oj.uz

Submission #1018702

# Submission time Handle Problem Language Result Execution time Memory
1018702 2024-07-10T08:38:17 Z j_vdd16 Stations (IOI20_stations) C++17
100 / 100
 632 ms 1284 KB 
#include <algorithm>
#include <bitset>
#include <cstdint>
#include <cstring>
#include <iostream>
#include <limits.h>
#include <math.h>
#include <map>
#include <numeric>
#include <queue>
#include <set>
#include <stack>
#include <string>
#include <vector>

//#define int long long
#define loop(X, N) for(int X = 0; X < (N); X++)
#define all(V) V.begin(), V.end()
#define rall(V) V.rbegin(), V.rend()

using namespace std;

typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int, int> ii;
typedef vector<ii> vii;
typedef vector<vector<ii>> vvii;
typedef vector<bool> vb;
typedef vector<vector<bool>> vvb;

vvi adj;
vi labels;
int counter = 0;
void dfs(int node, int parent, bool isFirst)
{
	if (isFirst)
		labels[node] = counter++;

	for (int child : adj[node])
	{
		if (child == parent)
			continue;

		dfs(child, node, !isFirst);
	}

	if (!isFirst)
		labels[node] = counter++;
}

vi label(int n, int k, vi u, vi v)
{
	counter = 0;
	labels.assign(n, 0);
	adj.assign(n, {});

	loop(i, n - 1)
	{
		adj[u[i]].push_back(v[i]);
		adj[v[i]].push_back(u[i]);
	}

	dfs(0, -1, true);

	return labels;
}


int find_next_station(int s, int t, vi c)
{
	sort(all(c));
	if (c.back() < s)
	{
		if (t > s || t <= c[0])
			return c[0];

		for (int i = c.size() - 1; i >= 0; i--)
		{
			if (t >= c[i])
				return c[i];
		}
	}
	else
	{
		if (t < s || t >= c.back())
			return c.back();

		for (int i = 0; i < c.size(); i++)
		{
			if (t <= c[i])
				return c[i];
		}
	}
}

Compilation message

stations.cpp: In function 'int find_next_station(int, int, vi)':
stations.cpp:88:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   88 |   for (int i = 0; i < c.size(); i++)
      |                   ~~^~~~~~~~~~
stations.cpp:94:1: warning: control reaches end of non-void function [-Wreturn-type]
   94 | }
      | ^

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 352 ms 940 KB Output is correct
2 Correct 290 ms 940 KB Output is correct
3 Correct 632 ms 684 KB Output is correct
4 Correct 463 ms 684 KB Output is correct
5 Correct 411 ms 684 KB Output is correct
6 Correct 302 ms 684 KB Output is correct
7 Correct 310 ms 684 KB Output is correct
8 Correct 1 ms 764 KB Output is correct
9 Correct 2 ms 768 KB Output is correct
10 Correct 0 ms 768 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 303 ms 684 KB Output is correct
2 Correct 357 ms 684 KB Output is correct
3 Correct 571 ms 684 KB Output is correct
4 Correct 464 ms 684 KB Output is correct
5 Correct 400 ms 684 KB Output is correct
6 Correct 288 ms 684 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 367 ms 940 KB Output is correct
2 Correct 291 ms 940 KB Output is correct
3 Correct 605 ms 684 KB Output is correct
4 Correct 446 ms 684 KB Output is correct
5 Correct 407 ms 684 KB Output is correct
6 Correct 306 ms 684 KB Output is correct
7 Correct 298 ms 684 KB Output is correct
8 Correct 1 ms 764 KB Output is correct
9 Correct 1 ms 768 KB Output is correct
10 Correct 0 ms 776 KB Output is correct
11 Correct 428 ms 680 KB Output is correct
12 Correct 293 ms 932 KB Output is correct
13 Correct 326 ms 1016 KB Output is correct
14 Correct 270 ms 684 KB Output is correct
15 Correct 27 ms 788 KB Output is correct
16 Correct 38 ms 768 KB Output is correct
17 Correct 63 ms 736 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 607 ms 684 KB Output is correct
2 Correct 456 ms 684 KB Output is correct
3 Correct 390 ms 684 KB Output is correct
4 Correct 2 ms 764 KB Output is correct
5 Correct 1 ms 768 KB Output is correct
6 Correct 0 ms 768 KB Output is correct
7 Correct 414 ms 684 KB Output is correct
8 Correct 617 ms 684 KB Output is correct
9 Correct 482 ms 684 KB Output is correct
10 Correct 445 ms 684 KB Output is correct
11 Correct 3 ms 768 KB Output is correct
12 Correct 3 ms 768 KB Output is correct
13 Correct 2 ms 768 KB Output is correct
14 Correct 2 ms 768 KB Output is correct
15 Correct 0 ms 760 KB Output is correct
16 Correct 384 ms 936 KB Output is correct
17 Correct 386 ms 684 KB Output is correct
18 Correct 335 ms 684 KB Output is correct
19 Correct 349 ms 684 KB Output is correct
20 Correct 344 ms 684 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 367 ms 940 KB Output is correct
2 Correct 309 ms 940 KB Output is correct
3 Correct 569 ms 684 KB Output is correct
4 Correct 419 ms 684 KB Output is correct
5 Correct 398 ms 684 KB Output is correct
6 Correct 346 ms 936 KB Output is correct
7 Correct 302 ms 712 KB Output is correct
8 Correct 2 ms 776 KB Output is correct
9 Correct 2 ms 768 KB Output is correct
10 Correct 0 ms 768 KB Output is correct
11 Correct 308 ms 684 KB Output is correct
12 Correct 326 ms 684 KB Output is correct
13 Correct 600 ms 684 KB Output is correct
14 Correct 454 ms 684 KB Output is correct
15 Correct 418 ms 684 KB Output is correct
16 Correct 333 ms 684 KB Output is correct
17 Correct 410 ms 684 KB Output is correct
18 Correct 287 ms 684 KB Output is correct
19 Correct 340 ms 1020 KB Output is correct
20 Correct 293 ms 688 KB Output is correct
21 Correct 41 ms 764 KB Output is correct
22 Correct 38 ms 768 KB Output is correct
23 Correct 55 ms 716 KB Output is correct
24 Correct 2 ms 776 KB Output is correct
25 Correct 3 ms 776 KB Output is correct
26 Correct 2 ms 768 KB Output is correct
27 Correct 2 ms 776 KB Output is correct
28 Correct 0 ms 768 KB Output is correct
29 Correct 352 ms 684 KB Output is correct
30 Correct 340 ms 684 KB Output is correct
31 Correct 318 ms 684 KB Output is correct
32 Correct 325 ms 688 KB Output is correct
33 Correct 326 ms 684 KB Output is correct
34 Correct 202 ms 940 KB Output is correct
35 Correct 305 ms 940 KB Output is correct
36 Correct 306 ms 1284 KB Output is correct
37 Correct 326 ms 784 KB Output is correct
38 Correct 343 ms 764 KB Output is correct
39 Correct 300 ms 780 KB Output is correct
40 Correct 282 ms 932 KB Output is correct
41 Correct 321 ms 932 KB Output is correct
42 Correct 30 ms 736 KB Output is correct
43 Correct 82 ms 684 KB Output is correct
44 Correct 70 ms 748 KB Output is correct
45 Correct 123 ms 684 KB Output is correct
46 Correct 212 ms 684 KB Output is correct
47 Correct 183 ms 684 KB Output is correct
48 Correct 39 ms 1020 KB Output is correct
49 Correct 30 ms 796 KB Output is correct