oj.uz

Submission #328844

# Submission time Handle Problem Language Result Execution time Memory
328844 2020-11-18T08:01:24 Z dolphingarlic Stations (IOI20_stations) C++14
100 / 100
 928 ms 1232 KB 
#include "stations.h"
#include <vector>
#include <algorithm>

std::vector<int> graph[1000];
bool even[1000];
int tin[1000], tout[1000], timer;

void dfs(int node = 0, int parent = -1, bool even = true) {
	tin[node] = timer++;
	::even[node] = even;
	for (int i : graph[node]) if (i != parent) dfs(i, node, !even);
	tout[node] = timer++;
}

std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) {
	for (int i = 0; i < n; i++) graph[i].clear();
	for (int i = 0; i < n - 1; i++) {
		graph[u[i]].push_back(v[i]);
		graph[v[i]].push_back(u[i]);
	}
	timer = 0;
	dfs();
	std::vector<int> labels(n);
	for (int i = 0; i < n; i++) labels[i] = (even[i] ? tin[i] : tout[i]) / 2;
	return labels;
}

int find_next_station(int s, int t, std::vector<int> c) {
	int mx = *std::max_element(c.begin(), c.end());
	int mn = *std::min_element(c.begin(), c.end());
	if (s < mn) {
		if (t < s || t > mx) return mx;
		return *std::lower_bound(c.begin(), c.end(), t);
	} else {
		if (t > s || t < mn) return mn;
		return *prev(std::upper_bound(c.begin(), c.end(), t));
	}
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 525 ms 992 KB Output is correct
2 Correct 462 ms 864 KB Output is correct
3 Correct 889 ms 848 KB Output is correct
4 Correct 670 ms 856 KB Output is correct
5 Correct 567 ms 976 KB Output is correct
6 Correct 447 ms 1004 KB Output is correct
7 Correct 529 ms 760 KB Output is correct
8 Correct 2 ms 856 KB Output is correct
9 Correct 4 ms 884 KB Output is correct
10 Correct 1 ms 756 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 469 ms 796 KB Output is correct
2 Correct 565 ms 804 KB Output is correct
3 Correct 881 ms 848 KB Output is correct
4 Correct 714 ms 856 KB Output is correct
5 Correct 686 ms 736 KB Output is correct
6 Correct 453 ms 756 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 499 ms 884 KB Output is correct
2 Correct 433 ms 988 KB Output is correct
3 Correct 873 ms 788 KB Output is correct
4 Correct 780 ms 736 KB Output is correct
5 Correct 581 ms 976 KB Output is correct
6 Correct 501 ms 1184 KB Output is correct
7 Correct 480 ms 756 KB Output is correct
8 Correct 3 ms 776 KB Output is correct
9 Correct 4 ms 884 KB Output is correct
10 Correct 1 ms 736 KB Output is correct
11 Correct 579 ms 984 KB Output is correct
12 Correct 558 ms 1224 KB Output is correct
13 Correct 491 ms 1232 KB Output is correct
14 Correct 495 ms 756 KB Output is correct
15 Correct 55 ms 796 KB Output is correct
16 Correct 65 ms 864 KB Output is correct
17 Correct 109 ms 892 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 864 ms 896 KB Output is correct
2 Correct 662 ms 736 KB Output is correct
3 Correct 638 ms 848 KB Output is correct
4 Correct 3 ms 756 KB Output is correct
5 Correct 4 ms 776 KB Output is correct
6 Correct 1 ms 756 KB Output is correct
7 Correct 600 ms 864 KB Output is correct
8 Correct 928 ms 864 KB Output is correct
9 Correct 707 ms 756 KB Output is correct
10 Correct 698 ms 848 KB Output is correct
11 Correct 6 ms 848 KB Output is correct
12 Correct 7 ms 736 KB Output is correct
13 Correct 5 ms 796 KB Output is correct
14 Correct 5 ms 756 KB Output is correct
15 Correct 2 ms 736 KB Output is correct
16 Correct 575 ms 896 KB Output is correct
17 Correct 525 ms 756 KB Output is correct
18 Correct 520 ms 848 KB Output is correct
19 Correct 511 ms 976 KB Output is correct
20 Correct 515 ms 1008 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 535 ms 1132 KB Output is correct
2 Correct 431 ms 992 KB Output is correct
3 Correct 856 ms 848 KB Output is correct
4 Correct 832 ms 976 KB Output is correct
5 Correct 658 ms 848 KB Output is correct
6 Correct 467 ms 992 KB Output is correct
7 Correct 505 ms 756 KB Output is correct
8 Correct 3 ms 756 KB Output is correct
9 Correct 5 ms 736 KB Output is correct
10 Correct 1 ms 884 KB Output is correct
11 Correct 499 ms 756 KB Output is correct
12 Correct 628 ms 756 KB Output is correct
13 Correct 885 ms 756 KB Output is correct
14 Correct 560 ms 788 KB Output is correct
15 Correct 805 ms 756 KB Output is correct
16 Correct 459 ms 736 KB Output is correct
17 Correct 602 ms 736 KB Output is correct
18 Correct 470 ms 868 KB Output is correct
19 Correct 457 ms 908 KB Output is correct
20 Correct 451 ms 736 KB Output is correct
21 Correct 59 ms 848 KB Output is correct
22 Correct 66 ms 864 KB Output is correct
23 Correct 101 ms 864 KB Output is correct
24 Correct 5 ms 840 KB Output is correct
25 Correct 6 ms 848 KB Output is correct
26 Correct 4 ms 736 KB Output is correct
27 Correct 3 ms 736 KB Output is correct
28 Correct 1 ms 896 KB Output is correct
29 Correct 506 ms 884 KB Output is correct
30 Correct 512 ms 756 KB Output is correct
31 Correct 516 ms 848 KB Output is correct
32 Correct 509 ms 756 KB Output is correct
33 Correct 503 ms 848 KB Output is correct
34 Correct 311 ms 1004 KB Output is correct
35 Correct 429 ms 1216 KB Output is correct
36 Correct 475 ms 1100 KB Output is correct
37 Correct 500 ms 864 KB Output is correct
38 Correct 506 ms 992 KB Output is correct
39 Correct 497 ms 1112 KB Output is correct
40 Correct 423 ms 1120 KB Output is correct
41 Correct 455 ms 996 KB Output is correct
42 Correct 62 ms 864 KB Output is correct
43 Correct 102 ms 900 KB Output is correct
44 Correct 121 ms 904 KB Output is correct
45 Correct 153 ms 736 KB Output is correct
46 Correct 290 ms 796 KB Output is correct
47 Correct 311 ms 776 KB Output is correct
48 Correct 65 ms 1104 KB Output is correct
49 Correct 60 ms 1108 KB Output is correct