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Submission #630442

# Submission time Handle Problem Language Result Execution time Memory
630442 2022-08-16T11:20:10 Z Ooops_sorry Game (APIO22_game) C++17
60 / 100
 4000 ms 42640 KB 
#include<bits/stdc++.h>

using namespace std;

mt19937 rnd(51);

#define ll long long
#define pb push_back
#define ld long double

const int N = 3e5 + 10, INF = 1e9;
int n, k, in[N], out[N];
vector<int> g[N], gr[N];
bool cycle = 0;

void dfs(int v) {
    if (v >= k && out[v] <= in[v]) {
        cycle = 1;
    }
    for (auto to : g[v]) {
        if (in[v] > in[to]) {
            in[to] = in[v];
            dfs(to);
        }
    }
}

void zhfs(int v) {
    if (v >= k && out[v] <= in[v]) {
        cycle = 1;
    }
    for (auto to : gr[v]) {
        if (out[v] < out[to]) {
            out[to] = out[v];
            zhfs(to);
        }
    }
}

int add_teleporter(int u, int v) {
    if (max(u, v) < k) {
        if (u >= v) {
            cycle = 1;
        }
    } else {
        g[u].pb(v);
        gr[v].pb(u);
        if (in[v] < in[u]) {
            in[v] = in[u];
            dfs(v);
        }
        if (out[u] > out[v]) {
            out[u] = out[v];
            zhfs(u);
        }
    }
    return cycle;
}

void init(int n_, int k_) {
    n = n_, k = k_;
    for (int i = 0; i < n; i++) {
        in[i] = -INF, out[i] = INF;
    }
    for (int i = 0; i < k; i++) {
        in[i] = out[i] = i;
        if (i + 1 < k) {
            add_teleporter(i, i + 1);
        }
    }
}

#ifdef LOCAL

signed main() {
#ifdef LOCAL
    freopen("input.txt", "r", stdin);
#endif // LOCAL
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n, m, k;
    cin >> n >> m >> k;
    vector<pair<int,int>> e(m);
    for (int i = 0; i < m; i++) {
        cin >> e[i].first >> e[i].second;
    }
    init(n, k);
    int i;
    for (i = 0; i < m; i++) {
        int res = add_teleporter(e[i].first, e[i].second);
        assert(res == 0 || res == 1);
        if (res == 1) {
            break;
        }
    }
    cout << i << endl;
    return 0;
}

#endif // LOCAL

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14288 KB Output is correct
2 Correct 8 ms 14288 KB Output is correct
3 Correct 7 ms 14288 KB Output is correct
4 Correct 7 ms 14304 KB Output is correct
5 Correct 9 ms 14288 KB Output is correct
6 Correct 8 ms 14288 KB Output is correct
7 Correct 8 ms 14288 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14288 KB Output is correct
2 Correct 8 ms 14288 KB Output is correct
3 Correct 7 ms 14288 KB Output is correct
4 Correct 7 ms 14304 KB Output is correct
5 Correct 9 ms 14288 KB Output is correct
6 Correct 8 ms 14288 KB Output is correct
7 Correct 8 ms 14288 KB Output is correct
8 Correct 7 ms 14288 KB Output is correct
9 Correct 7 ms 14352 KB Output is correct
10 Correct 7 ms 14288 KB Output is correct
11 Correct 9 ms 14292 KB Output is correct
12 Correct 9 ms 14288 KB Output is correct
13 Correct 7 ms 14288 KB Output is correct
14 Correct 7 ms 14288 KB Output is correct
15 Correct 7 ms 14288 KB Output is correct
16 Correct 8 ms 14288 KB Output is correct
17 Correct 9 ms 14372 KB Output is correct
18 Correct 9 ms 14288 KB Output is correct
19 Correct 9 ms 14412 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14288 KB Output is correct
2 Correct 8 ms 14288 KB Output is correct
3 Correct 7 ms 14288 KB Output is correct
4 Correct 7 ms 14304 KB Output is correct
5 Correct 9 ms 14288 KB Output is correct
6 Correct 8 ms 14288 KB Output is correct
7 Correct 8 ms 14288 KB Output is correct
8 Correct 7 ms 14288 KB Output is correct
9 Correct 7 ms 14352 KB Output is correct
10 Correct 7 ms 14288 KB Output is correct
11 Correct 9 ms 14292 KB Output is correct
12 Correct 9 ms 14288 KB Output is correct
13 Correct 7 ms 14288 KB Output is correct
14 Correct 7 ms 14288 KB Output is correct
15 Correct 7 ms 14288 KB Output is correct
16 Correct 8 ms 14288 KB Output is correct
17 Correct 9 ms 14372 KB Output is correct
18 Correct 9 ms 14288 KB Output is correct
19 Correct 9 ms 14412 KB Output is correct
20 Correct 8 ms 14416 KB Output is correct
21 Correct 8 ms 14356 KB Output is correct
22 Correct 9 ms 14368 KB Output is correct
23 Correct 8 ms 14416 KB Output is correct
24 Correct 11 ms 14416 KB Output is correct
25 Correct 10 ms 14416 KB Output is correct
26 Correct 10 ms 14416 KB Output is correct
27 Correct 11 ms 14416 KB Output is correct
28 Correct 9 ms 14440 KB Output is correct
29 Correct 9 ms 14416 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14288 KB Output is correct
2 Correct 8 ms 14288 KB Output is correct
3 Correct 7 ms 14288 KB Output is correct
4 Correct 7 ms 14304 KB Output is correct
5 Correct 9 ms 14288 KB Output is correct
6 Correct 8 ms 14288 KB Output is correct
7 Correct 8 ms 14288 KB Output is correct
8 Correct 7 ms 14288 KB Output is correct
9 Correct 7 ms 14352 KB Output is correct
10 Correct 7 ms 14288 KB Output is correct
11 Correct 9 ms 14292 KB Output is correct
12 Correct 9 ms 14288 KB Output is correct
13 Correct 7 ms 14288 KB Output is correct
14 Correct 7 ms 14288 KB Output is correct
15 Correct 7 ms 14288 KB Output is correct
16 Correct 8 ms 14288 KB Output is correct
17 Correct 9 ms 14372 KB Output is correct
18 Correct 9 ms 14288 KB Output is correct
19 Correct 9 ms 14412 KB Output is correct
20 Correct 8 ms 14416 KB Output is correct
21 Correct 8 ms 14356 KB Output is correct
22 Correct 9 ms 14368 KB Output is correct
23 Correct 8 ms 14416 KB Output is correct
24 Correct 11 ms 14416 KB Output is correct
25 Correct 10 ms 14416 KB Output is correct
26 Correct 10 ms 14416 KB Output is correct
27 Correct 11 ms 14416 KB Output is correct
28 Correct 9 ms 14440 KB Output is correct
29 Correct 9 ms 14416 KB Output is correct
30 Correct 32 ms 15704 KB Output is correct
31 Correct 12 ms 14980 KB Output is correct
32 Correct 25 ms 17096 KB Output is correct
33 Correct 23 ms 16456 KB Output is correct
34 Correct 1073 ms 17832 KB Output is correct
35 Correct 366 ms 17052 KB Output is correct
36 Correct 45 ms 16428 KB Output is correct
37 Correct 43 ms 16412 KB Output is correct
38 Correct 43 ms 16184 KB Output is correct
39 Correct 38 ms 16264 KB Output is correct
40 Correct 884 ms 18012 KB Output is correct
41 Correct 158 ms 16628 KB Output is correct
42 Correct 122 ms 16448 KB Output is correct
43 Correct 54 ms 17888 KB Output is correct
44 Correct 756 ms 17840 KB Output is correct

Subtask #5
0.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 14288 KB Output is correct
2 Correct 8 ms 14288 KB Output is correct
3 Correct 7 ms 14288 KB Output is correct
4 Correct 7 ms 14304 KB Output is correct
5 Correct 9 ms 14288 KB Output is correct
6 Correct 8 ms 14288 KB Output is correct
7 Correct 8 ms 14288 KB Output is correct
8 Correct 7 ms 14288 KB Output is correct
9 Correct 7 ms 14352 KB Output is correct
10 Correct 7 ms 14288 KB Output is correct
11 Correct 9 ms 14292 KB Output is correct
12 Correct 9 ms 14288 KB Output is correct
13 Correct 7 ms 14288 KB Output is correct
14 Correct 7 ms 14288 KB Output is correct
15 Correct 7 ms 14288 KB Output is correct
16 Correct 8 ms 14288 KB Output is correct
17 Correct 9 ms 14372 KB Output is correct
18 Correct 9 ms 14288 KB Output is correct
19 Correct 9 ms 14412 KB Output is correct
20 Correct 8 ms 14416 KB Output is correct
21 Correct 8 ms 14356 KB Output is correct
22 Correct 9 ms 14368 KB Output is correct
23 Correct 8 ms 14416 KB Output is correct
24 Correct 11 ms 14416 KB Output is correct
25 Correct 10 ms 14416 KB Output is correct
26 Correct 10 ms 14416 KB Output is correct
27 Correct 11 ms 14416 KB Output is correct
28 Correct 9 ms 14440 KB Output is correct
29 Correct 9 ms 14416 KB Output is correct
30 Correct 32 ms 15704 KB Output is correct
31 Correct 12 ms 14980 KB Output is correct
32 Correct 25 ms 17096 KB Output is correct
33 Correct 23 ms 16456 KB Output is correct
34 Correct 1073 ms 17832 KB Output is correct
35 Correct 366 ms 17052 KB Output is correct
36 Correct 45 ms 16428 KB Output is correct
37 Correct 43 ms 16412 KB Output is correct
38 Correct 43 ms 16184 KB Output is correct
39 Correct 38 ms 16264 KB Output is correct
40 Correct 884 ms 18012 KB Output is correct
41 Correct 158 ms 16628 KB Output is correct
42 Correct 122 ms 16448 KB Output is correct
43 Correct 54 ms 17888 KB Output is correct
44 Correct 756 ms 17840 KB Output is correct
45 Correct 244 ms 28068 KB Output is correct
46 Correct 16 ms 17104 KB Output is correct
47 Correct 14 ms 17104 KB Output is correct
48 Correct 378 ms 42640 KB Output is correct
49 Correct 269 ms 35520 KB Output is correct
50 Execution timed out 4090 ms 33060 KB Time limit exceeded
51 Halted 0 ms 0 KB -