답안 #260799

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
260799	2020-08-11T02:07:49 Z	my99n	Jakarta Skyscrapers (APIO15_skyscraper)	C++14	100 / 100	943 ms	5744 KB

skyscraper

#include<bits/stdc++.h>
using namespace std;

struct A {
  long long n, w;
  bool operator < (const A & o) const {
    return w > o.w;
  } 
};

vector<int> P[30100];
int visited[30100];
long long dis[30100];
priority_queue<A> heap;

int main(){
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  int n, m, s, e;
  cin >> n >> m;
  for (int i = 0; i < m; i++) {
    int b, p;
    cin >> b >> p;
    P[b].push_back(p);
    if (i == 0) s = b;
    if (i == 1) e = b;
  }

  for (int i = 0; i <= n; i++) dis[i] = 1e18;

  heap.push({s, 0});

  while (!heap.empty()) {
    auto t = heap.top(); heap.pop();
    if (visited[t.n]) continue;
    visited[t.n] = 1;
    dis[t.n] = t.w;

    if (t.n == e) {
      cout << t.w << endl;
      return 0;
    }

    for (auto p : P[t.n]) {
      for (int j = 1; t.n - j*p >= 0; j++) {
        if (t.w+j < dis[t.n-j*p]) {
          dis[t.n-j*p] = t.w+j;
          heap.push({t.n - j*p, t.w+j});
          // cerr << "push " << t.n - j*p << ' ' << t.w+j;
        }
      }
      for (int j = 1; t.n + j*p < n; j++) {
        if (t.w+j < dis[t.n+j*p]) {
          dis[t.n+j*p] = t.w+j;
          heap.push({t.n + j*p, t.w+j});
          // cerr << "push " << t.n + j*p << ' ' << t.w+j;
        }
      }
    }
  }
  cout << -1 << endl;
  return 0;
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:39:13: warning: 'e' may be used uninitialized in this function [-Wmaybe-uninitialized]
     if (t.n == e) {
         ~~~~^~~~
skyscraper.cpp:31:12: warning: 's' may be used uninitialized in this function [-Wmaybe-uninitialized]
   heap.push({s, 0});
   ~~~~~~~~~^~~~~~~~

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1024 KB	Output is correct
2	Correct	1 ms	1024 KB	Output is correct
3	Correct	1 ms	1024 KB	Output is correct
4	Correct	1 ms	1024 KB	Output is correct
5	Correct	1 ms	1024 KB	Output is correct
6	Correct	1 ms	1024 KB	Output is correct
7	Correct	1 ms	1024 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1024 KB	Output is correct
2	Correct	1 ms	1024 KB	Output is correct
3	Correct	1 ms	1024 KB	Output is correct
4	Correct	1 ms	1024 KB	Output is correct
5	Correct	1 ms	1024 KB	Output is correct
6	Correct	2 ms	1024 KB	Output is correct
7	Correct	1 ms	1024 KB	Output is correct
8	Correct	1 ms	1024 KB	Output is correct
9	Correct	1 ms	1024 KB	Output is correct
10	Correct	1 ms	1024 KB	Output is correct
11	Correct	1 ms	1024 KB	Output is correct
12	Correct	1 ms	1024 KB	Output is correct
13	Correct	1 ms	1024 KB	Output is correct
14	Correct	1 ms	1024 KB	Output is correct
15	Correct	1 ms	1024 KB	Output is correct

Subtask #3
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1024 KB	Output is correct
2	Correct	1 ms	1024 KB	Output is correct
3	Correct	1 ms	1024 KB	Output is correct
4	Correct	1 ms	1024 KB	Output is correct
5	Correct	1 ms	1024 KB	Output is correct
6	Correct	1 ms	1024 KB	Output is correct
7	Correct	1 ms	1024 KB	Output is correct
8	Correct	1 ms	1024 KB	Output is correct
9	Correct	1 ms	1024 KB	Output is correct
10	Correct	1 ms	1024 KB	Output is correct
11	Correct	1 ms	1024 KB	Output is correct
12	Correct	1 ms	1024 KB	Output is correct
13	Correct	1 ms	1024 KB	Output is correct
14	Correct	1 ms	1024 KB	Output is correct
15	Correct	2 ms	1024 KB	Output is correct
16	Correct	1 ms	1024 KB	Output is correct
17	Correct	2 ms	1152 KB	Output is correct
18	Correct	1 ms	1024 KB	Output is correct
19	Correct	1 ms	1024 KB	Output is correct
20	Correct	5 ms	1152 KB	Output is correct
21	Correct	1 ms	1024 KB	Output is correct
22	Correct	1 ms	1024 KB	Output is correct
23	Correct	2 ms	1152 KB	Output is correct
24	Correct	2 ms	1152 KB	Output is correct
25	Correct	2 ms	1152 KB	Output is correct
26	Correct	1 ms	1152 KB	Output is correct
27	Correct	2 ms	1152 KB	Output is correct
28	Correct	2 ms	1152 KB	Output is correct
29	Correct	2 ms	1408 KB	Output is correct
30	Correct	2 ms	1280 KB	Output is correct
31	Correct	2 ms	1280 KB	Output is correct
32	Correct	2 ms	1280 KB	Output is correct
33	Correct	3 ms	1408 KB	Output is correct
34	Correct	2 ms	1408 KB	Output is correct

Subtask #4
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1024 KB	Output is correct
2	Correct	1 ms	1024 KB	Output is correct
3	Correct	1 ms	1024 KB	Output is correct
4	Correct	1 ms	1024 KB	Output is correct
5	Correct	1 ms	1024 KB	Output is correct
6	Correct	1 ms	1024 KB	Output is correct
7	Correct	1 ms	1024 KB	Output is correct
8	Correct	1 ms	1024 KB	Output is correct
9	Correct	2 ms	1024 KB	Output is correct
10	Correct	1 ms	1024 KB	Output is correct
11	Correct	1 ms	1024 KB	Output is correct
12	Correct	1 ms	1024 KB	Output is correct
13	Correct	2 ms	1024 KB	Output is correct
14	Correct	2 ms	1024 KB	Output is correct
15	Correct	1 ms	1024 KB	Output is correct
16	Correct	1 ms	1024 KB	Output is correct
17	Correct	2 ms	1152 KB	Output is correct
18	Correct	1 ms	1024 KB	Output is correct
19	Correct	1 ms	1024 KB	Output is correct
20	Correct	5 ms	1152 KB	Output is correct
21	Correct	1 ms	1024 KB	Output is correct
22	Correct	1 ms	1024 KB	Output is correct
23	Correct	2 ms	1152 KB	Output is correct
24	Correct	2 ms	1152 KB	Output is correct
25	Correct	2 ms	1152 KB	Output is correct
26	Correct	2 ms	1152 KB	Output is correct
27	Correct	1 ms	1152 KB	Output is correct
28	Correct	2 ms	1152 KB	Output is correct
29	Correct	3 ms	1408 KB	Output is correct
30	Correct	2 ms	1280 KB	Output is correct
31	Correct	2 ms	1280 KB	Output is correct
32	Correct	2 ms	1280 KB	Output is correct
33	Correct	3 ms	1408 KB	Output is correct
34	Correct	3 ms	1408 KB	Output is correct
35	Correct	8 ms	1408 KB	Output is correct
36	Correct	2 ms	1152 KB	Output is correct
37	Correct	6 ms	1536 KB	Output is correct
38	Correct	9 ms	1536 KB	Output is correct
39	Correct	8 ms	1408 KB	Output is correct
40	Correct	9 ms	1536 KB	Output is correct
41	Correct	11 ms	1536 KB	Output is correct
42	Correct	6 ms	1280 KB	Output is correct
43	Correct	6 ms	1280 KB	Output is correct
44	Correct	50 ms	1280 KB	Output is correct
45	Correct	9 ms	1664 KB	Output is correct
46	Correct	8 ms	1664 KB	Output is correct

Subtask #5
43.0 / 43.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1024 KB	Output is correct
2	Correct	1 ms	1024 KB	Output is correct
3	Correct	1 ms	1024 KB	Output is correct
4	Correct	1 ms	1024 KB	Output is correct
5	Correct	1 ms	1024 KB	Output is correct
6	Correct	1 ms	1024 KB	Output is correct
7	Correct	1 ms	1024 KB	Output is correct
8	Correct	1 ms	1024 KB	Output is correct
9	Correct	1 ms	1024 KB	Output is correct
10	Correct	1 ms	1024 KB	Output is correct
11	Correct	1 ms	1024 KB	Output is correct
12	Correct	1 ms	1024 KB	Output is correct
13	Correct	1 ms	1024 KB	Output is correct
14	Correct	1 ms	1024 KB	Output is correct
15	Correct	2 ms	1152 KB	Output is correct
16	Correct	1 ms	1024 KB	Output is correct
17	Correct	2 ms	1152 KB	Output is correct
18	Correct	1 ms	1024 KB	Output is correct
19	Correct	1 ms	1024 KB	Output is correct
20	Correct	7 ms	1312 KB	Output is correct
21	Correct	1 ms	1024 KB	Output is correct
22	Correct	2 ms	1024 KB	Output is correct
23	Correct	1 ms	1152 KB	Output is correct
24	Correct	2 ms	1152 KB	Output is correct
25	Correct	2 ms	1152 KB	Output is correct
26	Correct	1 ms	1152 KB	Output is correct
27	Correct	1 ms	1152 KB	Output is correct
28	Correct	2 ms	1152 KB	Output is correct
29	Correct	2 ms	1408 KB	Output is correct
30	Correct	2 ms	1280 KB	Output is correct
31	Correct	2 ms	1280 KB	Output is correct
32	Correct	2 ms	1280 KB	Output is correct
33	Correct	3 ms	1408 KB	Output is correct
34	Correct	3 ms	1536 KB	Output is correct
35	Correct	8 ms	1408 KB	Output is correct
36	Correct	2 ms	1152 KB	Output is correct
37	Correct	6 ms	1536 KB	Output is correct
38	Correct	9 ms	1568 KB	Output is correct
39	Correct	8 ms	1408 KB	Output is correct
40	Correct	9 ms	1536 KB	Output is correct
41	Correct	10 ms	1536 KB	Output is correct
42	Correct	7 ms	1280 KB	Output is correct
43	Correct	6 ms	1280 KB	Output is correct
44	Correct	41 ms	1280 KB	Output is correct
45	Correct	9 ms	1664 KB	Output is correct
46	Correct	8 ms	1664 KB	Output is correct
47	Correct	11 ms	2680 KB	Output is correct
48	Correct	8 ms	1664 KB	Output is correct
49	Correct	8 ms	1664 KB	Output is correct
50	Correct	6 ms	1664 KB	Output is correct
51	Correct	18 ms	4212 KB	Output is correct
52	Correct	19 ms	3192 KB	Output is correct
53	Correct	12 ms	2304 KB	Output is correct
54	Correct	3 ms	1792 KB	Output is correct
55	Correct	3 ms	1792 KB	Output is correct
56	Correct	726 ms	3188 KB	Output is correct
57	Correct	5 ms	3568 KB	Output is correct
58	Correct	943 ms	1916 KB	Output is correct
59	Correct	10 ms	1916 KB	Output is correct
60	Correct	9 ms	1948 KB	Output is correct
61	Correct	10 ms	1916 KB	Output is correct
62	Correct	13 ms	2304 KB	Output is correct
63	Correct	30 ms	3700 KB	Output is correct
64	Correct	30 ms	3700 KB	Output is correct
65	Correct	38 ms	5744 KB	Output is correct
66	Correct	54 ms	5744 KB	Output is correct
67	Correct	42 ms	5744 KB	Output is correct

답안 #260799

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 12.0 / 12.0

Subtask #3 14.0 / 14.0

Subtask #4 21.0 / 21.0

Subtask #5 43.0 / 43.0

Subtask #1
10.0 / 10.0

Subtask #2
12.0 / 12.0

Subtask #3
14.0 / 14.0

Subtask #4
21.0 / 21.0

Subtask #5
43.0 / 43.0