oj.uz

Submission #246159

# Submission time Handle Problem Language Result Execution time Memory
246159 2020-07-08T10:15:40 Z Nightlight Dango Maker (JOI18_dango_maker) C++14
33 / 100
 768 ms 232696 KB 
#include <bits/stdc++.h>
using namespace std;

int N, M;
vector<int> adj[3000005];
char A[3005][3005];
int id[3001][3001];
int match[3000005];
bitset<3000005> 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 46 ms 71160 KB Output is correct
2 Correct 46 ms 71160 KB Output is correct
3 Correct 47 ms 71168 KB Output is correct
4 Correct 48 ms 71164 KB Output is correct
5 Correct 47 ms 71160 KB Output is correct
6 Correct 49 ms 71160 KB Output is correct
7 Correct 47 ms 71168 KB Output is correct
8 Correct 46 ms 71168 KB Output is correct
9 Correct 46 ms 71168 KB Output is correct
10 Correct 47 ms 71168 KB Output is correct
11 Correct 49 ms 71192 KB Output is correct
12 Correct 47 ms 71160 KB Output is correct
13 Correct 46 ms 71168 KB Output is correct
14 Correct 47 ms 71160 KB Output is correct
15 Correct 46 ms 71168 KB Output is correct
16 Correct 46 ms 71160 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 46 ms 71160 KB Output is correct
2 Correct 46 ms 71160 KB Output is correct
3 Correct 47 ms 71168 KB Output is correct
4 Correct 48 ms 71164 KB Output is correct
5 Correct 47 ms 71160 KB Output is correct
6 Correct 49 ms 71160 KB Output is correct
7 Correct 47 ms 71168 KB Output is correct
8 Correct 46 ms 71168 KB Output is correct
9 Correct 46 ms 71168 KB Output is correct
10 Correct 47 ms 71168 KB Output is correct
11 Correct 49 ms 71192 KB Output is correct
12 Correct 47 ms 71160 KB Output is correct
13 Correct 46 ms 71168 KB Output is correct
14 Correct 47 ms 71160 KB Output is correct
15 Correct 46 ms 71168 KB Output is correct
16 Correct 46 ms 71160 KB Output is correct
17 Correct 52 ms 71168 KB Output is correct
18 Correct 46 ms 71168 KB Output is correct
19 Correct 47 ms 71160 KB Output is correct
20 Correct 48 ms 71160 KB Output is correct
21 Correct 47 ms 71288 KB Output is correct
22 Correct 46 ms 71288 KB Output is correct
23 Correct 45 ms 71160 KB Output is correct
24 Correct 46 ms 71160 KB Output is correct
25 Correct 48 ms 71160 KB Output is correct
26 Correct 48 ms 71160 KB Output is correct
27 Correct 48 ms 71160 KB Output is correct
28 Correct 48 ms 71160 KB Output is correct
29 Correct 47 ms 71160 KB Output is correct
30 Correct 48 ms 71288 KB Output is correct
31 Correct 45 ms 71168 KB Output is correct
32 Correct 46 ms 71160 KB Output is correct
33 Correct 46 ms 71160 KB Output is correct
34 Correct 46 ms 71160 KB Output is correct
35 Correct 47 ms 71160 KB Output is correct
36 Correct 47 ms 71160 KB Output is correct
37 Correct 50 ms 71420 KB Output is correct
38 Correct 46 ms 71160 KB Output is correct
39 Correct 56 ms 71264 KB Output is correct
40 Correct 46 ms 71160 KB Output is correct
41 Correct 46 ms 71168 KB Output is correct
42 Correct 47 ms 71168 KB Output is correct
43 Correct 48 ms 71160 KB Output is correct
44 Correct 48 ms 71168 KB Output is correct
45 Correct 47 ms 71168 KB Output is correct
46 Correct 49 ms 71160 KB Output is correct
47 Correct 46 ms 71168 KB Output is correct
48 Correct 45 ms 71168 KB Output is correct
49 Correct 47 ms 71256 KB Output is correct
50 Correct 51 ms 71160 KB Output is correct
51 Correct 54 ms 71336 KB Output is correct
52 Correct 48 ms 71168 KB Output is correct
53 Correct 48 ms 71288 KB Output is correct

Subtask #3
0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 46 ms 71160 KB Output is correct
2 Correct 46 ms 71160 KB Output is correct
3 Correct 47 ms 71168 KB Output is correct
4 Correct 48 ms 71164 KB Output is correct
5 Correct 47 ms 71160 KB Output is correct
6 Correct 49 ms 71160 KB Output is correct
7 Correct 47 ms 71168 KB Output is correct
8 Correct 46 ms 71168 KB Output is correct
9 Correct 46 ms 71168 KB Output is correct
10 Correct 47 ms 71168 KB Output is correct
11 Correct 49 ms 71192 KB Output is correct
12 Correct 47 ms 71160 KB Output is correct
13 Correct 46 ms 71168 KB Output is correct
14 Correct 47 ms 71160 KB Output is correct
15 Correct 46 ms 71168 KB Output is correct
16 Correct 46 ms 71160 KB Output is correct
17 Correct 52 ms 71168 KB Output is correct
18 Correct 46 ms 71168 KB Output is correct
19 Correct 47 ms 71160 KB Output is correct
20 Correct 48 ms 71160 KB Output is correct
21 Correct 47 ms 71288 KB Output is correct
22 Correct 46 ms 71288 KB Output is correct
23 Correct 45 ms 71160 KB Output is correct
24 Correct 46 ms 71160 KB Output is correct
25 Correct 48 ms 71160 KB Output is correct
26 Correct 48 ms 71160 KB Output is correct
27 Correct 48 ms 71160 KB Output is correct
28 Correct 48 ms 71160 KB Output is correct
29 Correct 47 ms 71160 KB Output is correct
30 Correct 48 ms 71288 KB Output is correct
31 Correct 45 ms 71168 KB Output is correct
32 Correct 46 ms 71160 KB Output is correct
33 Correct 46 ms 71160 KB Output is correct
34 Correct 46 ms 71160 KB Output is correct
35 Correct 47 ms 71160 KB Output is correct
36 Correct 47 ms 71160 KB Output is correct
37 Correct 50 ms 71420 KB Output is correct
38 Correct 46 ms 71160 KB Output is correct
39 Correct 56 ms 71264 KB Output is correct
40 Correct 46 ms 71160 KB Output is correct
41 Correct 46 ms 71168 KB Output is correct
42 Correct 47 ms 71168 KB Output is correct
43 Correct 48 ms 71160 KB Output is correct
44 Correct 48 ms 71168 KB Output is correct
45 Correct 47 ms 71168 KB Output is correct
46 Correct 49 ms 71160 KB Output is correct
47 Correct 46 ms 71168 KB Output is correct
48 Correct 45 ms 71168 KB Output is correct
49 Correct 47 ms 71256 KB Output is correct
50 Correct 51 ms 71160 KB Output is correct
51 Correct 54 ms 71336 KB Output is correct
52 Correct 48 ms 71168 KB Output is correct
53 Correct 48 ms 71288 KB Output is correct
54 Correct 62 ms 71160 KB Output is correct
55 Correct 59 ms 81300 KB Output is correct
56 Correct 48 ms 71296 KB Output is correct
57 Correct 57 ms 84728 KB Output is correct
58 Correct 139 ms 83064 KB Output is correct
59 Correct 756 ms 124468 KB Output is correct
60 Correct 768 ms 124348 KB Output is correct
61 Correct 756 ms 124280 KB Output is correct
62 Correct 47 ms 71160 KB Output is correct
63 Correct 743 ms 123900 KB Output is correct
64 Runtime error 723 ms 232696 KB Execution killed with signal 11 (could be triggered by violating memory limits)
65 Halted 0 ms 0 KB -