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Submission #938005

# Submission time Handle Problem Language Result Execution time Memory
938005 2024-03-04T17:32:40 Z kitlix Dango Maker (JOI18_dango_maker) C++17
100 / 100
 955 ms 262144 KB 
#include <bits/stdc++.h>

using namespace std;

const int INF = 1e9;

vector<vector<int>> g;
vector<int> used, mt;
int timer = 1;

bool kuhn(int v) {
    if (used[v] == timer)
        return false;
    used[v] = timer;
    for (auto to : g[v]) {
        if (mt[to] == -1) {
            mt[to] = v;
            return true;
        }
    }
    for (auto to : g[v]) {
        if (kuhn(mt[to])) {
            mt[to] = v;
            return true;
        }
    }
    return false;
}

signed main() {
    ios_base::sync_with_stdio(0), cin.tie(0);
    int n, m;
    cin >> n >> m;
    vector<vector<int>> table(n, vector<int>(m));
    for (auto& r : table) {
        string s;
        cin >> s;
        for (int j = 0; j < m; ++j) {
            if (s[j] == 'R')
                r[j] = 0;
            else if (s[j] == 'G')
                r[j] = 1;
            else
                r[j] = 2;
        }
    }
    int allcnt = 0;
    vector<vector<int>> has_vert(n, vector<int>(m, -1));
    for (int i = 0; i < n; ++i) {
        for (int j = 0; j < m; ++j) {
            if (table[i][j])
                continue;
            if (i + 2 < n) {
                if (table[i + 1][j] == 1 && table[i + 2][j] == 2) {
                    has_vert[i][j] = allcnt;
                    mt.emplace_back(-1);
                    allcnt += 1;
                }
            }
        }
    }
    for (int i = 0; i < n; ++i) {
        for (int j = 0; j < m; ++j) {
            if (table[i][j])
                continue;
            if (j + 2 < m) {
                if (table[i][j + 1] == 1 && table[i][j + 2] == 2) {
                    allcnt += 1;
                    g.emplace_back();
                    used.emplace_back();
                    if (has_vert[i][j] != -1)
                        g[g.size() - 1].push_back(has_vert[i][j]);
                    if (i - 1 >= 0 && j + 1 < m && has_vert[i - 1][j + 1] != -1)
                        g[g.size() - 1].push_back(has_vert[i - 1][j + 1]);
                    if (i - 2 >= 0 && j + 2 < m && has_vert[i - 2][j + 2] != -1)
                        g[g.size() - 1].push_back(has_vert[i - 2][j + 2]);
                }
            }
        }
    }
    for (int i = 0; i < g.size(); ++i)
        if (kuhn(i))
            timer += 1;
    int bipmt = 0;
    for (int i = 0; i < mt.size(); ++i)
        if (mt[i] != -1)
            bipmt += 1;
    cout << allcnt - bipmt;
}

Compilation message

dango_maker.cpp: In function 'int main()':
dango_maker.cpp:81:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   81 |     for (int i = 0; i < g.size(); ++i)
      |                     ~~^~~~~~~~~~
dango_maker.cpp:85:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   85 |     for (int i = 0; i < mt.size(); ++i)
      |                     ~~^~~~~~~~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 0 ms 600 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 0 ms 600 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 600 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 344 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 1 ms 344 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 344 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 1 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct

Subtask #3
67.0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 0 ms 600 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 600 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 1 ms 344 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 344 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 1 ms 344 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 344 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 1 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 1 ms 604 KB Output is correct
56 Correct 1 ms 604 KB Output is correct
57 Correct 1 ms 604 KB Output is correct
58 Correct 23 ms 10364 KB Output is correct
59 Correct 194 ms 98744 KB Output is correct
60 Correct 202 ms 98412 KB Output is correct
61 Correct 205 ms 97468 KB Output is correct
62 Correct 1 ms 348 KB Output is correct
63 Correct 187 ms 94476 KB Output is correct
64 Correct 655 ms 262144 KB Output is correct
65 Correct 707 ms 262144 KB Output is correct
66 Correct 955 ms 262144 KB Output is correct
67 Correct 74 ms 96692 KB Output is correct
68 Correct 77 ms 97208 KB Output is correct
69 Correct 85 ms 98264 KB Output is correct
70 Correct 54 ms 32196 KB Output is correct
71 Correct 56 ms 32828 KB Output is correct
72 Correct 57 ms 33628 KB Output is correct
73 Correct 60 ms 33552 KB Output is correct
74 Correct 57 ms 32964 KB Output is correct
75 Correct 56 ms 32184 KB Output is correct
76 Correct 64 ms 33168 KB Output is correct
77 Correct 57 ms 32448 KB Output is correct
78 Correct 59 ms 32448 KB Output is correct
79 Correct 58 ms 32836 KB Output is correct
80 Correct 62 ms 33568 KB Output is correct
81 Correct 69 ms 32124 KB Output is correct
82 Correct 58 ms 33988 KB Output is correct
83 Correct 59 ms 33732 KB Output is correct
84 Correct 58 ms 33724 KB Output is correct
85 Correct 58 ms 33216 KB Output is correct
86 Correct 57 ms 32928 KB Output is correct
87 Correct 75 ms 33980 KB Output is correct
88 Correct 74 ms 32708 KB Output is correct
89 Correct 58 ms 33988 KB Output is correct
90 Correct 57 ms 32452 KB Output is correct