답안 #108296

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
108296 2019-04-28T13:14:29 Z maruii Jakarta Skyscrapers (APIO15_skyscraper) C++14
100 / 100
686 ms 3620 KB
#include <bits/stdc++.h>
using namespace std;
using pii = pair<int, int>;
#define ff first
#define ss second

priority_queue<pii, vector<pii>, greater<pii> > pq;
int dst[30000];
vector<int> edge[30000];
int main(){
	ios_base::sync_with_stdio(0), cin.tie(0);
	int N, M, st, ed; cin>>N>>M;
	for(int i=0; i<M; ++i){
		int b,p; cin>>b>>p;
		edge[b].push_back(p);
		if(!i) st = b;
		else if(i==1) ed = b;
	}

	fill(dst, dst+N, 1e9);
	pq.emplace(0, st); dst[st] = 0;
	while(pq.size()){
		auto x = pq.top(); pq.pop();
		if(x.ff != dst[x.ss]) continue;
		for(auto p: edge[x.ss]){
			for(int j=0; x.ss+p*j<N; ++j){
				if(dst[x.ss+p*j] > x.ff + j){
					dst[x.ss+p*j] = x.ff + j;
					pq.emplace(x.ff + j, x.ss+p*j);
				}
			}
			for(int j=1; x.ss-p*j>=0; ++j){
				if(dst[x.ss-p*j] > x.ff + j){
					dst[x.ss-p*j] = x.ff + j;
					pq.emplace(x.ff + j, x.ss-p*j);
				}
			}
		}
	}

	cout<<(dst[ed]==1e9?-1:dst[ed]);
	return 0;
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:21:29: warning: 'st' may be used uninitialized in this function [-Wmaybe-uninitialized]
  pq.emplace(0, st); dst[st] = 0;
                     ~~~~~~~~^~~
skyscraper.cpp:41:15: warning: 'ed' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout<<(dst[ed]==1e9?-1:dst[ed]);
         ~~~~~~^
# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 1024 KB Output is correct
2 Correct 2 ms 1024 KB Output is correct
3 Correct 3 ms 1024 KB Output is correct
4 Correct 3 ms 1024 KB Output is correct
5 Correct 3 ms 1024 KB Output is correct
6 Correct 3 ms 1024 KB Output is correct
7 Correct 3 ms 1024 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 1024 KB Output is correct
2 Correct 3 ms 1024 KB Output is correct
3 Correct 3 ms 1024 KB Output is correct
4 Correct 3 ms 1024 KB Output is correct
5 Correct 3 ms 1024 KB Output is correct
6 Correct 2 ms 1024 KB Output is correct
7 Correct 3 ms 1024 KB Output is correct
8 Correct 3 ms 1024 KB Output is correct
9 Correct 3 ms 1024 KB Output is correct
10 Correct 3 ms 1024 KB Output is correct
11 Correct 3 ms 1152 KB Output is correct
12 Correct 4 ms 1024 KB Output is correct
13 Correct 4 ms 1024 KB Output is correct
14 Correct 4 ms 1024 KB Output is correct
15 Correct 4 ms 1152 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 1024 KB Output is correct
2 Correct 2 ms 1024 KB Output is correct
3 Correct 3 ms 1024 KB Output is correct
4 Correct 3 ms 1024 KB Output is correct
5 Correct 3 ms 1024 KB Output is correct
6 Correct 3 ms 1024 KB Output is correct
7 Correct 3 ms 1024 KB Output is correct
8 Correct 3 ms 1024 KB Output is correct
9 Correct 3 ms 1024 KB Output is correct
10 Correct 3 ms 1024 KB Output is correct
11 Correct 3 ms 1152 KB Output is correct
12 Correct 4 ms 1024 KB Output is correct
13 Correct 4 ms 1152 KB Output is correct
14 Correct 4 ms 1024 KB Output is correct
15 Correct 4 ms 1024 KB Output is correct
16 Correct 3 ms 1024 KB Output is correct
17 Correct 4 ms 1152 KB Output is correct
18 Correct 3 ms 1152 KB Output is correct
19 Correct 3 ms 1024 KB Output is correct
20 Correct 6 ms 1152 KB Output is correct
21 Correct 3 ms 1024 KB Output is correct
22 Correct 3 ms 1024 KB Output is correct
23 Correct 4 ms 1152 KB Output is correct
24 Correct 4 ms 1152 KB Output is correct
25 Correct 4 ms 1152 KB Output is correct
26 Correct 5 ms 1152 KB Output is correct
27 Correct 6 ms 1152 KB Output is correct
28 Correct 3 ms 1152 KB Output is correct
29 Correct 5 ms 1280 KB Output is correct
30 Correct 3 ms 1152 KB Output is correct
31 Correct 4 ms 1152 KB Output is correct
32 Correct 5 ms 1152 KB Output is correct
33 Correct 5 ms 1280 KB Output is correct
34 Correct 6 ms 1408 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 1024 KB Output is correct
2 Correct 3 ms 1024 KB Output is correct
3 Correct 3 ms 1024 KB Output is correct
4 Correct 3 ms 1024 KB Output is correct
5 Correct 3 ms 1024 KB Output is correct
6 Correct 4 ms 1024 KB Output is correct
7 Correct 4 ms 1024 KB Output is correct
8 Correct 3 ms 1024 KB Output is correct
9 Correct 3 ms 1024 KB Output is correct
10 Correct 3 ms 1024 KB Output is correct
11 Correct 3 ms 1152 KB Output is correct
12 Correct 4 ms 1152 KB Output is correct
13 Correct 4 ms 1024 KB Output is correct
14 Correct 4 ms 1152 KB Output is correct
15 Correct 4 ms 1152 KB Output is correct
16 Correct 3 ms 1024 KB Output is correct
17 Correct 4 ms 1152 KB Output is correct
18 Correct 3 ms 1024 KB Output is correct
19 Correct 3 ms 1024 KB Output is correct
20 Correct 6 ms 1152 KB Output is correct
21 Correct 3 ms 1024 KB Output is correct
22 Correct 3 ms 1024 KB Output is correct
23 Correct 3 ms 1160 KB Output is correct
24 Correct 4 ms 1152 KB Output is correct
25 Correct 4 ms 1152 KB Output is correct
26 Correct 6 ms 1152 KB Output is correct
27 Correct 6 ms 1152 KB Output is correct
28 Correct 3 ms 1152 KB Output is correct
29 Correct 5 ms 1280 KB Output is correct
30 Correct 4 ms 1152 KB Output is correct
31 Correct 4 ms 1152 KB Output is correct
32 Correct 4 ms 1152 KB Output is correct
33 Correct 5 ms 1280 KB Output is correct
34 Correct 6 ms 1280 KB Output is correct
35 Correct 10 ms 1408 KB Output is correct
36 Correct 4 ms 1152 KB Output is correct
37 Correct 9 ms 1280 KB Output is correct
38 Correct 13 ms 1408 KB Output is correct
39 Correct 14 ms 1408 KB Output is correct
40 Correct 11 ms 1408 KB Output is correct
41 Correct 11 ms 1408 KB Output is correct
42 Correct 62 ms 1280 KB Output is correct
43 Correct 41 ms 1400 KB Output is correct
44 Correct 54 ms 1340 KB Output is correct
45 Correct 9 ms 1408 KB Output is correct
46 Correct 9 ms 1408 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 1024 KB Output is correct
2 Correct 3 ms 1024 KB Output is correct
3 Correct 3 ms 1024 KB Output is correct
4 Correct 3 ms 1024 KB Output is correct
5 Correct 2 ms 1024 KB Output is correct
6 Correct 3 ms 996 KB Output is correct
7 Correct 3 ms 1024 KB Output is correct
8 Correct 3 ms 1024 KB Output is correct
9 Correct 3 ms 1072 KB Output is correct
10 Correct 2 ms 1024 KB Output is correct
11 Correct 3 ms 1024 KB Output is correct
12 Correct 3 ms 1024 KB Output is correct
13 Correct 4 ms 1024 KB Output is correct
14 Correct 2 ms 1152 KB Output is correct
15 Correct 3 ms 1024 KB Output is correct
16 Correct 3 ms 1024 KB Output is correct
17 Correct 4 ms 1152 KB Output is correct
18 Correct 2 ms 1024 KB Output is correct
19 Correct 2 ms 1024 KB Output is correct
20 Correct 6 ms 1152 KB Output is correct
21 Correct 2 ms 1024 KB Output is correct
22 Correct 3 ms 1024 KB Output is correct
23 Correct 3 ms 1024 KB Output is correct
24 Correct 3 ms 1152 KB Output is correct
25 Correct 4 ms 1124 KB Output is correct
26 Correct 6 ms 1136 KB Output is correct
27 Correct 6 ms 1024 KB Output is correct
28 Correct 4 ms 1152 KB Output is correct
29 Correct 4 ms 1280 KB Output is correct
30 Correct 5 ms 1152 KB Output is correct
31 Correct 3 ms 1180 KB Output is correct
32 Correct 4 ms 1176 KB Output is correct
33 Correct 5 ms 1280 KB Output is correct
34 Correct 6 ms 1280 KB Output is correct
35 Correct 9 ms 1408 KB Output is correct
36 Correct 3 ms 1128 KB Output is correct
37 Correct 7 ms 1280 KB Output is correct
38 Correct 15 ms 1332 KB Output is correct
39 Correct 10 ms 1400 KB Output is correct
40 Correct 12 ms 1564 KB Output is correct
41 Correct 15 ms 1428 KB Output is correct
42 Correct 48 ms 1348 KB Output is correct
43 Correct 47 ms 1280 KB Output is correct
44 Correct 45 ms 1344 KB Output is correct
45 Correct 14 ms 1408 KB Output is correct
46 Correct 9 ms 1408 KB Output is correct
47 Correct 19 ms 2148 KB Output is correct
48 Correct 9 ms 1664 KB Output is correct
49 Correct 8 ms 1536 KB Output is correct
50 Correct 7 ms 1568 KB Output is correct
51 Correct 33 ms 2928 KB Output is correct
52 Correct 40 ms 2428 KB Output is correct
53 Correct 21 ms 2428 KB Output is correct
54 Correct 4 ms 1408 KB Output is correct
55 Correct 4 ms 1408 KB Output is correct
56 Correct 686 ms 2556 KB Output is correct
57 Correct 57 ms 3588 KB Output is correct
58 Correct 647 ms 1536 KB Output is correct
59 Correct 579 ms 1592 KB Output is correct
60 Correct 630 ms 1592 KB Output is correct
61 Correct 471 ms 1596 KB Output is correct
62 Correct 13 ms 2048 KB Output is correct
63 Correct 33 ms 2552 KB Output is correct
64 Correct 39 ms 3620 KB Output is correct
65 Correct 59 ms 3564 KB Output is correct
66 Correct 70 ms 3572 KB Output is correct
67 Correct 63 ms 3572 KB Output is correct