답안 #391278

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
391278	2021-04-18T11:41:55 Z	Blagojce	Jakarta Skyscrapers (APIO15_skyscraper)	C++11	100 / 100	80 ms	7828 KB

skyscraper

#include <bits/stdc++.h>
#define fr(i, n, m) for(int i = (n); i < (m); i ++)
#define pb push_back
#define st first
#define nd second
#define pq priority_queue
#define all(x) begin(x), end(x)


using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int,int> pii;
const int i_inf = 1e9;
const ll inf = 1e18;
const ll mod = 1e9+7;
const ld eps = 1e-13;
const ld pi  = 3.14159265359;

mt19937 _rand(time(NULL));
clock_t z;

const int mxn = 4e4;

int n, m;

ll b[mxn], p[mxn];
ll dist[mxn];

vector<ll> g[mxn];
bool vis[mxn];


bool con[300][mxn];

void solve(){
	cin >> n >> m;
	fr(i, 0, m){
		cin >> b[i] >> p[i];
		
		if(p[i] < 300){
			if(!con[p[i]][b[i]]){
				con[p[i]][b[i]] = true;
				g[b[i]].pb(p[i]);
			}
		}
		else{
			g[b[i]].pb(p[i]);
		}
	}
	fr(i, 0, n) dist[i] = inf;
	
	pq <pair<ll,int> > Q;
	Q.push({0, b[0]});
	dist[b[0]] = 0;
	while(!Q.empty()){
		int c = Q.top().nd;
		ll w  = Q.top().st;
		Q.pop();
		if(c == b[1]){
			cout<<-w<<endl;
			return;
		}
		if(vis[c]) continue;
		vis[c] = true;
		for(auto u : g[c]){
			for(int i = c + u; i < n; i += u){
				if(dist[c] + (i-c)/u < dist[i]){
					dist[i] = dist[c] + (i-c)/u;
					Q.push({-dist[i], i});
				}
				if(u < 300 && con[u][i]) break;
				
			}
			for(int i = c - u; i >=0; i -= u){
				if(dist[c] + (c-i)/u < dist[i]){
					dist[i] = dist[c] + (c-i)/u;
					Q.push({-dist[i], i});
				}
				if(u < 300 && con[u][i]) break;
			}
		}
	}
	cout<<-1<<endl;
	
}

int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	solve();
}

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1228 KB	Output is correct
2	Correct	1 ms	1228 KB	Output is correct
3	Correct	1 ms	1228 KB	Output is correct
4	Correct	1 ms	1228 KB	Output is correct
5	Correct	1 ms	1228 KB	Output is correct
6	Correct	1 ms	1228 KB	Output is correct
7	Correct	1 ms	1228 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1232 KB	Output is correct
2	Correct	1 ms	1228 KB	Output is correct
3	Correct	1 ms	1228 KB	Output is correct
4	Correct	2 ms	1228 KB	Output is correct
5	Correct	1 ms	1228 KB	Output is correct
6	Correct	1 ms	1228 KB	Output is correct
7	Correct	1 ms	1228 KB	Output is correct
8	Correct	1 ms	1356 KB	Output is correct
9	Correct	1 ms	1356 KB	Output is correct
10	Correct	2 ms	1612 KB	Output is correct
11	Correct	2 ms	1740 KB	Output is correct
12	Correct	2 ms	1356 KB	Output is correct
13	Correct	1 ms	1228 KB	Output is correct
14	Correct	2 ms	1612 KB	Output is correct
15	Correct	2 ms	1612 KB	Output is correct

Subtask #3
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1228 KB	Output is correct
2	Correct	1 ms	1284 KB	Output is correct
3	Correct	1 ms	1228 KB	Output is correct
4	Correct	1 ms	1228 KB	Output is correct
5	Correct	1 ms	1228 KB	Output is correct
6	Correct	2 ms	1228 KB	Output is correct
7	Correct	1 ms	1228 KB	Output is correct
8	Correct	2 ms	1356 KB	Output is correct
9	Correct	1 ms	1300 KB	Output is correct
10	Correct	1 ms	1612 KB	Output is correct
11	Correct	2 ms	1740 KB	Output is correct
12	Correct	1 ms	1356 KB	Output is correct
13	Correct	1 ms	1228 KB	Output is correct
14	Correct	2 ms	1612 KB	Output is correct
15	Correct	2 ms	1612 KB	Output is correct
16	Correct	2 ms	2052 KB	Output is correct
17	Correct	3 ms	2636 KB	Output is correct
18	Correct	2 ms	1868 KB	Output is correct
19	Correct	1 ms	1612 KB	Output is correct
20	Correct	2 ms	1356 KB	Output is correct
21	Correct	2 ms	1740 KB	Output is correct
22	Correct	1 ms	1612 KB	Output is correct
23	Correct	2 ms	1868 KB	Output is correct
24	Correct	3 ms	2252 KB	Output is correct
25	Correct	2 ms	1356 KB	Output is correct
26	Correct	2 ms	1740 KB	Output is correct
27	Correct	2 ms	1612 KB	Output is correct
28	Correct	2 ms	1996 KB	Output is correct
29	Correct	3 ms	1640 KB	Output is correct
30	Correct	2 ms	1356 KB	Output is correct
31	Correct	2 ms	1484 KB	Output is correct
32	Correct	2 ms	1484 KB	Output is correct
33	Correct	3 ms	1868 KB	Output is correct
34	Correct	4 ms	1996 KB	Output is correct

Subtask #4
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1228 KB	Output is correct
2	Correct	1 ms	1228 KB	Output is correct
3	Correct	1 ms	1228 KB	Output is correct
4	Correct	2 ms	1228 KB	Output is correct
5	Correct	2 ms	1228 KB	Output is correct
6	Correct	1 ms	1228 KB	Output is correct
7	Correct	1 ms	1228 KB	Output is correct
8	Correct	1 ms	1356 KB	Output is correct
9	Correct	1 ms	1356 KB	Output is correct
10	Correct	2 ms	1612 KB	Output is correct
11	Correct	2 ms	1744 KB	Output is correct
12	Correct	2 ms	1356 KB	Output is correct
13	Correct	1 ms	1228 KB	Output is correct
14	Correct	2 ms	1612 KB	Output is correct
15	Correct	2 ms	1612 KB	Output is correct
16	Correct	2 ms	2124 KB	Output is correct
17	Correct	3 ms	2636 KB	Output is correct
18	Correct	2 ms	1868 KB	Output is correct
19	Correct	2 ms	1612 KB	Output is correct
20	Correct	2 ms	1356 KB	Output is correct
21	Correct	3 ms	1740 KB	Output is correct
22	Correct	2 ms	1612 KB	Output is correct
23	Correct	2 ms	1868 KB	Output is correct
24	Correct	3 ms	2252 KB	Output is correct
25	Correct	2 ms	1360 KB	Output is correct
26	Correct	2 ms	1748 KB	Output is correct
27	Correct	2 ms	1612 KB	Output is correct
28	Correct	2 ms	1996 KB	Output is correct
29	Correct	3 ms	1612 KB	Output is correct
30	Correct	2 ms	1356 KB	Output is correct
31	Correct	2 ms	1484 KB	Output is correct
32	Correct	2 ms	1484 KB	Output is correct
33	Correct	4 ms	1872 KB	Output is correct
34	Correct	3 ms	1996 KB	Output is correct
35	Correct	9 ms	3660 KB	Output is correct
36	Correct	3 ms	2636 KB	Output is correct
37	Correct	7 ms	3788 KB	Output is correct
38	Correct	11 ms	4044 KB	Output is correct
39	Correct	9 ms	3916 KB	Output is correct
40	Correct	10 ms	4044 KB	Output is correct
41	Correct	10 ms	4044 KB	Output is correct
42	Correct	6 ms	2252 KB	Output is correct
43	Correct	6 ms	1996 KB	Output is correct
44	Correct	7 ms	1740 KB	Output is correct
45	Correct	13 ms	3380 KB	Output is correct
46	Correct	12 ms	3448 KB	Output is correct

Subtask #5
43.0 / 43.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1228 KB	Output is correct
2	Correct	1 ms	1228 KB	Output is correct
3	Correct	1 ms	1228 KB	Output is correct
4	Correct	1 ms	1228 KB	Output is correct
5	Correct	1 ms	1228 KB	Output is correct
6	Correct	1 ms	1228 KB	Output is correct
7	Correct	1 ms	1228 KB	Output is correct
8	Correct	1 ms	1356 KB	Output is correct
9	Correct	1 ms	1356 KB	Output is correct
10	Correct	1 ms	1612 KB	Output is correct
11	Correct	2 ms	1740 KB	Output is correct
12	Correct	1 ms	1356 KB	Output is correct
13	Correct	1 ms	1228 KB	Output is correct
14	Correct	2 ms	1612 KB	Output is correct
15	Correct	3 ms	1612 KB	Output is correct
16	Correct	2 ms	2124 KB	Output is correct
17	Correct	3 ms	2636 KB	Output is correct
18	Correct	2 ms	1868 KB	Output is correct
19	Correct	1 ms	1612 KB	Output is correct
20	Correct	2 ms	1356 KB	Output is correct
21	Correct	2 ms	1740 KB	Output is correct
22	Correct	1 ms	1612 KB	Output is correct
23	Correct	3 ms	1868 KB	Output is correct
24	Correct	3 ms	2252 KB	Output is correct
25	Correct	2 ms	1356 KB	Output is correct
26	Correct	2 ms	1740 KB	Output is correct
27	Correct	2 ms	1612 KB	Output is correct
28	Correct	2 ms	1996 KB	Output is correct
29	Correct	3 ms	1612 KB	Output is correct
30	Correct	2 ms	1356 KB	Output is correct
31	Correct	2 ms	1484 KB	Output is correct
32	Correct	2 ms	1484 KB	Output is correct
33	Correct	4 ms	1868 KB	Output is correct
34	Correct	3 ms	1996 KB	Output is correct
35	Correct	9 ms	3660 KB	Output is correct
36	Correct	3 ms	2636 KB	Output is correct
37	Correct	8 ms	3788 KB	Output is correct
38	Correct	12 ms	4044 KB	Output is correct
39	Correct	9 ms	3916 KB	Output is correct
40	Correct	9 ms	4048 KB	Output is correct
41	Correct	10 ms	4044 KB	Output is correct
42	Correct	6 ms	2252 KB	Output is correct
43	Correct	6 ms	2060 KB	Output is correct
44	Correct	7 ms	1740 KB	Output is correct
45	Correct	11 ms	3372 KB	Output is correct
46	Correct	12 ms	3404 KB	Output is correct
47	Correct	13 ms	6864 KB	Output is correct
48	Correct	8 ms	3292 KB	Output is correct
49	Correct	7 ms	2892 KB	Output is correct
50	Correct	6 ms	2764 KB	Output is correct
51	Correct	18 ms	4820 KB	Output is correct
52	Correct	21 ms	4936 KB	Output is correct
53	Correct	10 ms	3020 KB	Output is correct
54	Correct	3 ms	1872 KB	Output is correct
55	Correct	3 ms	1872 KB	Output is correct
56	Correct	10 ms	2892 KB	Output is correct
57	Correct	3 ms	2760 KB	Output is correct
58	Correct	8 ms	2384 KB	Output is correct
59	Correct	9 ms	2812 KB	Output is correct
60	Correct	9 ms	3540 KB	Output is correct
61	Correct	11 ms	2956 KB	Output is correct
62	Correct	15 ms	4044 KB	Output is correct
63	Correct	39 ms	5312 KB	Output is correct
64	Correct	39 ms	5192 KB	Output is correct
65	Correct	52 ms	5824 KB	Output is correct
66	Correct	80 ms	7828 KB	Output is correct
67	Correct	71 ms	7788 KB	Output is correct

답안 #391278

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