Submission #14388

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
14388	2015-05-13T16:46:03 Z	kriii	Jakarta Skyscrapers (APIO15_skyscraper)	C++14	100 / 100	148 ms	8308 KB

skyscraper

#include <stdio.h>
#include <vector>
#include <algorithm>
#include <set>
using namespace std;

int P,N,B[30003],V[30003]; vector<int> G[30003];
int c,u[2][60003],v[2][60003],d[30003];
set<int> chk[30003];

void add(int t, int x)
{
	u[t][c] = B[x]; v[t][c] = +V[x]; c++;
	u[t][c] = B[x]; v[t][c] = -V[x]; c++;
}

int main()
{
	scanf ("%d %d",&P,&N);
	for (int i=0;i<P;i++) d[i] = -1;
	for (int i=0;i<N;i++){
		scanf ("%d %d",&B[i],&V[i]);
		G[B[i]].push_back(i);
	}
	d[B[0]] = 0;
	for (int x : G[B[0]]) add(0,x);
	for (int p=1;;p++){
		int lc = c; c = 0; bool ed = 1;
		int pr = (p + 1) % 2, nx = p % 2;
		for (int i=0;i<lc;i++){
			u[pr][i] += v[pr][i];
			if (0 <= u[pr][i] && u[pr][i] < P){
				ed = 0;
				if (!chk[u[pr][i]].count(abs(v[pr][i]))){
					u[nx][c] = u[pr][i]; v[nx][c] = v[pr][i]; c++;
				}
				if (d[u[pr][i]] == -1){
					d[u[pr][i]] = p; ed = 0;
					chk[u[pr][i]].insert(abs(v[pr][i]));
					for (int x : G[u[pr][i]]){
						if (abs(v[pr][i]) != V[x]){
							add(nx,x);
							chk[u[pr][i]].insert(V[x]);
						}
					}
				}
			}
		}
		if (ed) break;
	}

	printf ("%d\n",d[B[1]]);

	return 0;
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	4612 KB	Output is correct
2	Correct	0 ms	4612 KB	Output is correct
3	Correct	0 ms	4612 KB	Output is correct
4	Correct	0 ms	4612 KB	Output is correct
5	Correct	0 ms	4612 KB	Output is correct
6	Correct	0 ms	4612 KB	Output is correct
7	Correct	0 ms	4612 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	4612 KB	Output is correct
2	Correct	0 ms	4612 KB	Output is correct
3	Correct	0 ms	4612 KB	Output is correct
4	Correct	0 ms	4612 KB	Output is correct
5	Correct	0 ms	4612 KB	Output is correct
6	Correct	0 ms	4612 KB	Output is correct
7	Correct	0 ms	4612 KB	Output is correct
8	Correct	0 ms	4612 KB	Output is correct
9	Correct	0 ms	4612 KB	Output is correct
10	Correct	0 ms	4612 KB	Output is correct
11	Correct	0 ms	4612 KB	Output is correct
12	Correct	0 ms	4612 KB	Output is correct
13	Correct	0 ms	4612 KB	Output is correct
14	Correct	0 ms	4612 KB	Output is correct
15	Correct	2 ms	4612 KB	Output is correct

Subtask #3
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	4612 KB	Output is correct
2	Correct	0 ms	4612 KB	Output is correct
3	Correct	0 ms	4612 KB	Output is correct
4	Correct	0 ms	4612 KB	Output is correct
5	Correct	0 ms	4612 KB	Output is correct
6	Correct	0 ms	4612 KB	Output is correct
7	Correct	0 ms	4612 KB	Output is correct
8	Correct	0 ms	4612 KB	Output is correct
9	Correct	0 ms	4612 KB	Output is correct
10	Correct	0 ms	4612 KB	Output is correct
11	Correct	2 ms	4612 KB	Output is correct
12	Correct	0 ms	4612 KB	Output is correct
13	Correct	0 ms	4612 KB	Output is correct
14	Correct	0 ms	4612 KB	Output is correct
15	Correct	0 ms	4612 KB	Output is correct
16	Correct	0 ms	4612 KB	Output is correct
17	Correct	3 ms	4744 KB	Output is correct
18	Correct	0 ms	4612 KB	Output is correct
19	Correct	0 ms	4612 KB	Output is correct
20	Correct	0 ms	4744 KB	Output is correct
21	Correct	0 ms	4612 KB	Output is correct
22	Correct	0 ms	4612 KB	Output is correct
23	Correct	0 ms	4744 KB	Output is correct
24	Correct	1 ms	4744 KB	Output is correct
25	Correct	0 ms	4744 KB	Output is correct
26	Correct	0 ms	4612 KB	Output is correct
27	Correct	0 ms	4612 KB	Output is correct
28	Correct	0 ms	4744 KB	Output is correct
29	Correct	2 ms	4744 KB	Output is correct
30	Correct	0 ms	4612 KB	Output is correct
31	Correct	2 ms	4612 KB	Output is correct
32	Correct	0 ms	4612 KB	Output is correct
33	Correct	0 ms	4744 KB	Output is correct
34	Correct	0 ms	4744 KB	Output is correct

Subtask #4
21.0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	4612 KB	Output is correct
2	Correct	1 ms	4612 KB	Output is correct
3	Correct	0 ms	4612 KB	Output is correct
4	Correct	0 ms	4612 KB	Output is correct
5	Correct	0 ms	4612 KB	Output is correct
6	Correct	0 ms	4612 KB	Output is correct
7	Correct	0 ms	4612 KB	Output is correct
8	Correct	0 ms	4612 KB	Output is correct
9	Correct	0 ms	4612 KB	Output is correct
10	Correct	0 ms	4612 KB	Output is correct
11	Correct	1 ms	4612 KB	Output is correct
12	Correct	0 ms	4612 KB	Output is correct
13	Correct	0 ms	4612 KB	Output is correct
14	Correct	0 ms	4612 KB	Output is correct
15	Correct	0 ms	4612 KB	Output is correct
16	Correct	0 ms	4612 KB	Output is correct
17	Correct	0 ms	4744 KB	Output is correct
18	Correct	0 ms	4612 KB	Output is correct
19	Correct	0 ms	4612 KB	Output is correct
20	Correct	2 ms	4744 KB	Output is correct
21	Correct	0 ms	4612 KB	Output is correct
22	Correct	0 ms	4612 KB	Output is correct
23	Correct	0 ms	4744 KB	Output is correct
24	Correct	0 ms	4744 KB	Output is correct
25	Correct	0 ms	4744 KB	Output is correct
26	Correct	2 ms	4612 KB	Output is correct
27	Correct	0 ms	4612 KB	Output is correct
28	Correct	0 ms	4744 KB	Output is correct
29	Correct	0 ms	4744 KB	Output is correct
30	Correct	0 ms	4612 KB	Output is correct
31	Correct	0 ms	4612 KB	Output is correct
32	Correct	0 ms	4612 KB	Output is correct
33	Correct	4 ms	4744 KB	Output is correct
34	Correct	2 ms	4744 KB	Output is correct
35	Correct	14 ms	5932 KB	Output is correct
36	Correct	4 ms	4876 KB	Output is correct
37	Correct	21 ms	5668 KB	Output is correct
38	Correct	27 ms	6196 KB	Output is correct
39	Correct	15 ms	6196 KB	Output is correct
40	Correct	26 ms	6196 KB	Output is correct
41	Correct	17 ms	6196 KB	Output is correct
42	Correct	0 ms	4744 KB	Output is correct
43	Correct	19 ms	4744 KB	Output is correct
44	Correct	10 ms	4876 KB	Output is correct
45	Correct	23 ms	6196 KB	Output is correct
46	Correct	23 ms	6196 KB	Output is correct

Subtask #5
43.0 / 43.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	4612 KB	Output is correct
2	Correct	0 ms	4612 KB	Output is correct
3	Correct	0 ms	4612 KB	Output is correct
4	Correct	0 ms	4612 KB	Output is correct
5	Correct	0 ms	4612 KB	Output is correct
6	Correct	0 ms	4612 KB	Output is correct
7	Correct	0 ms	4612 KB	Output is correct
8	Correct	0 ms	4612 KB	Output is correct
9	Correct	0 ms	4612 KB	Output is correct
10	Correct	0 ms	4612 KB	Output is correct
11	Correct	0 ms	4612 KB	Output is correct
12	Correct	0 ms	4612 KB	Output is correct
13	Correct	2 ms	4612 KB	Output is correct
14	Correct	0 ms	4612 KB	Output is correct
15	Correct	0 ms	4612 KB	Output is correct
16	Correct	0 ms	4612 KB	Output is correct
17	Correct	0 ms	4744 KB	Output is correct
18	Correct	0 ms	4612 KB	Output is correct
19	Correct	0 ms	4612 KB	Output is correct
20	Correct	0 ms	4744 KB	Output is correct
21	Correct	0 ms	4612 KB	Output is correct
22	Correct	0 ms	4612 KB	Output is correct
23	Correct	0 ms	4744 KB	Output is correct
24	Correct	0 ms	4744 KB	Output is correct
25	Correct	0 ms	4744 KB	Output is correct
26	Correct	2 ms	4612 KB	Output is correct
27	Correct	3 ms	4612 KB	Output is correct
28	Correct	0 ms	4744 KB	Output is correct
29	Correct	0 ms	4744 KB	Output is correct
30	Correct	0 ms	4612 KB	Output is correct
31	Correct	2 ms	4612 KB	Output is correct
32	Correct	0 ms	4612 KB	Output is correct
33	Correct	4 ms	4744 KB	Output is correct
34	Correct	0 ms	4744 KB	Output is correct
35	Correct	14 ms	5932 KB	Output is correct
36	Correct	0 ms	4876 KB	Output is correct
37	Correct	23 ms	5668 KB	Output is correct
38	Correct	27 ms	6196 KB	Output is correct
39	Correct	20 ms	6196 KB	Output is correct
40	Correct	16 ms	6196 KB	Output is correct
41	Correct	28 ms	6196 KB	Output is correct
42	Correct	9 ms	4744 KB	Output is correct
43	Correct	19 ms	4744 KB	Output is correct
44	Correct	9 ms	4876 KB	Output is correct
45	Correct	21 ms	6196 KB	Output is correct
46	Correct	23 ms	6196 KB	Output is correct
47	Correct	45 ms	6592 KB	Output is correct
48	Correct	6 ms	5008 KB	Output is correct
49	Correct	12 ms	5008 KB	Output is correct
50	Correct	4 ms	4876 KB	Output is correct
51	Correct	37 ms	7912 KB	Output is correct
52	Correct	35 ms	7912 KB	Output is correct
53	Correct	15 ms	7912 KB	Output is correct
54	Correct	2 ms	5272 KB	Output is correct
55	Correct	0 ms	5536 KB	Output is correct
56	Correct	6 ms	6856 KB	Output is correct
57	Correct	22 ms	6196 KB	Output is correct
58	Correct	10 ms	6064 KB	Output is correct
59	Correct	15 ms	6064 KB	Output is correct
60	Correct	25 ms	6068 KB	Output is correct
61	Correct	21 ms	6212 KB	Output is correct
62	Correct	32 ms	8308 KB	Output is correct
63	Correct	67 ms	7516 KB	Output is correct
64	Correct	66 ms	7516 KB	Output is correct
65	Correct	87 ms	7516 KB	Output is correct
66	Correct	148 ms	7516 KB	Output is correct
67	Correct	148 ms	7516 KB	Output is correct

Submission #14388

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