oj.uz

Submission #960999

# Submission time Handle Problem Language Result Execution time Memory
960999 2024-04-11T11:13:16 Z alextodoran Stray Cat (JOI20_stray) C++17
91 / 100
 41 ms 16960 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] = 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 {
    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[1] > 0 ? 1 : 0));
                return cols.back();
            }
            // If not crossroad, take any option
            if (deg == 2) {
                cols.push_back((cnt_col[1] > 0 ? 1 : 0));
                return cols.back();
            }
            // If crossroad, take the only option with frequency 1
            passed_test = true;
            cols.push_back((cnt_col[1] == 1 ? 1 : 0));
            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[1] > 0 ? 1 : 0));
            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 31 ms 15816 KB Output is correct
2 Correct 1 ms 1308 KB Output is correct
3 Correct 26 ms 15032 KB Output is correct
4 Correct 41 ms 16960 KB Output is correct
5 Correct 37 ms 16956 KB Output is correct
6 Correct 28 ms 15732 KB Output is correct
7 Correct 30 ms 15780 KB Output is correct
8 Correct 37 ms 16440 KB Output is correct
9 Correct 34 ms 16584 KB Output is correct

Subtask #2
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 15816 KB Output is correct
2 Correct 1 ms 1308 KB Output is correct
3 Correct 26 ms 15032 KB Output is correct
4 Correct 41 ms 16960 KB Output is correct
5 Correct 37 ms 16956 KB Output is correct
6 Correct 28 ms 15732 KB Output is correct
7 Correct 30 ms 15780 KB Output is correct
8 Correct 37 ms 16440 KB Output is correct
9 Correct 34 ms 16584 KB Output is correct
10 Correct 27 ms 13676 KB Output is correct
11 Correct 28 ms 13684 KB Output is correct
12 Correct 26 ms 13676 KB Output is correct
13 Correct 27 ms 13680 KB Output is correct
14 Correct 28 ms 13932 KB Output is correct
15 Correct 30 ms 14188 KB Output is correct
16 Correct 32 ms 16676 KB Output is correct

Subtask #3
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 13408 KB Output is correct
2 Correct 1 ms 1304 KB Output is correct
3 Correct 23 ms 12872 KB Output is correct
4 Correct 32 ms 14800 KB Output is correct
5 Correct 41 ms 14948 KB Output is correct
6 Correct 33 ms 13432 KB Output is correct
7 Correct 27 ms 13436 KB Output is correct
8 Correct 31 ms 14372 KB Output is correct
9 Correct 34 ms 14280 KB Output is correct
10 Correct 28 ms 14024 KB Output is correct
11 Correct 30 ms 13912 KB Output is correct
12 Correct 34 ms 13988 KB Output is correct
13 Correct 33 ms 13900 KB Output is correct
14 Correct 31 ms 14136 KB Output is correct
15 Correct 31 ms 14268 KB Output is correct

Subtask #4
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 13408 KB Output is correct
2 Correct 1 ms 1304 KB Output is correct
3 Correct 23 ms 12872 KB Output is correct
4 Correct 32 ms 14800 KB Output is correct
5 Correct 41 ms 14948 KB Output is correct
6 Correct 33 ms 13432 KB Output is correct
7 Correct 27 ms 13436 KB Output is correct
8 Correct 31 ms 14372 KB Output is correct
9 Correct 34 ms 14280 KB Output is correct
10 Correct 28 ms 14024 KB Output is correct
11 Correct 30 ms 13912 KB Output is correct
12 Correct 34 ms 13988 KB Output is correct
13 Correct 33 ms 13900 KB Output is correct
14 Correct 31 ms 14136 KB Output is correct
15 Correct 31 ms 14268 KB Output is correct
16 Correct 24 ms 11884 KB Output is correct
17 Correct 32 ms 11832 KB Output is correct
18 Correct 27 ms 11580 KB Output is correct
19 Correct 32 ms 11644 KB Output is correct
20 Correct 27 ms 12288 KB Output is correct
21 Correct 34 ms 12144 KB Output is correct
22 Correct 33 ms 14460 KB Output is correct
23 Correct 33 ms 12128 KB Output is correct
24 Correct 31 ms 11740 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1808 KB Output is correct
2 Correct 1 ms 1296 KB Output is correct
3 Correct 1 ms 1564 KB Output is correct
4 Correct 2 ms 1560 KB Output is correct
5 Correct 2 ms 1556 KB Output is correct
6 Correct 2 ms 1564 KB Output is correct
7 Correct 2 ms 1564 KB Output is correct
8 Correct 2 ms 1560 KB Output is correct
9 Correct 2 ms 1568 KB Output is correct
10 Correct 2 ms 1568 KB Output is correct
11 Correct 1 ms 1568 KB Output is correct
12 Correct 2 ms 1560 KB Output is correct
13 Correct 2 ms 1568 KB Output is correct
14 Correct 2 ms 1568 KB Output is correct
15 Correct 2 ms 1556 KB Output is correct
16 Correct 2 ms 1564 KB Output is correct
17 Correct 2 ms 1560 KB Output is correct
18 Correct 2 ms 1568 KB Output is correct
19 Correct 2 ms 1556 KB Output is correct
20 Correct 2 ms 1568 KB Output is correct
21 Correct 2 ms 1568 KB Output is correct
22 Correct 2 ms 1560 KB Output is correct
23 Correct 2 ms 1552 KB Output is correct
24 Correct 2 ms 1568 KB Output is correct
25 Correct 2 ms 1564 KB Output is correct
26 Correct 2 ms 1568 KB Output is correct
27 Correct 2 ms 1564 KB Output is correct
28 Correct 2 ms 1560 KB Output is correct

Subtask #6
71.0 / 71.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 11644 KB Output is correct
2 Correct 27 ms 12108 KB Output is correct
3 Correct 1 ms 1292 KB Output is correct
4 Correct 20 ms 11392 KB Output is correct
5 Correct 38 ms 12908 KB Output is correct
6 Correct 32 ms 12976 KB Output is correct
7 Correct 28 ms 11848 KB Output is correct
8 Correct 27 ms 11896 KB Output is correct
9 Correct 34 ms 12844 KB Output is correct
10 Correct 37 ms 13020 KB Output is correct
11 Correct 35 ms 13048 KB Output is correct
12 Correct 31 ms 12840 KB Output is correct
13 Correct 30 ms 12908 KB Output is correct
14 Correct 31 ms 12904 KB Output is correct
15 Correct 34 ms 12864 KB Output is correct
16 Correct 41 ms 12980 KB Output is correct
17 Correct 31 ms 12532 KB Output is correct
18 Correct 30 ms 12656 KB Output is correct
19 Correct 28 ms 12588 KB Output is correct
20 Correct 27 ms 12644 KB Output is correct
21 Correct 28 ms 12660 KB Output is correct
22 Correct 27 ms 12664 KB Output is correct
23 Correct 30 ms 11512 KB Output is correct
24 Correct 26 ms 11632 KB Output is correct
25 Correct 25 ms 11896 KB Output is correct
26 Correct 26 ms 11896 KB Output is correct
27 Correct 28 ms 12408 KB Output is correct
28 Correct 27 ms 12192 KB Output is correct
29 Correct 28 ms 12396 KB Output is correct
30 Correct 27 ms 12484 KB Output is correct
31 Correct 25 ms 11660 KB Output is correct
32 Correct 26 ms 11672 KB Output is correct
33 Correct 27 ms 11764 KB Output is correct
34 Correct 25 ms 11888 KB Output is correct
35 Correct 27 ms 12208 KB Output is correct
36 Correct 27 ms 12380 KB Output is correct
37 Correct 27 ms 12400 KB Output is correct
38 Correct 26 ms 12400 KB Output is correct
39 Correct 27 ms 12352 KB Output is correct
40 Correct 27 ms 12408 KB Output is correct
41 Correct 31 ms 12632 KB Output is correct
42 Correct 31 ms 12664 KB Output is correct
43 Correct 34 ms 12628 KB Output is correct
44 Correct 32 ms 12400 KB Output is correct
45 Correct 36 ms 12628 KB Output is correct
46 Correct 31 ms 12656 KB Output is correct
47 Correct 27 ms 12148 KB Output is correct
48 Correct 33 ms 12088 KB Output is correct
49 Correct 26 ms 12144 KB Output is correct
50 Correct 37 ms 12116 KB Output is correct
51 Correct 37 ms 11816 KB Output is correct
52 Correct 26 ms 11900 KB Output is correct
53 Correct 30 ms 11848 KB Output is correct
54 Correct 35 ms 11724 KB Output is correct
55 Correct 32 ms 11868 KB Output is correct
56 Correct 32 ms 12008 KB Output is correct
57 Correct 26 ms 12160 KB Output is correct
58 Correct 26 ms 12148 KB Output is correct
59 Correct 30 ms 11920 KB Output is correct
60 Correct 27 ms 11892 KB Output is correct

Subtask #7
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 11640 KB Output is correct
2 Correct 40 ms 11984 KB Output is correct
3 Correct 0 ms 1308 KB Output is correct
4 Correct 28 ms 11376 KB Output is correct
5 Correct 38 ms 12904 KB Output is correct
6 Correct 31 ms 12912 KB Output is correct
7 Incorrect 32 ms 11888 KB Wrong Answer [6]
8 Halted 0 ms 0 KB -