oj.uz

Submission #960952

# Submission time Handle Problem Language Result Execution time Memory
960952 2024-04-11T09:48:57 Z alextodoran Stray Cat (JOI20_stray) C++17
15 / 100
 40 ms 17012 KB 
#include <bits/stdc++.h>
#include "Anthony.h"

using namespace std;

namespace {

const int N_MAX = 20000;
const int pattern[] = {0, 1, 0, 0, 1, 1};

int N, M, A, B;
int edge_u[N_MAX], edge_v[N_MAX];
vector <int> adj[N_MAX];
int other (int i, int u) {
    return (u != edge_v[i] ? edge_v[i] : edge_u[i]);
}

int up_edge[N_MAX];
int color[N_MAX + 1];

void dfs (int u, int chain = -1) {
    if ((int) adj[u].size() == 2 && u != 0) {
        if (chain == -1) {
            chain = 1 - color[up_edge[u]];
        } else {
            chain++;
        }
    } else {
        chain = -1;
    }
    for (int i : adj[u]) {
        if (i != up_edge[u]) {
            int v = other(i, u);
            up_edge[v] = i;
            color[i] = (chain == -1 ? 1 - color[up_edge[u]] : pattern[chain % 6]);
            cout << edge_u[i] << " -- " << edge_v[i] << " (" << color[i] << ")\n";
            dfs(v, chain);
        }
    }
}
void dfs () {
    up_edge[0] = N; color[N] = 1;
    dfs(0);
}

int dist[N_MAX];
void bfs () {
    fill(dist, dist + N, -1);
    up_edge[0] = N; color[N] = 2;
    dist[0] = 0;
    queue <int> q;
    q.push(0);
    while (q.empty() == false) {
        int u = q.front();
        q.pop();
        for (int i : adj[u]) {
            int v = other(i, u);
            if (dist[v] == -1) {
                up_edge[v] = i;
                dist[v] = dist[u] + 1;
                color[i] = (color[up_edge[u]] + 1) % 3;
                q.push(v);
            } else if (dist[u] <= dist[v]){
                color[i] = (color[up_edge[u]] + 1) % 3;
            }
        }
    }
}

}

vector <int> Mark (int _N, int _M, int _A, int _B, vector <int> _U, vector <int> _V) {
    N = _N; M = _M; A = _A; B = _B;
    for (int i = 0; i < M; i++) {
        edge_u[i] = _U[i]; edge_v[i] = _V[i];
        adj[edge_u[i]].push_back(i);
        adj[edge_v[i]].push_back(i);
    }
    if (B > 0) {
        dfs();
    } else {
        bfs();
    }
    vector <int> X(M);
    copy(color, color + M, X.begin());
    return X;
}

#include <bits/stdc++.h>
#include "Catherine.h"

using namespace std;

namespace {
    int A, B;
    vector <int> cols;
    bool passed_test;
}


void Init (int _A, int _B) {
    A = _A; B = _B;
    cols.clear();
    passed_test = false;
}

int Move (vector <int> cnt_col) {
    if (B > 0) {
        int deg = cnt_col[0] + cnt_col[1] + 1;
        // First move
        if (cols.empty() == true) {
            deg--;
            // If leaf, take the only option
            if (deg == 1) {
                passed_test = true;
                cols.push_back((cnt_col[0] > 0 ? 0 : 1));
                return cols.back();
            }
            // If not crossroad, take any option
            if (deg == 2) {
                cols.push_back((cnt_col[0] > 0 ? 0 : 1));
                return cols.back();
            }
            // If crossroad, take the only option with frequency 1
            passed_test = true;
            cols.push_back((cnt_col[0] == 1 ? 0 : 1));
            return cols.back();
        }
        // If leaf, turn back
        if (deg == 1) {
            passed_test = true;
            cols = {cols.back()};
            return -1;
        }
        // If not crossroad, check for pattern
        if (deg == 2) {
            cols.push_back((cnt_col[0] > 0 ? 0 : 1));
            if (passed_test == false && (int) cols.size() == 6) {
                int ok = -1;
                for (int i = 0; i < 6; i++) {
                    if (cols[i] == 0 && cols[(i + 1) % 6] == 0) {
                        ok = (cols[(i + 2) % 6] != cols[(i + 3) % 6]);
                        break;
                    }
                }
                assert(ok != -1);
                passed_test = true;
                if (ok == false) {
                    cols.pop_back();
                    cols = {cols.back()};
                    return -1;
                }
            }
            return cols.back();
        }
        // If crossroad, check for count
        passed_test = true;
        if (cnt_col[0] == 0 || cnt_col[1] == 0) {
            cols = {cols.back()};
            return -1;
        } else {
            cols.push_back(1 - cols.back());
            return cols.back();
        }
    } else {
        if ((cnt_col[0] > 0) + (cnt_col[1] > 0) + (cnt_col[2] > 0) == 1) {
            return (cnt_col[0] > 0 ? 0 : (cnt_col[1] > 0 ? 1 : 2));
        } else {
            return (cnt_col[0] == 0 ? 1 : (cnt_col[1] == 0 ? 2 : 0));
        }
    }
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 15988 KB Output is correct
2 Correct 1 ms 1300 KB Output is correct
3 Correct 26 ms 15232 KB Output is correct
4 Correct 33 ms 17012 KB Output is correct
5 Correct 34 ms 16888 KB Output is correct
6 Correct 28 ms 15728 KB Output is correct
7 Correct 27 ms 15748 KB Output is correct
8 Correct 32 ms 16500 KB Output is correct
9 Correct 36 ms 16480 KB Output is correct

Subtask #2
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 15988 KB Output is correct
2 Correct 1 ms 1300 KB Output is correct
3 Correct 26 ms 15232 KB Output is correct
4 Correct 33 ms 17012 KB Output is correct
5 Correct 34 ms 16888 KB Output is correct
6 Correct 28 ms 15728 KB Output is correct
7 Correct 27 ms 15748 KB Output is correct
8 Correct 32 ms 16500 KB Output is correct
9 Correct 36 ms 16480 KB Output is correct
10 Correct 27 ms 13648 KB Output is correct
11 Correct 28 ms 13648 KB Output is correct
12 Correct 27 ms 13568 KB Output is correct
13 Correct 30 ms 13676 KB Output is correct
14 Correct 26 ms 13932 KB Output is correct
15 Correct 32 ms 14184 KB Output is correct
16 Correct 31 ms 16512 KB Output is correct

Subtask #3
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 13428 KB Output is correct
2 Correct 1 ms 1308 KB Output is correct
3 Correct 23 ms 13008 KB Output is correct
4 Correct 33 ms 14792 KB Output is correct
5 Correct 40 ms 14784 KB Output is correct
6 Correct 30 ms 13432 KB Output is correct
7 Correct 26 ms 13428 KB Output is correct
8 Correct 28 ms 14120 KB Output is correct
9 Correct 31 ms 14200 KB Output is correct
10 Correct 28 ms 13948 KB Output is correct
11 Correct 27 ms 13980 KB Output is correct
12 Correct 27 ms 13932 KB Output is correct
13 Correct 26 ms 13772 KB Output is correct
14 Correct 30 ms 14320 KB Output is correct
15 Correct 31 ms 14164 KB Output is correct

Subtask #4
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 13428 KB Output is correct
2 Correct 1 ms 1308 KB Output is correct
3 Correct 23 ms 13008 KB Output is correct
4 Correct 33 ms 14792 KB Output is correct
5 Correct 40 ms 14784 KB Output is correct
6 Correct 30 ms 13432 KB Output is correct
7 Correct 26 ms 13428 KB Output is correct
8 Correct 28 ms 14120 KB Output is correct
9 Correct 31 ms 14200 KB Output is correct
10 Correct 28 ms 13948 KB Output is correct
11 Correct 27 ms 13980 KB Output is correct
12 Correct 27 ms 13932 KB Output is correct
13 Correct 26 ms 13772 KB Output is correct
14 Correct 30 ms 14320 KB Output is correct
15 Correct 31 ms 14164 KB Output is correct
16 Correct 25 ms 11968 KB Output is correct
17 Correct 24 ms 11952 KB Output is correct
18 Correct 25 ms 11648 KB Output is correct
19 Correct 24 ms 11632 KB Output is correct
20 Correct 26 ms 12252 KB Output is correct
21 Correct 26 ms 12152 KB Output is correct
22 Correct 28 ms 14468 KB Output is correct
23 Correct 25 ms 11888 KB Output is correct
24 Correct 25 ms 11884 KB Output is correct

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 1316 KB Program didn't exit properly, or you printed something to stdout.
2 Halted 0 ms 0 KB -

Subtask #6
0 / 71.0

# Verdict Execution time Memory Grader output
1 Incorrect 13 ms 4060 KB Program didn't exit properly, or you printed something to stdout.
2 Halted 0 ms 0 KB -

Subtask #7
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 14 ms 4064 KB Program didn't exit properly, or you printed something to stdout.
2 Halted 0 ms 0 KB -