oj.uz

Submission #315697

# Submission time Handle Problem Language Result Execution time Memory
315697 2020-10-23T16:55:48 Z Sorting Stations (IOI20_stations) C++17
100 / 100
 1160 ms 1152 KB 
#include "stations.h"
#include <bits/stdc++.h>

using namespace std;

const int N = 1000 + 3;

vector<int> adj[N];

int dfs(int u, int p, int idx, bool big, vector<int> &labels){
    if(!big) labels[u] = idx++;

    for(int to: adj[u]){
        if(to == p) continue;
        idx = dfs(to, u, idx, !big, labels);
    }
    
    if(big) labels[u] = idx++;
    return idx;
}

vector<int> label(int n, int k, vector<int> u, vector<int> v){
    for(int i = 0; i < n; ++i)
        adj[i].clear();

    for(int i = 0; i < n - 1; ++i){
        adj[u[i]].push_back(v[i]);
        adj[v[i]].push_back(u[i]);
    }

	vector<int> labels(n);
	dfs(0, -1, 0, true, labels);
	return labels;
}

int find_next_station(int s, int t, vector<int> c){
    if(c.size() == 1) return c[0];

    if(s < c[0]){
        if(t < s) return c.back();
        for(int i = 0; i < (int)c.size() - 1; ++i)
            if(t <= c[i])
                return c[i];
        return c.back();
    }
    
    if(t > s || t < c[1]) return c[0];
    for(int i = 2; i < (int)c.size(); ++i)
        if(t < c[i])
            return c[i - 1];
    return c[(int)c.size() - 1];
}
/*
2
5 10
0 1
0 2
1 3
1 4
1
0 4 0
2 1
0 1
1
1 0 0
*/

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 545 ms 1024 KB Output is correct
2 Correct 514 ms 1024 KB Output is correct
3 Correct 1160 ms 880 KB Output is correct
4 Correct 780 ms 872 KB Output is correct
5 Correct 622 ms 872 KB Output is correct
6 Correct 457 ms 1024 KB Output is correct
7 Correct 436 ms 768 KB Output is correct
8 Correct 3 ms 884 KB Output is correct
9 Correct 4 ms 768 KB Output is correct
10 Correct 2 ms 892 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 467 ms 768 KB Output is correct
2 Correct 638 ms 832 KB Output is correct
3 Correct 878 ms 884 KB Output is correct
4 Correct 666 ms 768 KB Output is correct
5 Correct 566 ms 888 KB Output is correct
6 Correct 489 ms 768 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 591 ms 1024 KB Output is correct
2 Correct 467 ms 1024 KB Output is correct
3 Correct 1041 ms 768 KB Output is correct
4 Correct 762 ms 768 KB Output is correct
5 Correct 734 ms 888 KB Output is correct
6 Correct 516 ms 1024 KB Output is correct
7 Correct 466 ms 776 KB Output is correct
8 Correct 3 ms 768 KB Output is correct
9 Correct 5 ms 888 KB Output is correct
10 Correct 1 ms 892 KB Output is correct
11 Correct 594 ms 768 KB Output is correct
12 Correct 458 ms 1116 KB Output is correct
13 Correct 531 ms 1024 KB Output is correct
14 Correct 457 ms 832 KB Output is correct
15 Correct 64 ms 768 KB Output is correct
16 Correct 86 ms 848 KB Output is correct
17 Correct 111 ms 768 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 869 ms 768 KB Output is correct
2 Correct 672 ms 1008 KB Output is correct
3 Correct 582 ms 872 KB Output is correct
4 Correct 3 ms 768 KB Output is correct
5 Correct 5 ms 872 KB Output is correct
6 Correct 2 ms 884 KB Output is correct
7 Correct 585 ms 876 KB Output is correct
8 Correct 913 ms 1032 KB Output is correct
9 Correct 657 ms 896 KB Output is correct
10 Correct 581 ms 880 KB Output is correct
11 Correct 7 ms 888 KB Output is correct
12 Correct 7 ms 768 KB Output is correct
13 Correct 6 ms 768 KB Output is correct
14 Correct 3 ms 768 KB Output is correct
15 Correct 2 ms 876 KB Output is correct
16 Correct 650 ms 768 KB Output is correct
17 Correct 579 ms 880 KB Output is correct
18 Correct 537 ms 880 KB Output is correct
19 Correct 544 ms 872 KB Output is correct
20 Correct 576 ms 876 KB Output is correct

Subtask #5
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 548 ms 1024 KB Output is correct
2 Correct 478 ms 1024 KB Output is correct
3 Correct 881 ms 1044 KB Output is correct
4 Correct 659 ms 876 KB Output is correct
5 Correct 600 ms 768 KB Output is correct
6 Correct 442 ms 1024 KB Output is correct
7 Correct 576 ms 1052 KB Output is correct
8 Correct 3 ms 880 KB Output is correct
9 Correct 5 ms 768 KB Output is correct
10 Correct 2 ms 876 KB Output is correct
11 Correct 441 ms 816 KB Output is correct
12 Correct 524 ms 824 KB Output is correct
13 Correct 880 ms 1032 KB Output is correct
14 Correct 649 ms 768 KB Output is correct
15 Correct 600 ms 768 KB Output is correct
16 Correct 463 ms 768 KB Output is correct
17 Correct 595 ms 768 KB Output is correct
18 Correct 481 ms 884 KB Output is correct
19 Correct 469 ms 1116 KB Output is correct
20 Correct 462 ms 828 KB Output is correct
21 Correct 50 ms 872 KB Output is correct
22 Correct 96 ms 848 KB Output is correct
23 Correct 125 ms 812 KB Output is correct
24 Correct 9 ms 872 KB Output is correct
25 Correct 8 ms 768 KB Output is correct
26 Correct 5 ms 768 KB Output is correct
27 Correct 5 ms 880 KB Output is correct
28 Correct 3 ms 768 KB Output is correct
29 Correct 660 ms 768 KB Output is correct
30 Correct 721 ms 768 KB Output is correct
31 Correct 766 ms 776 KB Output is correct
32 Correct 492 ms 872 KB Output is correct
33 Correct 613 ms 888 KB Output is correct
34 Correct 342 ms 768 KB Output is correct
35 Correct 490 ms 1008 KB Output is correct
36 Correct 490 ms 1024 KB Output is correct
37 Correct 534 ms 768 KB Output is correct
38 Correct 628 ms 1048 KB Output is correct
39 Correct 466 ms 768 KB Output is correct
40 Correct 565 ms 772 KB Output is correct
41 Correct 540 ms 916 KB Output is correct
42 Correct 78 ms 828 KB Output is correct
43 Correct 141 ms 768 KB Output is correct
44 Correct 175 ms 800 KB Output is correct
45 Correct 224 ms 768 KB Output is correct
46 Correct 313 ms 1152 KB Output is correct
47 Correct 314 ms 768 KB Output is correct
48 Correct 65 ms 776 KB Output is correct
49 Correct 65 ms 1028 KB Output is correct