답안 #375362

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
375362 2021-03-09T10:10:38 Z wind_reaper Jakarta Skyscrapers (APIO15_skyscraper) C++17
100 / 100
295 ms 68056 KB
#include <bits/stdc++.h>

using namespace std;

const int INF = 1e9;

int32_t main(){
	ios_base::sync_with_stdio(false); 
	cin.tie(NULL); 
	
	int n, m;
	cin >> n >> m;

	vector<vector<array<int, 2>>> adj(n);
	// vector<set<array<int, 2>>> adj(n);
	vector<set<int>> jump(n);
	vector<array<int, 2>> info(m);
	int src, dest;
	for(int i = 0; i < m; i++){
		int b, p;
		cin >> b >> p;
		info[i] = {b, p};
		jump[b].insert(p);
		if(i == 0) src = b;
		if(i == 1) dest = b;
	}
/*
	for(int i = 0; i < m; i++){
		auto [b, p] = info[i];
		for(int j = b+p; j < n; j += p){
			adj[b].push_back({j, (j-b)/p});
			if(jump[j].count(p)) break;
		}
		for(int j = b-p; j >= 0; j -= p){
			adj[b].push_back({j, (b-j)/p});
			if(jump[j].count(p)) break;
		}
	}*/
 	
 	for(int b = 0; b < n; b++){
 		for(int p : jump[b]){
 			for(int j = b+p; j < n; j += p){
				adj[b].push_back({j, (j-b)/p});
				if(jump[j].count(p)) break;
			}
			for(int j = b-p; j >= 0; j -= p){
				adj[b].push_back({j, (b-j)/p});
				if(jump[j].count(p)) break;
			}
 		}
 	}
	vector<int> dist(n, INF);
	dist[src] = 0;
	priority_queue<array<int, 2>, vector<array<int, 2>>, greater<array<int, 2>>> pq;
	pq.push({0, src});
 
	while(!pq.empty()){
		auto [d, node] = pq.top();
		pq.pop();
		for(auto& [v, nd] : adj[node]){
			if(dist[v] <= dist[node] + nd)
				continue;
			dist[v] = dist[node] + nd;
			pq.push({dist[v], v});
		}
	}
	cout << (dist[dest] == INF ? -1 : dist[dest]) << '\n';

	return 0; 
}

Compilation message

skyscraper.cpp: In function 'int32_t main()':
skyscraper.cpp:67:20: warning: 'dest' may be used uninitialized in this function [-Wmaybe-uninitialized]
   67 |  cout << (dist[dest] == INF ? -1 : dist[dest]) << '\n';
      |                    ^
skyscraper.cpp:53:10: warning: 'src' may be used uninitialized in this function [-Wmaybe-uninitialized]
   53 |  dist[src] = 0;
      |          ^
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 492 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 2 ms 492 KB Output is correct
15 Correct 1 ms 492 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 268 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 492 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 492 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 492 KB Output is correct
15 Correct 1 ms 492 KB Output is correct
16 Correct 1 ms 492 KB Output is correct
17 Correct 2 ms 620 KB Output is correct
18 Correct 1 ms 620 KB Output is correct
19 Correct 1 ms 620 KB Output is correct
20 Correct 2 ms 620 KB Output is correct
21 Correct 41 ms 492 KB Output is correct
22 Correct 1 ms 620 KB Output is correct
23 Correct 2 ms 620 KB Output is correct
24 Correct 85 ms 876 KB Output is correct
25 Correct 2 ms 768 KB Output is correct
26 Correct 87 ms 620 KB Output is correct
27 Correct 2 ms 620 KB Output is correct
28 Correct 2 ms 876 KB Output is correct
29 Correct 4 ms 1388 KB Output is correct
30 Correct 2 ms 748 KB Output is correct
31 Correct 2 ms 1004 KB Output is correct
32 Correct 2 ms 876 KB Output is correct
33 Correct 7 ms 2028 KB Output is correct
34 Correct 7 ms 2028 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 492 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 492 KB Output is correct
15 Correct 2 ms 492 KB Output is correct
16 Correct 1 ms 492 KB Output is correct
17 Correct 2 ms 748 KB Output is correct
18 Correct 1 ms 620 KB Output is correct
19 Correct 1 ms 620 KB Output is correct
20 Correct 2 ms 620 KB Output is correct
21 Correct 1 ms 492 KB Output is correct
22 Correct 1 ms 620 KB Output is correct
23 Correct 90 ms 620 KB Output is correct
24 Correct 2 ms 748 KB Output is correct
25 Correct 2 ms 748 KB Output is correct
26 Correct 1 ms 620 KB Output is correct
27 Correct 1 ms 620 KB Output is correct
28 Correct 2 ms 876 KB Output is correct
29 Correct 4 ms 1388 KB Output is correct
30 Correct 2 ms 748 KB Output is correct
31 Correct 3 ms 1004 KB Output is correct
32 Correct 2 ms 876 KB Output is correct
33 Correct 7 ms 2028 KB Output is correct
34 Correct 7 ms 2028 KB Output is correct
35 Correct 18 ms 3052 KB Output is correct
36 Correct 3 ms 876 KB Output is correct
37 Correct 21 ms 3692 KB Output is correct
38 Correct 24 ms 4204 KB Output is correct
39 Correct 24 ms 4204 KB Output is correct
40 Correct 24 ms 4204 KB Output is correct
41 Correct 24 ms 4224 KB Output is correct
42 Correct 6 ms 1004 KB Output is correct
43 Correct 6 ms 1004 KB Output is correct
44 Correct 6 ms 1132 KB Output is correct
45 Correct 30 ms 6892 KB Output is correct
46 Correct 30 ms 6892 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 492 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 2 ms 492 KB Output is correct
15 Correct 1 ms 492 KB Output is correct
16 Correct 1 ms 492 KB Output is correct
17 Correct 2 ms 748 KB Output is correct
18 Correct 1 ms 620 KB Output is correct
19 Correct 1 ms 620 KB Output is correct
20 Correct 2 ms 620 KB Output is correct
21 Correct 1 ms 492 KB Output is correct
22 Correct 1 ms 620 KB Output is correct
23 Correct 2 ms 620 KB Output is correct
24 Correct 2 ms 748 KB Output is correct
25 Correct 2 ms 748 KB Output is correct
26 Correct 1 ms 620 KB Output is correct
27 Correct 1 ms 620 KB Output is correct
28 Correct 2 ms 876 KB Output is correct
29 Correct 4 ms 1388 KB Output is correct
30 Correct 2 ms 748 KB Output is correct
31 Correct 2 ms 1004 KB Output is correct
32 Correct 2 ms 876 KB Output is correct
33 Correct 7 ms 2028 KB Output is correct
34 Correct 8 ms 2028 KB Output is correct
35 Correct 19 ms 3052 KB Output is correct
36 Correct 4 ms 876 KB Output is correct
37 Correct 21 ms 3692 KB Output is correct
38 Correct 25 ms 4076 KB Output is correct
39 Correct 28 ms 4076 KB Output is correct
40 Correct 34 ms 4076 KB Output is correct
41 Correct 25 ms 4076 KB Output is correct
42 Correct 6 ms 1004 KB Output is correct
43 Correct 6 ms 1004 KB Output is correct
44 Correct 6 ms 1132 KB Output is correct
45 Correct 31 ms 6892 KB Output is correct
46 Correct 35 ms 6872 KB Output is correct
47 Correct 62 ms 12008 KB Output is correct
48 Correct 20 ms 5864 KB Output is correct
49 Correct 17 ms 5100 KB Output is correct
50 Correct 14 ms 4844 KB Output is correct
51 Correct 50 ms 8568 KB Output is correct
52 Correct 55 ms 8976 KB Output is correct
53 Correct 25 ms 6000 KB Output is correct
54 Correct 4 ms 3052 KB Output is correct
55 Correct 6 ms 3432 KB Output is correct
56 Correct 17 ms 5356 KB Output is correct
57 Correct 47 ms 11624 KB Output is correct
58 Correct 11 ms 3940 KB Output is correct
59 Correct 12 ms 4328 KB Output is correct
60 Correct 14 ms 4968 KB Output is correct
61 Correct 14 ms 4460 KB Output is correct
62 Correct 32 ms 9704 KB Output is correct
63 Correct 101 ms 26980 KB Output is correct
64 Correct 100 ms 30048 KB Output is correct
65 Correct 132 ms 39776 KB Output is correct
66 Correct 285 ms 68056 KB Output is correct
67 Correct 295 ms 68056 KB Output is correct