10 ms 23252 KB Output is correct
27 Correct 10 ms 23196 KB Output is correct
28 Correct 10 ms 23300 KB Output is correct
29 Correct 14 ms 23156 KB Output is correct
30 Correct 11 ms 23148 KB Output is correct
31 Correct 13 ms 23260 KB Output is correct
32 Correct 12 ms 23124 KB Output is correct
33 Correct 20 ms 23296 KB Output is correct
34 Correct 14 ms 23316 KB Output is correct
35 Correct 15 ms 23844 KB Output is correct
36 Correct 10 ms 23292 KB Output is correct
37 Correct 13 ms 23796 KB Output is correct
38 Correct 16 ms 23992 KB Output is correct
39 Correct 15 ms 23892 KB Output is correct
40 Correct 15 ms 23932 KB Output is correct
41 Correct 18 ms 23904 KB Output is correct
42 Correct 17 ms 23848 KB Output is correct
43 Correct 14 ms 23872 KB Output is correct
44 Correct 15 ms 23840 KB Output is correct
45 Correct 35 ms 24056 KB Output is correct
46 Correct 18 ms 24052 KB Output is correct

Subtask #5
43.0 / 43.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 23124 KB Output is correct
2 Correct 11 ms 23124 KB Output is correct
3 Correct 9 ms 23124 KB Output is correct
4 Correct 10 ms 23124 KB Output is correct
5 Correct 10 ms 23152 KB Output is correct
6 Correct 10 ms 23124 KB Output is correct
7 Correct 10 ms 23124 KB Output is correct
8 Correct 10 ms 23124 KB Output is correct
9 Correct 9 ms 23224 KB Output is correct
10 Correct 9 ms 23248 KB Output is correct
11 Correct 10 ms 23252 KB Output is correct
12 Correct 10 ms 23188 KB Output is correct
13 Correct 10 ms 23252 KB Output is correct
14 Correct 10 ms 23252 KB Output is correct
15 Correct 11 ms 23252 KB Output is correct
16 Correct 10 ms 23252 KB Output is correct
17 Correct 10 ms 23296 KB Output is correct
18 Correct 10 ms 23204 KB Output is correct
19 Correct 9 ms 23160 KB Output is correct
20 Correct 10 ms 23260 KB Output is correct
21 Correct 10 ms 23160 KB Output is correct
22 Correct 9 ms 23256 KB Output is correct
23 Correct 10 ms 23252 KB Output is correct
24 Correct 10 ms 23268 KB Output is correct
25 Correct 9 ms 23252 KB Output is correct
26 Correct 10 ms 23228 KB Output is correct
27 Correct 10 ms 23168 KB Output is correct
28 Correct 10 ms 23212 KB Output is correct
29 Correct 14 ms 23160 KB Output is correct
30 Correct 11 ms 23124 KB Output is correct
31 Correct 12 ms 23252 KB Output is correct
32 Correct 13 ms 23160 KB Output is correct
33 Correct 19 ms 23248 KB Output is correct
34 Correct 15 ms 23324 KB Output is correct
35 Correct 15 ms 23872 KB Output is correct
36 Correct 10 ms 23252 KB Output is correct
37 Correct 14 ms 23764 KB Output is correct
38 Correct 15 ms 24020 KB Output is correct
39 Correct 14 ms 23892 KB Output is correct
40 Correct 17 ms 24020 KB Output is correct
41 Correct 14 ms 23932 KB Output is correct
42 Correct 13 ms 23892 KB Output is correct
43 Correct 14 ms 23808 KB Output is correct
44 Correct 13 ms 23876 KB Output is correct
45 Correct 30 ms 24064 KB Output is correct
46 Correct 18 ms 24148 KB Output is correct
47 Correct 16 ms 24468 KB Output is correct
48 Correct 14 ms 24020 KB Output is correct
49 Correct 14 ms 23976 KB Output is correct
50 Correct 18 ms 23804 KB Output is correct
51 Correct 23 ms 24884 KB Output is correct
52 Correct 24 ms 24860 KB Output is correct
53 Correct 17 ms 24336 KB Output is correct
54 Correct 11 ms 23124 KB Output is correct
55 Correct 11 ms 23152 KB Output is correct
56 Correct 17 ms 24584 KB Output is correct
57 Correct 10 ms 23304 KB Output is correct
58 Correct 17 ms 23764 KB Output is correct
59 Correct 16 ms 23892 KB Output is correct
60 Correct 15 ms 23892 KB Output is correct
61 Correct 15 ms 23892 KB Output is correct
62 Correct 34 ms 24708 KB Output is correct
63 Correct 42 ms 25600 KB Output is correct
64 Correct 41 ms 25528 KB Output is correct
65 Correct 51 ms 25552 KB Output is correct
66 Correct 333 ms 25548 KB Output is correct
67 Correct 120 ms 25552 KB Output is correct