oj.uz

Submission #432285

# Submission time Handle Problem Language Result Execution time Memory
432285 2021-06-18T07:21:32 Z Mlxa Stations (IOI20_stations) C++14
100 / 100
 952 ms 732 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define all(x) x.begin(), x.end()
#define mp make_pair
#define mt make_tuple
#define x first
#define y second
#include "stations.h"

vector<int> label(int n, int k, vector<int> eu, vector<int> ev) {
	assert(k >= n - 1);
	vector<int> labels(n), order;
	vector<vector<int>> g(n);
	for (int i = 0; i < n - 1; ++i) {
		g[ev[i]].push_back(eu[i]);
		g[eu[i]].push_back(ev[i]);
	}
	function<void(int, int, bool)> dfs = [&](int v, int p, bool in) {
		if (in) {
			order.push_back(v);
		}
		for (int u : g[v]) {
			if (u != p) {
				dfs(u, v, !in);
			}
		}
		if (!in) {
			order.push_back(v);
		}
	};
	dfs(0, 0, 1);
	for (int i = 0; i < n; ++i) {
		labels[order[i]] = i;
	}
	return labels;
}

int find_next_station(int s, int t, vector<int> c) {
	assert(is_sorted(all(c)));
	assert(s != t);
	if (c.size() == 1) {
		return c[0];
	}
	if (c[0] < s) {
		assert(c.back() < s);
		if (t < c.front()) {
			return c.front();
		}
		for (int i = 0; i + 1 < (int)c.size(); ++i) {
			if (c[i] <= t && t < c[i + 1]) {
				return c[i];
			}
		}
		if (c.back() <= t && t < s) {
			return c.back();
		}
		assert(t > s);
		return c[0];
	} else {
		assert(c.front() > s);
		if (t < s) {
			return c.back();
		}
		for (int e : c) {
			if (t <= e) {
				return e;
			}
		}
		return c.back();
	}
}

#ifdef LC
#include "stub.cpp"
#endif

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 504 ms 664 KB Output is correct
2 Correct 463 ms 648 KB Output is correct
3 Correct 869 ms 400 KB Output is correct
4 Correct 662 ms 484 KB Output is correct
5 Correct 626 ms 400 KB Output is correct
6 Correct 491 ms 528 KB Output is correct
7 Correct 406 ms 596 KB Output is correct
8 Correct 4 ms 476 KB Output is correct
9 Correct 5 ms 468 KB Output is correct
10 Correct 2 ms 476 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 471 ms 472 KB Output is correct
2 Correct 551 ms 508 KB Output is correct
3 Correct 933 ms 400 KB Output is correct
4 Correct 623 ms 584 KB Output is correct
5 Correct 592 ms 468 KB Output is correct
6 Correct 445 ms 656 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 546 ms 604 KB Output is correct
2 Correct 488 ms 612 KB Output is correct
3 Correct 725 ms 544 KB Output is correct
4 Correct 806 ms 404 KB Output is correct
5 Correct 599 ms 488 KB Output is correct
6 Correct 502 ms 612 KB Output is correct
7 Correct 448 ms 616 KB Output is correct
8 Correct 2 ms 468 KB Output is correct
9 Correct 4 ms 468 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 610 ms 488 KB Output is correct
12 Correct 475 ms 732 KB Output is correct
13 Correct 463 ms 692 KB Output is correct
14 Correct 454 ms 520 KB Output is correct
15 Correct 51 ms 468 KB Output is correct
16 Correct 61 ms 548 KB Output is correct
17 Correct 112 ms 576 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 952 ms 400 KB Output is correct
2 Correct 745 ms 400 KB Output is correct
3 Correct 649 ms 400 KB Output is correct
4 Correct 3 ms 468 KB Output is correct
5 Correct 6 ms 448 KB Output is correct
6 Correct 3 ms 468 KB Output is correct
7 Correct 623 ms 528 KB Output is correct
8 Correct 868 ms 400 KB Output is correct
9 Correct 687 ms 400 KB Output is correct
10 Correct 586 ms 484 KB Output is correct
11 Correct 6 ms 476 KB Output is correct
12 Correct 7 ms 476 KB Output is correct
13 Correct 5 ms 468 KB Output is correct
14 Correct 4 ms 468 KB Output is correct
15 Correct 2 ms 468 KB Output is correct
16 Correct 488 ms 400 KB Output is correct
17 Correct 485 ms 520 KB Output is correct
18 Correct 457 ms 612 KB Output is correct
19 Correct 526 ms 528 KB Output is correct
20 Correct 539 ms 484 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 572 ms 656 KB Output is correct
2 Correct 483 ms 616 KB Output is correct
3 Correct 915 ms 400 KB Output is correct
4 Correct 641 ms 468 KB Output is correct
5 Correct 623 ms 528 KB Output is correct
6 Correct 465 ms 656 KB Output is correct
7 Correct 494 ms 520 KB Output is correct
8 Correct 3 ms 468 KB Output is correct
9 Correct 4 ms 468 KB Output is correct
10 Correct 1 ms 468 KB Output is correct
11 Correct 459 ms 528 KB Output is correct
12 Correct 541 ms 476 KB Output is correct
13 Correct 879 ms 400 KB Output is correct
14 Correct 697 ms 472 KB Output is correct
15 Correct 589 ms 400 KB Output is correct
16 Correct 437 ms 528 KB Output is correct
17 Correct 569 ms 400 KB Output is correct
18 Correct 491 ms 696 KB Output is correct
19 Correct 474 ms 608 KB Output is correct
20 Correct 456 ms 656 KB Output is correct
21 Correct 57 ms 428 KB Output is correct
22 Correct 73 ms 528 KB Output is correct
23 Correct 98 ms 556 KB Output is correct
24 Correct 7 ms 420 KB Output is correct
25 Correct 6 ms 472 KB Output is correct
26 Correct 4 ms 476 KB Output is correct
27 Correct 4 ms 468 KB Output is correct
28 Correct 1 ms 472 KB Output is correct
29 Correct 503 ms 528 KB Output is correct
30 Correct 485 ms 400 KB Output is correct
31 Correct 543 ms 492 KB Output is correct
32 Correct 532 ms 400 KB Output is correct
33 Correct 531 ms 400 KB Output is correct
34 Correct 309 ms 620 KB Output is correct
35 Correct 431 ms 684 KB Output is correct
36 Correct 484 ms 520 KB Output is correct
37 Correct 460 ms 528 KB Output is correct
38 Correct 498 ms 692 KB Output is correct
39 Correct 489 ms 568 KB Output is correct
40 Correct 487 ms 596 KB Output is correct
41 Correct 450 ms 544 KB Output is correct
42 Correct 71 ms 528 KB Output is correct
43 Correct 99 ms 496 KB Output is correct
44 Correct 135 ms 624 KB Output is correct
45 Correct 175 ms 528 KB Output is correct
46 Correct 311 ms 528 KB Output is correct
47 Correct 334 ms 616 KB Output is correct
48 Correct 65 ms 544 KB Output is correct
49 Correct 66 ms 636 KB Output is correct