답안 #781061

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
781061	2023-07-12T16:45:44 Z	kamelfanger83	기지국 (IOI20_stations)	C++14	52.3205 / 100	762 ms	708 KB

stations

#include "stations.h"
#include <vector>
#include <cassert>

#define int long long

using namespace std;

vector<pair<int, int>> prepost;
vector<vector<int>> cons;
int C = 0;

void dfs(int i, int from){
    prepost[i].first = C++;
    for (int c : cons[i]){
        if (c == from) continue;
        dfs(c, i);
    }
    prepost[i].second = C - 1;
}

vector<signed> label(signed n, signed k, vector<signed> u, vector<signed> v) {
    vector<signed> labels(n);
    cons.clear();
    cons.resize(n);
    for (int i = 0; i < n - 1; ++i) {
        cons[u[i]].push_back(v[i]);
        cons[v[i]].push_back(u[i]);
    }

    prepost.clear();
    prepost.resize(n);
    C = 0;
    dfs(0, -1);

    for (int i = 0; i < n; ++i) {
        labels[i] = prepost[i].first * 1000 + prepost[i].second;
    }

    return labels;
}

signed find_next_station(signed s, signed t, vector<signed> c) {
    int spre = s / 1000, spost = s % 1000;
    int tpre = t / 1000, tpost = t % 1000;
    bool isdes = spre < tpre && tpost <= spost;
    for (int i = 0; i < c.size(); ++i) {
        int cpre = c[i] / 1000, cpost = c[i] % 1000;
        if (cpre < spre && spost <= cpost){
            if (!isdes) return c[i];
        }
        else if (cpre <= tpre && tpost <= cpost){
            assert(isdes);
            return c[i];
        }
    }
    //assert(false);
    //return 0;
}

Compilation message

stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:47:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |     for (int i = 0; i < c.size(); ++i) {
      |                     ~~^~~~~~~~~~
stations.cpp:59:1: warning: control reaches end of non-void function [-Wreturn-type]
   59 | }
      | ^

Subtask #1

0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	2 ms	336 KB	Invalid labels (values out of range). scenario=0, k=1000, vertex=1, label=6009
2	Halted	0 ms	0 KB	-

Subtask #2

0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	4 ms	412 KB	Invalid labels (values out of range). scenario=0, k=1000, vertex=1, label=1511
2	Halted	0 ms	0 KB	-

Subtask #3

16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	398 ms	672 KB	Output is correct
2	Correct	370 ms	620 KB	Output is correct
3	Correct	657 ms	472 KB	Output is correct
4	Correct	560 ms	416 KB	Output is correct
5	Correct	542 ms	492 KB	Output is correct
6	Correct	359 ms	544 KB	Output is correct
7	Correct	319 ms	544 KB	Output is correct
8	Correct	1 ms	500 KB	Output is correct
9	Correct	3 ms	492 KB	Output is correct
10	Correct	1 ms	504 KB	Output is correct
11	Correct	524 ms	492 KB	Output is correct
12	Correct	402 ms	604 KB	Output is correct
13	Correct	399 ms	544 KB	Output is correct
14	Correct	333 ms	548 KB	Output is correct
15	Correct	49 ms	496 KB	Output is correct
16	Correct	60 ms	620 KB	Output is correct
17	Correct	75 ms	520 KB	Output is correct

Subtask #4

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	762 ms	420 KB	Output is correct
2	Correct	576 ms	416 KB	Output is correct
3	Correct	495 ms	416 KB	Output is correct
4	Correct	1 ms	492 KB	Output is correct
5	Correct	3 ms	504 KB	Output is correct
6	Correct	1 ms	500 KB	Output is correct
7	Correct	533 ms	416 KB	Output is correct
8	Correct	679 ms	420 KB	Output is correct
9	Correct	600 ms	420 KB	Output is correct
10	Correct	502 ms	492 KB	Output is correct
11	Correct	4 ms	500 KB	Output is correct
12	Correct	4 ms	500 KB	Output is correct
13	Correct	2 ms	496 KB	Output is correct
14	Correct	1 ms	492 KB	Output is correct
15	Correct	1 ms	500 KB	Output is correct
16	Correct	471 ms	492 KB	Output is correct
17	Correct	492 ms	488 KB	Output is correct
18	Correct	460 ms	416 KB	Output is correct
19	Correct	378 ms	416 KB	Output is correct
20	Correct	409 ms	492 KB	Output is correct

Subtask #5

26.3205 / 61.0

#	결과	실행 시간	메모리	Grader output
1	Partially correct	463 ms	676 KB	Partially correct
2	Partially correct	317 ms	552 KB	Partially correct
3	Partially correct	746 ms	492 KB	Partially correct
4	Partially correct	624 ms	416 KB	Partially correct
5	Partially correct	532 ms	492 KB	Partially correct
6	Partially correct	394 ms	616 KB	Partially correct
7	Partially correct	329 ms	548 KB	Partially correct
8	Partially correct	1 ms	500 KB	Partially correct
9	Partially correct	2 ms	504 KB	Partially correct
10	Partially correct	0 ms	488 KB	Partially correct
11	Partially correct	421 ms	648 KB	Partially correct
12	Partially correct	471 ms	544 KB	Partially correct
13	Partially correct	635 ms	416 KB	Partially correct
14	Partially correct	450 ms	420 KB	Partially correct
15	Partially correct	469 ms	496 KB	Partially correct
16	Partially correct	378 ms	544 KB	Partially correct
17	Partially correct	539 ms	416 KB	Partially correct
18	Partially correct	334 ms	616 KB	Partially correct
19	Partially correct	421 ms	684 KB	Partially correct
20	Partially correct	297 ms	544 KB	Partially correct
21	Partially correct	41 ms	448 KB	Partially correct
22	Partially correct	42 ms	620 KB	Partially correct
23	Partially correct	91 ms	620 KB	Partially correct
24	Partially correct	3 ms	496 KB	Partially correct
25	Partially correct	4 ms	492 KB	Partially correct
26	Partially correct	2 ms	492 KB	Partially correct
27	Partially correct	1 ms	492 KB	Partially correct
28	Partially correct	1 ms	492 KB	Partially correct
29	Partially correct	347 ms	492 KB	Partially correct
30	Partially correct	378 ms	496 KB	Partially correct
31	Partially correct	398 ms	544 KB	Partially correct
32	Partially correct	442 ms	420 KB	Partially correct
33	Partially correct	356 ms	492 KB	Partially correct
34	Partially correct	286 ms	548 KB	Partially correct
35	Partially correct	289 ms	620 KB	Partially correct
36	Partially correct	314 ms	692 KB	Partially correct
37	Partially correct	353 ms	692 KB	Partially correct
38	Partially correct	351 ms	612 KB	Partially correct
39	Partially correct	412 ms	636 KB	Partially correct
40	Partially correct	322 ms	692 KB	Partially correct
41	Partially correct	376 ms	624 KB	Partially correct
42	Partially correct	50 ms	620 KB	Partially correct
43	Partially correct	69 ms	492 KB	Partially correct
44	Partially correct	92 ms	548 KB	Partially correct
45	Partially correct	131 ms	544 KB	Partially correct
46	Partially correct	292 ms	544 KB	Partially correct
47	Partially correct	227 ms	544 KB	Partially correct
48	Partially correct	47 ms	600 KB	Partially correct
49	Partially correct	48 ms	708 KB	Partially correct