답안 #537839

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
537839 2022-03-15T16:28:19 Z Gurban Jakarta Skyscrapers (APIO15_skyscraper) C++17
100 / 100
755 ms 28224 KB
#include "bits/stdc++.h"
using namespace std;

using ll = long long;

const int maxn=3e4+5;
const int B = 192;
int n,m,st,fn;
int b[maxn],p[maxn];
int dis[maxn * B];
bool vis[maxn * B],done[maxn];
vector<int>doge[maxn];

int main(){
	ios::sync_with_stdio(false);
	cin.tie(0);

	cin >> n >> m;
	int sq = sqrt(n)+1;
	for(int i = 0;i < m;i++){
		cin >> b[i] >> p[i];
		if(i == 0) st = b[i];
		if(i == 1) fn = b[i];
		doge[b[i]].push_back(p[i]);
	}

	for(int i = 0;i < n * sq;i++) dis[i] = 1e9;

	dis[st * sq] = 0;
	priority_queue<pair<int,int>>q;
	q.push({0,st * sq});
	while(!q.empty()){
		int x = q.top().second;
		q.pop();
		if(vis[x]) continue;
		vis[x] = 1;
		
		int bb = x / sq;
		int pw = x % sq;

		// cout<<bb<<' '<<pw<<'\n';

		if(!pw){
			for(auto i : doge[bb]){
				if(i < sq){
					int to = bb * sq + i;
					if(dis[to] > dis[x]){
						dis[to] = dis[x];
						q.push({-dis[to],to});
					}
				}
				else {
					for(int j = 1;;j++){
						int to = bb - i * j;
						if(to < 0) break;
						if(dis[to * sq] > dis[x] + j){
							dis[to * sq] = dis[x] + j;
							q.push({-dis[to * sq],to * sq});
						}
					}
					for(int j = 1;;j++){
						int to = bb + i * j;
						if(to >= n) break;
						if(dis[to * sq] > dis[x] + j){
							dis[to * sq] = dis[x] + j;
							q.push({-dis[to * sq],to * sq});
						}
					}
				}
			}
		}
		else {
			if(dis[bb * sq] > dis[x]){
				dis[bb * sq] = dis[x];
				q.push({-dis[bb*sq],bb*sq});
			}

			if(bb - pw >= 0 and dis[(bb - pw) * sq + pw] > dis[x] + 1){
				dis[(bb - pw) * sq + pw] = dis[x] + 1;
				q.push({-dis[(bb - pw) * sq + pw],(bb - pw) * sq + pw});
			}
			if(bb + pw < n and dis[(bb + pw) * sq + pw] > dis[x] + 1){
				dis[(bb + pw) * sq + pw] = dis[x] + 1;
				q.push({-dis[(bb + pw) * sq + pw],(bb + pw) * sq + pw});
			}	
		}
	}

	if(dis[fn * sq] == 1e9) cout<<-1;
	else cout<<dis[fn * sq];
}
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 984 KB Output is correct
4 Correct 1 ms 988 KB Output is correct
5 Correct 1 ms 1040 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 984 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 984 KB Output is correct
2 Correct 1 ms 984 KB Output is correct
3 Correct 1 ms 1040 KB Output is correct
4 Correct 1 ms 984 KB Output is correct
5 Correct 1 ms 980 KB Output is correct
6 Correct 1 ms 1108 KB Output is correct
7 Correct 1 ms 980 KB Output is correct
8 Correct 1 ms 980 KB Output is correct
9 Correct 1 ms 980 KB Output is correct
10 Correct 1 ms 980 KB Output is correct
11 Correct 1 ms 1108 KB Output is correct
12 Correct 1 ms 1040 KB Output is correct
13 Correct 1 ms 1044 KB Output is correct
14 Correct 1 ms 1108 KB Output is correct
15 Correct 1 ms 1108 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 980 KB Output is correct
3 Correct 1 ms 1036 KB Output is correct
4 Correct 1 ms 980 KB Output is correct
5 Correct 1 ms 980 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 1044 KB Output is correct
8 Correct 1 ms 1036 KB Output is correct
9 Correct 1 ms 1036 KB Output is correct
10 Correct 1 ms 1108 KB Output is correct
11 Correct 1 ms 1108 KB Output is correct
12 Correct 1 ms 1048 KB Output is correct
13 Correct 1 ms 1108 KB Output is correct
14 Correct 1 ms 1108 KB Output is correct
15 Correct 1 ms 1040 KB Output is correct
16 Correct 1 ms 980 KB Output is correct
17 Correct 2 ms 1236 KB Output is correct
18 Correct 1 ms 1364 KB Output is correct
19 Correct 1 ms 1364 KB Output is correct
20 Correct 1 ms 1492 KB Output is correct
21 Correct 1 ms 1108 KB Output is correct
22 Correct 1 ms 1292 KB Output is correct
23 Correct 2 ms 1304 KB Output is correct
24 Correct 2 ms 1432 KB Output is correct
25 Correct 2 ms 1564 KB Output is correct
26 Correct 2 ms 1492 KB Output is correct
27 Correct 2 ms 1492 KB Output is correct
28 Correct 2 ms 1492 KB Output is correct
29 Correct 8 ms 1492 KB Output is correct
30 Correct 3 ms 1492 KB Output is correct
31 Correct 5 ms 1416 KB Output is correct
32 Correct 3 ms 1540 KB Output is correct
33 Correct 10 ms 1608 KB Output is correct
34 Correct 11 ms 1596 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 1 ms 1032 KB Output is correct
3 Correct 1 ms 980 KB Output is correct
4 Correct 1 ms 1040 KB Output is correct
5 Correct 1 ms 1032 KB Output is correct
6 Correct 1 ms 980 KB Output is correct
7 Correct 1 ms 980 KB Output is correct
8 Correct 1 ms 980 KB Output is correct
9 Correct 1 ms 1036 KB Output is correct
10 Correct 1 ms 1032 KB Output is correct
11 Correct 2 ms 1108 KB Output is correct
12 Correct 1 ms 980 KB Output is correct
13 Correct 2 ms 980 KB Output is correct
14 Correct 1 ms 1108 KB Output is correct
15 Correct 2 ms 1108 KB Output is correct
16 Correct 1 ms 1068 KB Output is correct
17 Correct 3 ms 1176 KB Output is correct
18 Correct 1 ms 1364 KB Output is correct
19 Correct 1 ms 1364 KB Output is correct
20 Correct 2 ms 1492 KB Output is correct
21 Correct 1 ms 1044 KB Output is correct
22 Correct 1 ms 1364 KB Output is correct
23 Correct 2 ms 1364 KB Output is correct
24 Correct 2 ms 1492 KB Output is correct
25 Correct 2 ms 1492 KB Output is correct
26 Correct 1 ms 1492 KB Output is correct
27 Correct 2 ms 1432 KB Output is correct
28 Correct 2 ms 1496 KB Output is correct
29 Correct 7 ms 1496 KB Output is correct
30 Correct 3 ms 1420 KB Output is correct
31 Correct 5 ms 1496 KB Output is correct
32 Correct 2 ms 1496 KB Output is correct
33 Correct 9 ms 1496 KB Output is correct
34 Correct 9 ms 1496 KB Output is correct
35 Correct 10 ms 1948 KB Output is correct
36 Correct 3 ms 1368 KB Output is correct
37 Correct 13 ms 2052 KB Output is correct
38 Correct 13 ms 2264 KB Output is correct
39 Correct 12 ms 2264 KB Output is correct
40 Correct 13 ms 2264 KB Output is correct
41 Correct 12 ms 2292 KB Output is correct
42 Correct 6 ms 2120 KB Output is correct
43 Correct 5 ms 2080 KB Output is correct
44 Correct 5 ms 2072 KB Output is correct
45 Correct 15 ms 2208 KB Output is correct
46 Correct 14 ms 2256 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 992 KB Output is correct
2 Correct 1 ms 992 KB Output is correct
3 Correct 1 ms 992 KB Output is correct
4 Correct 2 ms 1048 KB Output is correct
5 Correct 1 ms 1052 KB Output is correct
6 Correct 1 ms 992 KB Output is correct
7 Correct 1 ms 984 KB Output is correct
8 Correct 1 ms 980 KB Output is correct
9 Correct 1 ms 984 KB Output is correct
10 Correct 1 ms 980 KB Output is correct
11 Correct 1 ms 1108 KB Output is correct
12 Correct 2 ms 1060 KB Output is correct
13 Correct 1 ms 980 KB Output is correct
14 Correct 1 ms 1108 KB Output is correct
15 Correct 1 ms 1044 KB Output is correct
16 Correct 1 ms 980 KB Output is correct
17 Correct 2 ms 1108 KB Output is correct
18 Correct 1 ms 1364 KB Output is correct
19 Correct 1 ms 1364 KB Output is correct
20 Correct 2 ms 1560 KB Output is correct
21 Correct 1 ms 1108 KB Output is correct
22 Correct 1 ms 1364 KB Output is correct
23 Correct 2 ms 1304 KB Output is correct
24 Correct 2 ms 1492 KB Output is correct
25 Correct 2 ms 1492 KB Output is correct
26 Correct 2 ms 1492 KB Output is correct
27 Correct 2 ms 1492 KB Output is correct
28 Correct 2 ms 1492 KB Output is correct
29 Correct 7 ms 1492 KB Output is correct
30 Correct 3 ms 1420 KB Output is correct
31 Correct 5 ms 1424 KB Output is correct
32 Correct 3 ms 1492 KB Output is correct
33 Correct 9 ms 1492 KB Output is correct
34 Correct 10 ms 1600 KB Output is correct
35 Correct 10 ms 1976 KB Output is correct
36 Correct 3 ms 1308 KB Output is correct
37 Correct 12 ms 1940 KB Output is correct
38 Correct 17 ms 2260 KB Output is correct
39 Correct 12 ms 2260 KB Output is correct
40 Correct 13 ms 2212 KB Output is correct
41 Correct 13 ms 2280 KB Output is correct
42 Correct 5 ms 2072 KB Output is correct
43 Correct 5 ms 2116 KB Output is correct
44 Correct 6 ms 2132 KB Output is correct
45 Correct 14 ms 2212 KB Output is correct
46 Correct 15 ms 2132 KB Output is correct
47 Correct 71 ms 8912 KB Output is correct
48 Correct 14 ms 15820 KB Output is correct
49 Correct 14 ms 17700 KB Output is correct
50 Correct 15 ms 19940 KB Output is correct
51 Correct 61 ms 28012 KB Output is correct
52 Correct 74 ms 28224 KB Output is correct
53 Correct 29 ms 27696 KB Output is correct
54 Correct 15 ms 26552 KB Output is correct
55 Correct 18 ms 26512 KB Output is correct
56 Correct 25 ms 27876 KB Output is correct
57 Correct 78 ms 26620 KB Output is correct
58 Correct 22 ms 27092 KB Output is correct
59 Correct 26 ms 27220 KB Output is correct
60 Correct 29 ms 27160 KB Output is correct
61 Correct 25 ms 27252 KB Output is correct
62 Correct 58 ms 28024 KB Output is correct
63 Correct 55 ms 27852 KB Output is correct
64 Correct 57 ms 27716 KB Output is correct
65 Correct 239 ms 27884 KB Output is correct
66 Correct 755 ms 27964 KB Output is correct
67 Correct 750 ms 28164 KB Output is correct