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Submission #1080254

# Submission time Handle Problem Language Result Execution time Memory
1080254 2024-08-29T08:22:15 Z Faisal_Saqib Stations (IOI20_stations) C++17
52.3282 / 100
 647 ms 1188 KB 
#include "stations.h"
#include <vector>
#include <bits/stdc++.h>
using namespace std;
const int N=1e3+100;
const int M=1e3-1;
vector<int> ma[N];
int tin[N],tout[N],timer=-1;
void dfs(int v, int p)
{
    tin[v] = ++timer; // n

    for (auto u:ma[v]) {
        if (u != p)
            dfs(u, v);
    }

    tout[v] = timer; // n
}
bool is_ancestor(int u, int v)
{
	if(u==0)
		return 1;
	if(v==0)
		return 0;
	int tn=u/M;
	int tot=u%M + tn;
	int tn1=v/M;
	int tot1=v%M + tn1;
    return tn <= tn1 && tot >= tot1;
}
std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) {
	timer=-1;
	for(int i=0;i<(n);i++)ma[i].clear();
	vector<int> labels(n,0);
	for(int i=0;i<(n-1);i++)
	{
		ma[u[i]].push_back(v[i]);
		ma[v[i]].push_back(u[i]);
	}
	dfs(0,-1);
	// tout[i] >= tin[i]
	// tout[i]-tin[i] == sz[i]
	// 1<= sz[i] <=n
	for(int i=0;i<n;i++)
		labels[i]=(tin[i]*M)+(tout[i]-tin[i]);
	labels[0]=0;
	return labels;
}
int find_next_station(int s, int t, std::vector<int> c) {
	if(is_ancestor(s,t))
	{
		for(auto k:c)
		{
			if(is_ancestor(s,k) and is_ancestor(k,t)){
				return k;
			}
		}
	}
	for(auto k:c)
		if(is_ancestor(k,s))
			return k;
	return -1;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 344 KB Invalid labels (values out of range). scenario=0, k=1000, vertex=1, label=5997
2 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 776 KB Invalid labels (values out of range). scenario=0, k=1000, vertex=1, label=1509
2 Halted 0 ms 0 KB -

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 368 ms 684 KB Output is correct
2 Correct 293 ms 684 KB Output is correct
3 Correct 598 ms 684 KB Output is correct
4 Correct 470 ms 684 KB Output is correct
5 Correct 419 ms 684 KB Output is correct
6 Correct 315 ms 684 KB Output is correct
7 Correct 313 ms 684 KB Output is correct
8 Correct 1 ms 760 KB Output is correct
9 Correct 3 ms 768 KB Output is correct
10 Correct 0 ms 776 KB Output is correct
11 Correct 428 ms 684 KB Output is correct
12 Correct 349 ms 796 KB Output is correct
13 Correct 303 ms 800 KB Output is correct
14 Correct 302 ms 684 KB Output is correct
15 Correct 27 ms 768 KB Output is correct
16 Correct 35 ms 760 KB Output is correct
17 Correct 56 ms 688 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 592 ms 684 KB Output is correct
2 Correct 457 ms 680 KB Output is correct
3 Correct 398 ms 684 KB Output is correct
4 Correct 1 ms 768 KB Output is correct
5 Correct 2 ms 768 KB Output is correct
6 Correct 0 ms 768 KB Output is correct
7 Correct 427 ms 684 KB Output is correct
8 Correct 647 ms 684 KB Output is correct
9 Correct 453 ms 684 KB Output is correct
10 Correct 405 ms 684 KB Output is correct
11 Correct 2 ms 764 KB Output is correct
12 Correct 2 ms 768 KB Output is correct
13 Correct 2 ms 768 KB Output is correct
14 Correct 1 ms 768 KB Output is correct
15 Correct 1 ms 776 KB Output is correct
16 Correct 385 ms 684 KB Output is correct
17 Correct 337 ms 684 KB Output is correct
18 Correct 329 ms 684 KB Output is correct
19 Correct 320 ms 684 KB Output is correct
20 Correct 349 ms 684 KB Output is correct

Subtask #5
26.3282 / 61.0

# Verdict Execution time Memory Grader output
1 Partially correct 372 ms 684 KB Partially correct
2 Partially correct 311 ms 684 KB Partially correct
3 Correct 618 ms 684 KB Output is correct
4 Partially correct 438 ms 684 KB Partially correct
5 Partially correct 424 ms 684 KB Partially correct
6 Partially correct 297 ms 684 KB Partially correct
7 Partially correct 339 ms 684 KB Partially correct
8 Partially correct 2 ms 764 KB Partially correct
9 Partially correct 4 ms 764 KB Partially correct
10 Partially correct 0 ms 776 KB Partially correct
11 Partially correct 341 ms 684 KB Partially correct
12 Partially correct 348 ms 684 KB Partially correct
13 Correct 483 ms 684 KB Output is correct
14 Partially correct 405 ms 684 KB Partially correct
15 Partially correct 347 ms 684 KB Partially correct
16 Partially correct 299 ms 796 KB Partially correct
17 Partially correct 345 ms 684 KB Partially correct
18 Partially correct 280 ms 1064 KB Partially correct
19 Partially correct 262 ms 1016 KB Partially correct
20 Partially correct 235 ms 684 KB Partially correct
21 Partially correct 28 ms 764 KB Partially correct
22 Partially correct 39 ms 776 KB Partially correct
23 Partially correct 67 ms 684 KB Partially correct
24 Partially correct 3 ms 772 KB Partially correct
25 Partially correct 3 ms 768 KB Partially correct
26 Partially correct 2 ms 768 KB Partially correct
27 Partially correct 2 ms 948 KB Partially correct
28 Partially correct 0 ms 768 KB Partially correct
29 Partially correct 285 ms 684 KB Partially correct
30 Partially correct 291 ms 684 KB Partially correct
31 Partially correct 279 ms 684 KB Partially correct
32 Partially correct 362 ms 684 KB Partially correct
33 Partially correct 338 ms 688 KB Partially correct
34 Partially correct 187 ms 684 KB Partially correct
35 Partially correct 307 ms 1188 KB Partially correct
36 Partially correct 320 ms 792 KB Partially correct
37 Partially correct 324 ms 796 KB Partially correct
38 Partially correct 328 ms 796 KB Partially correct
39 Partially correct 324 ms 940 KB Partially correct
40 Partially correct 316 ms 800 KB Partially correct
41 Partially correct 309 ms 932 KB Partially correct
42 Partially correct 43 ms 768 KB Partially correct
43 Partially correct 64 ms 716 KB Partially correct
44 Partially correct 80 ms 684 KB Partially correct
45 Partially correct 107 ms 716 KB Partially correct
46 Partially correct 224 ms 684 KB Partially correct
47 Partially correct 195 ms 684 KB Partially correct
48 Partially correct 33 ms 768 KB Partially correct
49 Partially correct 27 ms 852 KB Partially correct