oj.uz

Submission #246164

# Submission time Handle Problem Language Result Execution time Memory
246164 2020-07-08T10:17:57 Z Nightlight Dango Maker (JOI18_dango_maker) C++14
33 / 100
 943 ms 262148 KB 
#include <bits/stdc++.h>
using namespace std;

int N, M;
vector<int> adj[6000005];
char A[3005][3005];
int id[3001][3001];
int match[6000005];
bitset<6000005> 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 86 ms 141944 KB Output is correct
2 Correct 87 ms 142004 KB Output is correct
3 Correct 86 ms 141944 KB Output is correct
4 Correct 85 ms 141944 KB Output is correct
5 Correct 83 ms 141944 KB Output is correct
6 Correct 96 ms 141944 KB Output is correct
7 Correct 85 ms 141944 KB Output is correct
8 Correct 87 ms 141944 KB Output is correct
9 Correct 87 ms 141944 KB Output is correct
10 Correct 84 ms 141944 KB Output is correct
11 Correct 88 ms 142072 KB Output is correct
12 Correct 84 ms 141944 KB Output is correct
13 Correct 87 ms 141944 KB Output is correct
14 Correct 88 ms 141944 KB Output is correct
15 Correct 88 ms 141944 KB Output is correct
16 Correct 84 ms 142072 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 141944 KB Output is correct
2 Correct 87 ms 142004 KB Output is correct
3 Correct 86 ms 141944 KB Output is correct
4 Correct 85 ms 141944 KB Output is correct
5 Correct 83 ms 141944 KB Output is correct
6 Correct 96 ms 141944 KB Output is correct
7 Correct 85 ms 141944 KB Output is correct
8 Correct 87 ms 141944 KB Output is correct
9 Correct 87 ms 141944 KB Output is correct
10 Correct 84 ms 141944 KB Output is correct
11 Correct 88 ms 142072 KB Output is correct
12 Correct 84 ms 141944 KB Output is correct
13 Correct 87 ms 141944 KB Output is correct
14 Correct 88 ms 141944 KB Output is correct
15 Correct 88 ms 141944 KB Output is correct
16 Correct 84 ms 142072 KB Output is correct
17 Correct 84 ms 142112 KB Output is correct
18 Correct 86 ms 142040 KB Output is correct
19 Correct 87 ms 142072 KB Output is correct
20 Correct 88 ms 142176 KB Output is correct
21 Correct 89 ms 142072 KB Output is correct
22 Correct 86 ms 142072 KB Output is correct
23 Correct 86 ms 142072 KB Output is correct
24 Correct 85 ms 142044 KB Output is correct
25 Correct 89 ms 142072 KB Output is correct
26 Correct 84 ms 141944 KB Output is correct
27 Correct 83 ms 142072 KB Output is correct
28 Correct 85 ms 142072 KB Output is correct
29 Correct 85 ms 142072 KB Output is correct
30 Correct 91 ms 142076 KB Output is correct
31 Correct 90 ms 142016 KB Output is correct
32 Correct 88 ms 142072 KB Output is correct
33 Correct 84 ms 142072 KB Output is correct
34 Correct 85 ms 142072 KB Output is correct
35 Correct 87 ms 142072 KB Output is correct
36 Correct 86 ms 142072 KB Output is correct
37 Correct 85 ms 142072 KB Output is correct
38 Correct 84 ms 142072 KB Output is correct
39 Correct 82 ms 142072 KB Output is correct
40 Correct 86 ms 142084 KB Output is correct
41 Correct 85 ms 142072 KB Output is correct
42 Correct 84 ms 142072 KB Output is correct
43 Correct 90 ms 142072 KB Output is correct
44 Correct 92 ms 142072 KB Output is correct
45 Correct 88 ms 142248 KB Output is correct
46 Correct 87 ms 142076 KB Output is correct
47 Correct 85 ms 142072 KB Output is correct
48 Correct 84 ms 142072 KB Output is correct
49 Correct 82 ms 142040 KB Output is correct
50 Correct 87 ms 142072 KB Output is correct
51 Correct 90 ms 142076 KB Output is correct
52 Correct 85 ms 142072 KB Output is correct
53 Correct 85 ms 142072 KB Output is correct

Subtask #3
0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 86 ms 141944 KB Output is correct
2 Correct 87 ms 142004 KB Output is correct
3 Correct 86 ms 141944 KB Output is correct
4 Correct 85 ms 141944 KB Output is correct
5 Correct 83 ms 141944 KB Output is correct
6 Correct 96 ms 141944 KB Output is correct
7 Correct 85 ms 141944 KB Output is correct
8 Correct 87 ms 141944 KB Output is correct
9 Correct 87 ms 141944 KB Output is correct
10 Correct 84 ms 141944 KB Output is correct
11 Correct 88 ms 142072 KB Output is correct
12 Correct 84 ms 141944 KB Output is correct
13 Correct 87 ms 141944 KB Output is correct
14 Correct 88 ms 141944 KB Output is correct
15 Correct 88 ms 141944 KB Output is correct
16 Correct 84 ms 142072 KB Output is correct
17 Correct 84 ms 142112 KB Output is correct
18 Correct 86 ms 142040 KB Output is correct
19 Correct 87 ms 142072 KB Output is correct
20 Correct 88 ms 142176 KB Output is correct
21 Correct 89 ms 142072 KB Output is correct
22 Correct 86 ms 142072 KB Output is correct
23 Correct 86 ms 142072 KB Output is correct
24 Correct 85 ms 142044 KB Output is correct
25 Correct 89 ms 142072 KB Output is correct
26 Correct 84 ms 141944 KB Output is correct
27 Correct 83 ms 142072 KB Output is correct
28 Correct 85 ms 142072 KB Output is correct
29 Correct 85 ms 142072 KB Output is correct
30 Correct 91 ms 142076 KB Output is correct
31 Correct 90 ms 142016 KB Output is correct
32 Correct 88 ms 142072 KB Output is correct
33 Correct 84 ms 142072 KB Output is correct
34 Correct 85 ms 142072 KB Output is correct
35 Correct 87 ms 142072 KB Output is correct
36 Correct 86 ms 142072 KB Output is correct
37 Correct 85 ms 142072 KB Output is correct
38 Correct 84 ms 142072 KB Output is correct
39 Correct 82 ms 142072 KB Output is correct
40 Correct 86 ms 142084 KB Output is correct
41 Correct 85 ms 142072 KB Output is correct
42 Correct 84 ms 142072 KB Output is correct
43 Correct 90 ms 142072 KB Output is correct
44 Correct 92 ms 142072 KB Output is correct
45 Correct 88 ms 142248 KB Output is correct
46 Correct 87 ms 142076 KB Output is correct
47 Correct 85 ms 142072 KB Output is correct
48 Correct 84 ms 142072 KB Output is correct
49 Correct 82 ms 142040 KB Output is correct
50 Correct 87 ms 142072 KB Output is correct
51 Correct 90 ms 142076 KB Output is correct
52 Correct 85 ms 142072 KB Output is correct
53 Correct 85 ms 142072 KB Output is correct
54 Correct 87 ms 142016 KB Output is correct
55 Correct 92 ms 152056 KB Output is correct
56 Correct 87 ms 142072 KB Output is correct
57 Correct 105 ms 155512 KB Output is correct
58 Correct 174 ms 153848 KB Output is correct
59 Correct 811 ms 195108 KB Output is correct
60 Correct 786 ms 195496 KB Output is correct
61 Correct 797 ms 195192 KB Output is correct
62 Correct 119 ms 141944 KB Output is correct
63 Correct 763 ms 194900 KB Output is correct
64 Runtime error 943 ms 262148 KB Execution killed with signal 9 (could be triggered by violating memory limits)
65 Halted 0 ms 0 KB -