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Submission #422326

# Submission time Handle Problem Language Result Execution time Memory
422326 2021-06-10T03:10:46 Z timmyfeng Toy Train (IOI17_train) C++17
23 / 100
 289 ms 1740 KB 
#include <bits/stdc++.h>
using namespace std;

const int N = 5000;

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

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

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

    for (int i = 0; i < n; ++i) {
        if (r[i] == 1) {
            fill(visited, visited + n, false);
            visited[i] = true;
            bfs();
            for (auto c : to[i]) {
                win[i] |= visited[c];
            }
        }
    }

    copy(win, win + n, visited);
    bfs();

    return vector<int>(visited, visited + n);
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 47 ms 1224 KB 3rd lines differ - on the 42nd token, expected: '0', found: '1'
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 460 KB 3rd lines differ - on the 2nd token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 56 ms 1632 KB Output is correct
2 Correct 91 ms 1612 KB Output is correct
3 Correct 106 ms 1612 KB Output is correct
4 Correct 278 ms 1740 KB Output is correct
5 Correct 58 ms 1552 KB Output is correct
6 Correct 22 ms 1612 KB Output is correct
7 Correct 289 ms 1568 KB Output is correct
8 Correct 9 ms 1612 KB Output is correct
9 Correct 11 ms 1576 KB Output is correct
10 Correct 12 ms 1484 KB Output is correct
11 Correct 8 ms 1436 KB Output is correct
12 Correct 9 ms 1484 KB Output is correct
13 Correct 13 ms 1572 KB Output is correct
14 Correct 9 ms 1628 KB Output is correct
15 Correct 9 ms 1612 KB Output is correct
16 Correct 10 ms 1612 KB Output is correct
17 Correct 9 ms 1612 KB Output is correct
18 Correct 177 ms 1220 KB Output is correct

Subtask #4
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 88 ms 1376 KB 3rd lines differ - on the 1st token, expected: '1', found: '0'
2 Halted 0 ms 0 KB -

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 1612 KB Output is correct
2 Correct 10 ms 1608 KB Output is correct
3 Correct 10 ms 1572 KB Output is correct
4 Correct 8 ms 1396 KB Output is correct
5 Correct 1 ms 588 KB Output is correct
6 Correct 5 ms 1056 KB Output is correct
7 Correct 6 ms 1228 KB Output is correct
8 Correct 6 ms 1228 KB Output is correct
9 Correct 6 ms 1228 KB Output is correct
10 Correct 2 ms 716 KB Output is correct
11 Correct 6 ms 1184 KB Output is correct

Subtask #6
0 / 51.0

# Verdict Execution time Memory Grader output
1 Incorrect 47 ms 1224 KB 3rd lines differ - on the 42nd token, expected: '0', found: '1'
2 Halted 0 ms 0 KB -