oj.uz

Submission #246165

# Submission time Handle Problem Language Result Execution time Memory
246165 2020-07-08T10:22:18 Z Nightlight Dango Maker (JOI18_dango_maker) C++14
33 / 100
 1097 ms 262144 KB 
#include <bits/stdc++.h>
using namespace std;

int N, M;
vector<int> adj[4000005];
char A[3005][3005];
int id[3001][3001];
int match[4000005];
bitset<4000005> vis;
int p;

void edge(int u, int v) {
//  cout << u << " " << v << "\n";
  adj[u].emplace_back(v);
  adj[v].emplace_back(u);
}

int kuhn(int u) {
  if(vis[u]) return 0;
  vis[u] = 1;
  for(int v : adj[u]) {
    if(match[v] == 0 || kuhn(match[v])) {
      match[u] = v;
      match[v] = u;
      return 1;
    }
  }
  return 0;
}

int main() {
  scanf("%d %d", &N, &M);
  for(int i = 1; i <= N; i++) {
    for(int j = 1; j <= M; j++) {
      scanf(" %c", &A[i][j]);
    }
  }
  for(int i = 1; i <= N; i++) {
    for(int j = 1; j <= M; j++) {
      if(A[i][j] == 'G') {
        if(A[i - 1][j] == 'R' && A[i + 1][j] == 'W') {
          id[i - 1][j] = ++p;
          id[i][j] = p;
          id[i + 1][j] = p;
        }
      }
    }
  }
  for(int i = 1; i <= N; i++) {
    for(int j = 1; j <= M; j++) {
      if(A[i][j] == 'R' && A[i][j + 1] == 'G' && A[i][j + 2] == 'W') {
        ++p;
        if(id[i][j]) edge(id[i][j], p);
        if(id[i][j + 1]) edge(id[i][j + 1], p);
        if(id[i][j + 2]) edge(id[i][j + 2], p);
      }
    }
  }
  bool ok = 0;
  int cnt = 0;
  while(ok == 0) {
    ok = 1;
    vis = 0;
    for(int i = 1; i <= p; i++) {
      if(match[i] == 0 && kuhn(i)) {
        cnt++;
        ok = 0;
      }
    }
  }
  printf("%d\n", p - cnt);
//  cin >> N;
}

Compilation message

dango_maker.cpp: In function 'int main()':
dango_maker.cpp:32:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", &N, &M);
   ~~~~~^~~~~~~~~~~~~~~~~
dango_maker.cpp:35:12: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
       scanf(" %c", &A[i][j]);
       ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 63 ms 94840 KB Output is correct
2 Correct 69 ms 94712 KB Output is correct
3 Correct 61 ms 94712 KB Output is correct
4 Correct 69 ms 94840 KB Output is correct
5 Correct 62 ms 94840 KB Output is correct
6 Correct 60 ms 94840 KB Output is correct
7 Correct 64 ms 94968 KB Output is correct
8 Correct 60 ms 94840 KB Output is correct
9 Correct 61 ms 94840 KB Output is correct
10 Correct 59 ms 94712 KB Output is correct
11 Correct 60 ms 94712 KB Output is correct
12 Correct 60 ms 94712 KB Output is correct
13 Correct 61 ms 94840 KB Output is correct
14 Correct 60 ms 94840 KB Output is correct
15 Correct 61 ms 94712 KB Output is correct
16 Correct 62 ms 94712 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 63 ms 94840 KB Output is correct
2 Correct 69 ms 94712 KB Output is correct
3 Correct 61 ms 94712 KB Output is correct
4 Correct 69 ms 94840 KB Output is correct
5 Correct 62 ms 94840 KB Output is correct
6 Correct 60 ms 94840 KB Output is correct
7 Correct 64 ms 94968 KB Output is correct
8 Correct 60 ms 94840 KB Output is correct
9 Correct 61 ms 94840 KB Output is correct
10 Correct 59 ms 94712 KB Output is correct
11 Correct 60 ms 94712 KB Output is correct
12 Correct 60 ms 94712 KB Output is correct
13 Correct 61 ms 94840 KB Output is correct
14 Correct 60 ms 94840 KB Output is correct
15 Correct 61 ms 94712 KB Output is correct
16 Correct 62 ms 94712 KB Output is correct
17 Correct 58 ms 94712 KB Output is correct
18 Correct 61 ms 94840 KB Output is correct
19 Correct 64 ms 94840 KB Output is correct
20 Correct 62 ms 94840 KB Output is correct
21 Correct 68 ms 94844 KB Output is correct
22 Correct 59 ms 94844 KB Output is correct
23 Correct 61 ms 94840 KB Output is correct
24 Correct 61 ms 94840 KB Output is correct
25 Correct 63 ms 94712 KB Output is correct
26 Correct 60 ms 94712 KB Output is correct
27 Correct 60 ms 94840 KB Output is correct
28 Correct 61 ms 94844 KB Output is correct
29 Correct 60 ms 94840 KB Output is correct
30 Correct 61 ms 94840 KB Output is correct
31 Correct 59 ms 94840 KB Output is correct
32 Correct 60 ms 94840 KB Output is correct
33 Correct 62 ms 94844 KB Output is correct
34 Correct 61 ms 94840 KB Output is correct
35 Correct 61 ms 94840 KB Output is correct
36 Correct 61 ms 94840 KB Output is correct
37 Correct 60 ms 94840 KB Output is correct
38 Correct 60 ms 94844 KB Output is correct
39 Correct 64 ms 94840 KB Output is correct
40 Correct 62 ms 94840 KB Output is correct
41 Correct 62 ms 94840 KB Output is correct
42 Correct 61 ms 94840 KB Output is correct
43 Correct 58 ms 94968 KB Output is correct
44 Correct 59 ms 94840 KB Output is correct
45 Correct 62 ms 94840 KB Output is correct
46 Correct 61 ms 94840 KB Output is correct
47 Correct 61 ms 94840 KB Output is correct
48 Correct 61 ms 94840 KB Output is correct
49 Correct 60 ms 94840 KB Output is correct
50 Correct 58 ms 94840 KB Output is correct
51 Correct 61 ms 94840 KB Output is correct
52 Correct 60 ms 94840 KB Output is correct
53 Correct 61 ms 94840 KB Output is correct

Subtask #3
0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 63 ms 94840 KB Output is correct
2 Correct 69 ms 94712 KB Output is correct
3 Correct 61 ms 94712 KB Output is correct
4 Correct 69 ms 94840 KB Output is correct
5 Correct 62 ms 94840 KB Output is correct
6 Correct 60 ms 94840 KB Output is correct
7 Correct 64 ms 94968 KB Output is correct
8 Correct 60 ms 94840 KB Output is correct
9 Correct 61 ms 94840 KB Output is correct
10 Correct 59 ms 94712 KB Output is correct
11 Correct 60 ms 94712 KB Output is correct
12 Correct 60 ms 94712 KB Output is correct
13 Correct 61 ms 94840 KB Output is correct
14 Correct 60 ms 94840 KB Output is correct
15 Correct 61 ms 94712 KB Output is correct
16 Correct 62 ms 94712 KB Output is correct
17 Correct 58 ms 94712 KB Output is correct
18 Correct 61 ms 94840 KB Output is correct
19 Correct 64 ms 94840 KB Output is correct
20 Correct 62 ms 94840 KB Output is correct
21 Correct 68 ms 94844 KB Output is correct
22 Correct 59 ms 94844 KB Output is correct
23 Correct 61 ms 94840 KB Output is correct
24 Correct 61 ms 94840 KB Output is correct
25 Correct 63 ms 94712 KB Output is correct
26 Correct 60 ms 94712 KB Output is correct
27 Correct 60 ms 94840 KB Output is correct
28 Correct 61 ms 94844 KB Output is correct
29 Correct 60 ms 94840 KB Output is correct
30 Correct 61 ms 94840 KB Output is correct
31 Correct 59 ms 94840 KB Output is correct
32 Correct 60 ms 94840 KB Output is correct
33 Correct 62 ms 94844 KB Output is correct
34 Correct 61 ms 94840 KB Output is correct
35 Correct 61 ms 94840 KB Output is correct
36 Correct 61 ms 94840 KB Output is correct
37 Correct 60 ms 94840 KB Output is correct
38 Correct 60 ms 94844 KB Output is correct
39 Correct 64 ms 94840 KB Output is correct
40 Correct 62 ms 94840 KB Output is correct
41 Correct 62 ms 94840 KB Output is correct
42 Correct 61 ms 94840 KB Output is correct
43 Correct 58 ms 94968 KB Output is correct
44 Correct 59 ms 94840 KB Output is correct
45 Correct 62 ms 94840 KB Output is correct
46 Correct 61 ms 94840 KB Output is correct
47 Correct 61 ms 94840 KB Output is correct
48 Correct 61 ms 94840 KB Output is correct
49 Correct 60 ms 94840 KB Output is correct
50 Correct 58 ms 94840 KB Output is correct
51 Correct 61 ms 94840 KB Output is correct
52 Correct 60 ms 94840 KB Output is correct
53 Correct 61 ms 94840 KB Output is correct
54 Correct 63 ms 94712 KB Output is correct
55 Correct 68 ms 105080 KB Output is correct
56 Correct 61 ms 94892 KB Output is correct
57 Correct 69 ms 108408 KB Output is correct
58 Correct 143 ms 107128 KB Output is correct
59 Correct 772 ms 148308 KB Output is correct
60 Correct 785 ms 148188 KB Output is correct
61 Correct 771 ms 148088 KB Output is correct
62 Correct 62 ms 94712 KB Output is correct
63 Correct 742 ms 147968 KB Output is correct
64 Runtime error 1097 ms 262144 KB Execution killed with signal 11 (could be triggered by violating memory limits)
65 Halted 0 ms 0 KB -