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답안 #423354

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
423354 2021-06-11T02:42:49 Z timmyfeng 장난감 기차 (IOI17_train) C++17
100 / 100
 605 ms 1648 KB 
#include <bits/stdc++.h>
using namespace std;

const int N = 5000;

vector<int> to[N], from[N], a;
int degree[N], n, m;

void bfs(vector<int> &visited, int player) {
    queue<int> que;
    for (int i = 0; i < n; ++i) {
        degree[i] = 0;
        if (visited[i] == 1) {
            que.push(i);
        }
    }

    while (!que.empty()) {
        int u = que.front();
        que.pop();
        for (auto c : from[u]) {
            if (visited[c] == 0) {
                if (a[c] == player || ++degree[c] == (int) to[c].size()) {
                    visited[c] = 1;
                    que.push(c);
                }
            }
        }
    }
}

vector<int> who_wins(vector<int> a, vector<int> r, vector<int> u, vector<int> v) {
    n = a.size(), m = u.size(), ::a = a;

    for (int i = 0; i < m; ++i) {
        to[u[i]].push_back(v[i]);
        from[v[i]].push_back(u[i]);
    }

    bool loop = true;
    while (loop) {
        loop = false;
        vector<int> visited = r;
        bfs(visited, 1);
        for (auto &i : visited) {
            i = 1 - i;
        }

        bfs(visited, 0);
        for (int i = 0; i < n; ++i) {
            if (visited[i] == 1 && r[i] == 1) {
                loop = true;
                r[i] = 0;
            }
        }
    }

    vector<int> ans = r;
    bfs(ans, 1);
    return ans;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 1100 KB Output is correct
2 Correct 6 ms 1096 KB Output is correct
3 Correct 6 ms 1100 KB Output is correct
4 Correct 6 ms 1100 KB Output is correct
5 Correct 5 ms 1100 KB Output is correct
6 Correct 6 ms 972 KB Output is correct
7 Correct 5 ms 1100 KB Output is correct
8 Correct 5 ms 972 KB Output is correct
9 Correct 5 ms 972 KB Output is correct
10 Correct 5 ms 972 KB Output is correct
11 Correct 4 ms 972 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 460 KB Output is correct
2 Correct 1 ms 460 KB Output is correct
3 Correct 1 ms 460 KB Output is correct
4 Correct 1 ms 460 KB Output is correct
5 Correct 1 ms 460 KB Output is correct
6 Correct 1 ms 460 KB Output is correct
7 Correct 1 ms 460 KB Output is correct
8 Correct 1 ms 460 KB Output is correct
9 Correct 1 ms 460 KB Output is correct
10 Correct 1 ms 460 KB Output is correct
11 Correct 1 ms 460 KB Output is correct
12 Correct 1 ms 460 KB Output is correct
13 Correct 1 ms 460 KB Output is correct
14 Correct 1 ms 460 KB Output is correct
15 Correct 1 ms 460 KB Output is correct
16 Correct 1 ms 460 KB Output is correct
17 Correct 1 ms 460 KB Output is correct
18 Correct 1 ms 460 KB Output is correct
19 Correct 1 ms 460 KB Output is correct
20 Correct 1 ms 460 KB Output is correct

Subtask #3
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 82 ms 1436 KB Output is correct
2 Correct 157 ms 1432 KB Output is correct
3 Correct 227 ms 1552 KB Output is correct
4 Correct 10 ms 1372 KB Output is correct
5 Correct 9 ms 1356 KB Output is correct
6 Correct 10 ms 1356 KB Output is correct
7 Correct 9 ms 1368 KB Output is correct
8 Correct 8 ms 1356 KB Output is correct
9 Correct 8 ms 1352 KB Output is correct
10 Correct 8 ms 1356 KB Output is correct
11 Correct 9 ms 1356 KB Output is correct
12 Correct 8 ms 1228 KB Output is correct
13 Correct 9 ms 1356 KB Output is correct
14 Correct 9 ms 1356 KB Output is correct
15 Correct 9 ms 1356 KB Output is correct
16 Correct 9 ms 1356 KB Output is correct
17 Correct 9 ms 1356 KB Output is correct
18 Correct 358 ms 1220 KB Output is correct

Subtask #4
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 1196 KB Output is correct
2 Correct 8 ms 1212 KB Output is correct
3 Correct 9 ms 1352 KB Output is correct
4 Correct 9 ms 1412 KB Output is correct
5 Correct 9 ms 1400 KB Output is correct
6 Correct 9 ms 1356 KB Output is correct
7 Correct 9 ms 1380 KB Output is correct
8 Correct 8 ms 1356 KB Output is correct
9 Correct 8 ms 1228 KB Output is correct
10 Correct 11 ms 1352 KB Output is correct
11 Correct 9 ms 1364 KB Output is correct
12 Correct 9 ms 1316 KB Output is correct
13 Correct 9 ms 1356 KB Output is correct
14 Correct 8 ms 1228 KB Output is correct

Subtask #5
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 1356 KB Output is correct
2 Correct 9 ms 1356 KB Output is correct
3 Correct 9 ms 1368 KB Output is correct
4 Correct 9 ms 1512 KB Output is correct
5 Correct 1 ms 588 KB Output is correct
6 Correct 5 ms 1100 KB Output is correct
7 Correct 6 ms 1228 KB Output is correct
8 Correct 7 ms 1284 KB Output is correct
9 Correct 6 ms 1216 KB Output is correct
10 Correct 2 ms 716 KB Output is correct
11 Correct 6 ms 1100 KB Output is correct

Subtask #6
51.0 / 51.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 1100 KB Output is correct
2 Correct 6 ms 1096 KB Output is correct
3 Correct 6 ms 1100 KB Output is correct
4 Correct 6 ms 1100 KB Output is correct
5 Correct 5 ms 1100 KB Output is correct
6 Correct 6 ms 972 KB Output is correct
7 Correct 5 ms 1100 KB Output is correct
8 Correct 5 ms 972 KB Output is correct
9 Correct 5 ms 972 KB Output is correct
10 Correct 5 ms 972 KB Output is correct
11 Correct 4 ms 972 KB Output is correct
12 Correct 1 ms 460 KB Output is correct
13 Correct 1 ms 460 KB Output is correct
14 Correct 1 ms 460 KB Output is correct
15 Correct 1 ms 460 KB Output is correct
16 Correct 1 ms 460 KB Output is correct
17 Correct 1 ms 460 KB Output is correct
18 Correct 1 ms 460 KB Output is correct
19 Correct 1 ms 460 KB Output is correct
20 Correct 1 ms 460 KB Output is correct
21 Correct 1 ms 460 KB Output is correct
22 Correct 1 ms 460 KB Output is correct
23 Correct 1 ms 460 KB Output is correct
24 Correct 1 ms 460 KB Output is correct
25 Correct 1 ms 460 KB Output is correct
26 Correct 1 ms 460 KB Output is correct
27 Correct 1 ms 460 KB Output is correct
28 Correct 1 ms 460 KB Output is correct
29 Correct 1 ms 460 KB Output is correct
30 Correct 1 ms 460 KB Output is correct
31 Correct 1 ms 460 KB Output is correct
32 Correct 82 ms 1436 KB Output is correct
33 Correct 157 ms 1432 KB Output is correct
34 Correct 227 ms 1552 KB Output is correct
35 Correct 10 ms 1372 KB Output is correct
36 Correct 9 ms 1356 KB Output is correct
37 Correct 10 ms 1356 KB Output is correct
38 Correct 9 ms 1368 KB Output is correct
39 Correct 8 ms 1356 KB Output is correct
40 Correct 8 ms 1352 KB Output is correct
41 Correct 8 ms 1356 KB Output is correct
42 Correct 9 ms 1356 KB Output is correct
43 Correct 8 ms 1228 KB Output is correct
44 Correct 9 ms 1356 KB Output is correct
45 Correct 9 ms 1356 KB Output is correct
46 Correct 9 ms 1356 KB Output is correct
47 Correct 9 ms 1356 KB Output is correct
48 Correct 9 ms 1356 KB Output is correct
49 Correct 358 ms 1220 KB Output is correct
50 Correct 10 ms 1196 KB Output is correct
51 Correct 8 ms 1212 KB Output is correct
52 Correct 9 ms 1352 KB Output is correct
53 Correct 9 ms 1412 KB Output is correct
54 Correct 9 ms 1400 KB Output is correct
55 Correct 9 ms 1356 KB Output is correct
56 Correct 9 ms 1380 KB Output is correct
57 Correct 8 ms 1356 KB Output is correct
58 Correct 8 ms 1228 KB Output is correct
59 Correct 11 ms 1352 KB Output is correct
60 Correct 9 ms 1364 KB Output is correct
61 Correct 9 ms 1316 KB Output is correct
62 Correct 9 ms 1356 KB Output is correct
63 Correct 8 ms 1228 KB Output is correct
64 Correct 9 ms 1356 KB Output is correct
65 Correct 9 ms 1356 KB Output is correct
66 Correct 9 ms 1368 KB Output is correct
67 Correct 9 ms 1512 KB Output is correct
68 Correct 1 ms 588 KB Output is correct
69 Correct 5 ms 1100 KB Output is correct
70 Correct 6 ms 1228 KB Output is correct
71 Correct 7 ms 1284 KB Output is correct
72 Correct 6 ms 1216 KB Output is correct
73 Correct 2 ms 716 KB Output is correct
74 Correct 6 ms 1100 KB Output is correct
75 Correct 149 ms 1612 KB Output is correct
76 Correct 210 ms 1648 KB Output is correct
77 Correct 294 ms 1612 KB Output is correct
78 Correct 294 ms 1628 KB Output is correct
79 Correct 295 ms 1640 KB Output is correct
80 Correct 10 ms 1612 KB Output is correct
81 Correct 9 ms 1544 KB Output is correct
82 Correct 10 ms 1612 KB Output is correct
83 Correct 10 ms 1628 KB Output is correct
84 Correct 10 ms 1628 KB Output is correct
85 Correct 10 ms 1612 KB Output is correct
86 Correct 10 ms 1628 KB Output is correct
87 Correct 9 ms 1612 KB Output is correct
88 Correct 12 ms 1624 KB Output is correct
89 Correct 10 ms 1612 KB Output is correct
90 Correct 16 ms 1612 KB Output is correct
91 Correct 15 ms 1612 KB Output is correct
92 Correct 25 ms 1620 KB Output is correct
93 Correct 27 ms 1600 KB Output is correct
94 Correct 26 ms 1612 KB Output is correct
95 Correct 27 ms 1508 KB Output is correct
96 Correct 79 ms 1500 KB Output is correct
97 Correct 400 ms 1612 KB Output is correct
98 Correct 564 ms 1568 KB Output is correct
99 Correct 605 ms 1560 KB Output is correct
100 Correct 350 ms 1252 KB Output is correct