oj.uz

Submission #961669

# Submission time Handle Problem Language Result Execution time Memory
961669 2024-04-12T09:58:44 Z alextodoran Stray Cat (JOI20_stray) C++17
100 / 100
 40 ms 17312 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];

int chain[N_MAX];

void dfs () {
    fill(up_edge, up_edge + N, -1);
    up_edge[0] = M; color[M] = 1 - N % 2;
    chain[0] = -1;
    queue <int> q;
    q.push(0);
    while (q.empty() == false) {
        int u = q.front();
        q.pop();
        if ((int) adj[u].size() == 2 && u != 0) {
            if (chain[u] == -1) {
                chain[u] = (1 - color[up_edge[u]]);
            } else {
                chain[u]++;
            }
        } else {
            chain[u] = -1;
        }
        for (int i : adj[u]) {
            int v = other(i, u);
            if (up_edge[v] == -1) {
                up_edge[v] = i;
                color[i] = (chain[u] == -1 ? 1 - color[up_edge[u]] : pattern[chain[u] % 6]);
                chain[v] = chain[u];
                q.push(v);
            }
        }
    }
}

int dist[N_MAX];
void bfs () {
    fill(dist, dist + N, -1);
    up_edge[0] = M; color[M] = 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());
    for (int u = 0; u < N; u++) {
        adj[u].clear();
        up_edge[u] = 0;
    }
    return X;
}

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

using namespace std;

namespace {
    const int pattern[] = {0, 1, 0, 0, 1, 1};
    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) {
                if (cnt_col[0] == cnt_col[1]) {
                    cols.push_back(1);
                    cols.push_back(0);
                } else if (cnt_col[0] > 0) {
                    cols.push_back(0);
                    cols.push_back(0);
                } else {
                    cols.push_back(1);
                    cols.push_back(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() == 5) {
                int down = false;
                for (int i = 0; i < 6; i++) {
                    down = true;
                    for (int j = 0; j < 5; j++) {
                        if (cols[j] != pattern[(i + j) % 6]) {
                            down = false;
                            break;
                        }
                    }
                    if (down == true) {
                        break;
                    }
                }
                passed_test = true;
                if (down == true) {
                    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 30 ms 16236 KB Output is correct
2 Correct 1 ms 1300 KB Output is correct
3 Correct 26 ms 15680 KB Output is correct
4 Correct 35 ms 17312 KB Output is correct
5 Correct 34 ms 17232 KB Output is correct
6 Correct 26 ms 16196 KB Output is correct
7 Correct 28 ms 15988 KB Output is correct
8 Correct 32 ms 16888 KB Output is correct
9 Correct 35 ms 16620 KB Output is correct

Subtask #2
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 16236 KB Output is correct
2 Correct 1 ms 1300 KB Output is correct
3 Correct 26 ms 15680 KB Output is correct
4 Correct 35 ms 17312 KB Output is correct
5 Correct 34 ms 17232 KB Output is correct
6 Correct 26 ms 16196 KB Output is correct
7 Correct 28 ms 15988 KB Output is correct
8 Correct 32 ms 16888 KB Output is correct
9 Correct 35 ms 16620 KB Output is correct
10 Correct 31 ms 14140 KB Output is correct
11 Correct 25 ms 14152 KB Output is correct
12 Correct 35 ms 13928 KB Output is correct
13 Correct 25 ms 14148 KB Output is correct
14 Correct 27 ms 14404 KB Output is correct
15 Correct 34 ms 14664 KB Output is correct
16 Correct 30 ms 16684 KB Output is correct

Subtask #3
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 13908 KB Output is correct
2 Correct 1 ms 1312 KB Output is correct
3 Correct 25 ms 13520 KB Output is correct
4 Correct 32 ms 15184 KB Output is correct
5 Correct 32 ms 15184 KB Output is correct
6 Correct 26 ms 13864 KB Output is correct
7 Correct 31 ms 13808 KB Output is correct
8 Correct 31 ms 14492 KB Output is correct
9 Correct 34 ms 14432 KB Output is correct
10 Correct 34 ms 14216 KB Output is correct
11 Correct 28 ms 14164 KB Output is correct
12 Correct 28 ms 14156 KB Output is correct
13 Correct 34 ms 14092 KB Output is correct
14 Correct 30 ms 14520 KB Output is correct
15 Correct 30 ms 14356 KB Output is correct

Subtask #4
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 13908 KB Output is correct
2 Correct 1 ms 1312 KB Output is correct
3 Correct 25 ms 13520 KB Output is correct
4 Correct 32 ms 15184 KB Output is correct
5 Correct 32 ms 15184 KB Output is correct
6 Correct 26 ms 13864 KB Output is correct
7 Correct 31 ms 13808 KB Output is correct
8 Correct 31 ms 14492 KB Output is correct
9 Correct 34 ms 14432 KB Output is correct
10 Correct 34 ms 14216 KB Output is correct
11 Correct 28 ms 14164 KB Output is correct
12 Correct 28 ms 14156 KB Output is correct
13 Correct 34 ms 14092 KB Output is correct
14 Correct 30 ms 14520 KB Output is correct
15 Correct 30 ms 14356 KB Output is correct
16 Correct 23 ms 12100 KB Output is correct
17 Correct 24 ms 12172 KB Output is correct
18 Correct 26 ms 12120 KB Output is correct
19 Correct 25 ms 12096 KB Output is correct
20 Correct 26 ms 12812 KB Output is correct
21 Correct 26 ms 12584 KB Output is correct
22 Correct 30 ms 14488 KB Output is correct
23 Correct 25 ms 12356 KB Output is correct
24 Correct 26 ms 12420 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1564 KB Output is correct
2 Correct 1 ms 1300 KB Output is correct
3 Correct 1 ms 1564 KB Output is correct
4 Correct 2 ms 1564 KB Output is correct
5 Correct 2 ms 1568 KB Output is correct
6 Correct 2 ms 1564 KB Output is correct
7 Correct 2 ms 1568 KB Output is correct
8 Correct 2 ms 1572 KB Output is correct
9 Correct 2 ms 1572 KB Output is correct
10 Correct 2 ms 1572 KB Output is correct
11 Correct 2 ms 1568 KB Output is correct
12 Correct 2 ms 1564 KB Output is correct
13 Correct 1 ms 1564 KB Output is correct
14 Correct 2 ms 1564 KB Output is correct
15 Correct 2 ms 1528 KB Output is correct
16 Correct 2 ms 1564 KB Output is correct
17 Correct 2 ms 1564 KB Output is correct
18 Correct 1 ms 1572 KB Output is correct
19 Correct 2 ms 1552 KB Output is correct
20 Correct 2 ms 1564 KB Output is correct
21 Correct 2 ms 1564 KB Output is correct
22 Correct 2 ms 1564 KB Output is correct
23 Correct 2 ms 1572 KB Output is correct
24 Correct 2 ms 1556 KB Output is correct
25 Correct 2 ms 1564 KB Output is correct
26 Correct 2 ms 1556 KB Output is correct
27 Correct 2 ms 1572 KB Output is correct
28 Correct 2 ms 1564 KB Output is correct

Subtask #6
71.0 / 71.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 12096 KB Output is correct
2 Correct 26 ms 12620 KB Output is correct
3 Correct 1 ms 1300 KB Output is correct
4 Correct 20 ms 11812 KB Output is correct
5 Correct 32 ms 13048 KB Output is correct
6 Correct 30 ms 13048 KB Output is correct
7 Correct 26 ms 12120 KB Output is correct
8 Correct 25 ms 12120 KB Output is correct
9 Correct 30 ms 13136 KB Output is correct
10 Correct 28 ms 13348 KB Output is correct
11 Correct 28 ms 13096 KB Output is correct
12 Correct 40 ms 12992 KB Output is correct
13 Correct 33 ms 13128 KB Output is correct
14 Correct 28 ms 13128 KB Output is correct
15 Correct 28 ms 13140 KB Output is correct
16 Correct 34 ms 13304 KB Output is correct
17 Correct 28 ms 12868 KB Output is correct
18 Correct 27 ms 12844 KB Output is correct
19 Correct 28 ms 12776 KB Output is correct
20 Correct 28 ms 12884 KB Output is correct
21 Correct 33 ms 12860 KB Output is correct
22 Correct 27 ms 12960 KB Output is correct
23 Correct 26 ms 12116 KB Output is correct
24 Correct 24 ms 12184 KB Output is correct
25 Correct 24 ms 12372 KB Output is correct
26 Correct 25 ms 12360 KB Output is correct
27 Correct 26 ms 12624 KB Output is correct
28 Correct 27 ms 13052 KB Output is correct
29 Correct 26 ms 12848 KB Output is correct
30 Correct 26 ms 12832 KB Output is correct
31 Correct 25 ms 12112 KB Output is correct
32 Correct 25 ms 11956 KB Output is correct
33 Correct 26 ms 12356 KB Output is correct
34 Correct 24 ms 12368 KB Output is correct
35 Correct 27 ms 12700 KB Output is correct
36 Correct 26 ms 12800 KB Output is correct
37 Correct 26 ms 12616 KB Output is correct
38 Correct 34 ms 12572 KB Output is correct
39 Correct 26 ms 12624 KB Output is correct
40 Correct 26 ms 12812 KB Output is correct
41 Correct 26 ms 12812 KB Output is correct
42 Correct 27 ms 12664 KB Output is correct
43 Correct 30 ms 12696 KB Output is correct
44 Correct 27 ms 12872 KB Output is correct
45 Correct 27 ms 12792 KB Output is correct
46 Correct 27 ms 12972 KB Output is correct
47 Correct 26 ms 12640 KB Output is correct
48 Correct 26 ms 12616 KB Output is correct
49 Correct 26 ms 12616 KB Output is correct
50 Correct 30 ms 12872 KB Output is correct
51 Correct 26 ms 12356 KB Output is correct
52 Correct 27 ms 12568 KB Output is correct
53 Correct 24 ms 12376 KB Output is correct
54 Correct 27 ms 12368 KB Output is correct
55 Correct 24 ms 12488 KB Output is correct
56 Correct 25 ms 12620 KB Output is correct
57 Correct 25 ms 12300 KB Output is correct
58 Correct 28 ms 12424 KB Output is correct
59 Correct 24 ms 12120 KB Output is correct
60 Correct 25 ms 12348 KB Output is correct

Subtask #7
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 12112 KB Output is correct
2 Correct 26 ms 12620 KB Output is correct
3 Correct 1 ms 1300 KB Output is correct
4 Correct 22 ms 11824 KB Output is correct
5 Correct 30 ms 13136 KB Output is correct
6 Correct 31 ms 13132 KB Output is correct
7 Correct 25 ms 12092 KB Output is correct
8 Correct 25 ms 12100 KB Output is correct
9 Correct 28 ms 13056 KB Output is correct
10 Correct 28 ms 13124 KB Output is correct
11 Correct 28 ms 13204 KB Output is correct
12 Correct 34 ms 13172 KB Output is correct
13 Correct 28 ms 13192 KB Output is correct
14 Correct 32 ms 13392 KB Output is correct
15 Correct 30 ms 13064 KB Output is correct
16 Correct 34 ms 13224 KB Output is correct
17 Correct 31 ms 12864 KB Output is correct
18 Correct 30 ms 12836 KB Output is correct
19 Correct 27 ms 12872 KB Output is correct
20 Correct 27 ms 13112 KB Output is correct
21 Correct 27 ms 12876 KB Output is correct
22 Correct 27 ms 12804 KB Output is correct
23 Correct 24 ms 12104 KB Output is correct
24 Correct 25 ms 11924 KB Output is correct
25 Correct 25 ms 12420 KB Output is correct
26 Correct 25 ms 12364 KB Output is correct
27 Correct 26 ms 12884 KB Output is correct
28 Correct 26 ms 12860 KB Output is correct
29 Correct 26 ms 12636 KB Output is correct
30 Correct 27 ms 12820 KB Output is correct
31 Correct 25 ms 12120 KB Output is correct
32 Correct 24 ms 12124 KB Output is correct
33 Correct 25 ms 12160 KB Output is correct
34 Correct 28 ms 12356 KB Output is correct
35 Correct 26 ms 12592 KB Output is correct
36 Correct 26 ms 12660 KB Output is correct
37 Correct 27 ms 12620 KB Output is correct
38 Correct 26 ms 12804 KB Output is correct
39 Correct 26 ms 12780 KB Output is correct
40 Correct 36 ms 12696 KB Output is correct
41 Correct 27 ms 12872 KB Output is correct
42 Correct 27 ms 12628 KB Output is correct
43 Correct 27 ms 12776 KB Output is correct
44 Correct 28 ms 13168 KB Output is correct
45 Correct 27 ms 12812 KB Output is correct
46 Correct 28 ms 13000 KB Output is correct
47 Correct 27 ms 12612 KB Output is correct
48 Correct 26 ms 12728 KB Output is correct
49 Correct 25 ms 12620 KB Output is correct
50 Correct 26 ms 12548 KB Output is correct
51 Correct 24 ms 12360 KB Output is correct
52 Correct 30 ms 12456 KB Output is correct
53 Correct 26 ms 12556 KB Output is correct
54 Correct 24 ms 12352 KB Output is correct
55 Correct 27 ms 12172 KB Output is correct
56 Correct 25 ms 12440 KB Output is correct
57 Correct 25 ms 12568 KB Output is correct
58 Correct 27 ms 12372 KB Output is correct
59 Correct 24 ms 12124 KB Output is correct
60 Correct 24 ms 12092 KB Output is correct