oj.uz

Submission #838507

# Submission time Handle Problem Language Result Execution time Memory
838507 2023-08-27T10:04:54 Z finn__ Game (APIO22_game) C++17
30 / 100
 4000 ms 2416 KB 
#include <bits/stdc++.h>
#include "game.h"
using namespace std;

constexpr size_t N = 30000;

int n, k;
vector<int> g[N], rg[N], postorder;
bitset<N> visited;

void init(int n_, int k_)
{
    n = n_, k = k_;
    for (int i = 0; i + 1 < k; ++i)
        g[i].push_back(i + 1), rg[i + 1].push_back(i);
}

void dfs_postorder(int u)
{
    visited[u] = 1;
    for (int const &v : g[u])
        if (!visited[v])
            dfs_postorder(v);
    postorder.push_back(u);
}

bool find_scc(int u, int &scc_size)
{
    visited[u] = 1;
    ++scc_size;
    if (u < k && scc_size > 1)
        return 1;
    for (int const &v : rg[u])
        if (!visited[v])
        {
            if (u < k)
                return 1;
            if (find_scc(v, scc_size))
                return 1;
        }
    return 0;
}

int add_teleporter(int u, int v)
{
    if (u < k && u == v)
        return 1;
    g[u].push_back(v);
    rg[v].push_back(u);

    visited.reset();
    postorder.clear();
    for (int i = 0; i < n; ++i)
        if (!visited[i])
            dfs_postorder(i);
    visited.reset();
    reverse(postorder.begin(), postorder.end());
    for (int const &i : postorder)
        if (!visited[i])
        {
            int scc_size = 0;
            if (find_scc(i, scc_size))
                return 1;
        }
    return 0;
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1616 KB Output is correct
2 Correct 1 ms 1616 KB Output is correct
3 Correct 2 ms 1616 KB Output is correct
4 Correct 1 ms 1616 KB Output is correct
5 Correct 1 ms 1616 KB Output is correct
6 Correct 2 ms 1616 KB Output is correct
7 Correct 1 ms 1616 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1616 KB Output is correct
2 Correct 1 ms 1616 KB Output is correct
3 Correct 2 ms 1616 KB Output is correct
4 Correct 1 ms 1616 KB Output is correct
5 Correct 1 ms 1616 KB Output is correct
6 Correct 2 ms 1616 KB Output is correct
7 Correct 1 ms 1616 KB Output is correct
8 Correct 2 ms 1616 KB Output is correct
9 Correct 1 ms 1616 KB Output is correct
10 Correct 1 ms 1648 KB Output is correct
11 Correct 1 ms 1616 KB Output is correct
12 Correct 2 ms 1616 KB Output is correct
13 Correct 1 ms 1740 KB Output is correct
14 Correct 1 ms 1616 KB Output is correct
15 Correct 1 ms 1616 KB Output is correct
16 Correct 2 ms 1740 KB Output is correct
17 Correct 1 ms 1616 KB Output is correct
18 Correct 2 ms 1616 KB Output is correct
19 Correct 2 ms 1668 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1616 KB Output is correct
2 Correct 1 ms 1616 KB Output is correct
3 Correct 2 ms 1616 KB Output is correct
4 Correct 1 ms 1616 KB Output is correct
5 Correct 1 ms 1616 KB Output is correct
6 Correct 2 ms 1616 KB Output is correct
7 Correct 1 ms 1616 KB Output is correct
8 Correct 2 ms 1616 KB Output is correct
9 Correct 1 ms 1616 KB Output is correct
10 Correct 1 ms 1648 KB Output is correct
11 Correct 1 ms 1616 KB Output is correct
12 Correct 2 ms 1616 KB Output is correct
13 Correct 1 ms 1740 KB Output is correct
14 Correct 1 ms 1616 KB Output is correct
15 Correct 1 ms 1616 KB Output is correct
16 Correct 2 ms 1740 KB Output is correct
17 Correct 1 ms 1616 KB Output is correct
18 Correct 2 ms 1616 KB Output is correct
19 Correct 2 ms 1668 KB Output is correct
20 Correct 12 ms 1752 KB Output is correct
21 Correct 2 ms 1616 KB Output is correct
22 Correct 12 ms 1784 KB Output is correct
23 Correct 15 ms 1772 KB Output is correct
24 Correct 16 ms 1744 KB Output is correct
25 Correct 80 ms 1804 KB Output is correct
26 Correct 91 ms 1788 KB Output is correct
27 Correct 72 ms 1812 KB Output is correct
28 Correct 37 ms 1784 KB Output is correct
29 Correct 69 ms 1792 KB Output is correct

Subtask #4
0.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1616 KB Output is correct
2 Correct 1 ms 1616 KB Output is correct
3 Correct 2 ms 1616 KB Output is correct
4 Correct 1 ms 1616 KB Output is correct
5 Correct 1 ms 1616 KB Output is correct
6 Correct 2 ms 1616 KB Output is correct
7 Correct 1 ms 1616 KB Output is correct
8 Correct 2 ms 1616 KB Output is correct
9 Correct 1 ms 1616 KB Output is correct
10 Correct 1 ms 1648 KB Output is correct
11 Correct 1 ms 1616 KB Output is correct
12 Correct 2 ms 1616 KB Output is correct
13 Correct 1 ms 1740 KB Output is correct
14 Correct 1 ms 1616 KB Output is correct
15 Correct 1 ms 1616 KB Output is correct
16 Correct 2 ms 1740 KB Output is correct
17 Correct 1 ms 1616 KB Output is correct
18 Correct 2 ms 1616 KB Output is correct
19 Correct 2 ms 1668 KB Output is correct
20 Correct 12 ms 1752 KB Output is correct
21 Correct 2 ms 1616 KB Output is correct
22 Correct 12 ms 1784 KB Output is correct
23 Correct 15 ms 1772 KB Output is correct
24 Correct 16 ms 1744 KB Output is correct
25 Correct 80 ms 1804 KB Output is correct
26 Correct 91 ms 1788 KB Output is correct
27 Correct 72 ms 1812 KB Output is correct
28 Correct 37 ms 1784 KB Output is correct
29 Correct 69 ms 1792 KB Output is correct
30 Execution timed out 4027 ms 2416 KB Time limit exceeded
31 Halted 0 ms 0 KB -

Subtask #5
0.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1616 KB Output is correct
2 Correct 1 ms 1616 KB Output is correct
3 Correct 2 ms 1616 KB Output is correct
4 Correct 1 ms 1616 KB Output is correct
5 Correct 1 ms 1616 KB Output is correct
6 Correct 2 ms 1616 KB Output is correct
7 Correct 1 ms 1616 KB Output is correct
8 Correct 2 ms 1616 KB Output is correct
9 Correct 1 ms 1616 KB Output is correct
10 Correct 1 ms 1648 KB Output is correct
11 Correct 1 ms 1616 KB Output is correct
12 Correct 2 ms 1616 KB Output is correct
13 Correct 1 ms 1740 KB Output is correct
14 Correct 1 ms 1616 KB Output is correct
15 Correct 1 ms 1616 KB Output is correct
16 Correct 2 ms 1740 KB Output is correct
17 Correct 1 ms 1616 KB Output is correct
18 Correct 2 ms 1616 KB Output is correct
19 Correct 2 ms 1668 KB Output is correct
20 Correct 12 ms 1752 KB Output is correct
21 Correct 2 ms 1616 KB Output is correct
22 Correct 12 ms 1784 KB Output is correct
23 Correct 15 ms 1772 KB Output is correct
24 Correct 16 ms 1744 KB Output is correct
25 Correct 80 ms 1804 KB Output is correct
26 Correct 91 ms 1788 KB Output is correct
27 Correct 72 ms 1812 KB Output is correct
28 Correct 37 ms 1784 KB Output is correct
29 Correct 69 ms 1792 KB Output is correct
30 Execution timed out 4027 ms 2416 KB Time limit exceeded
31 Halted 0 ms 0 KB -