oj.uz

Submission #246166

# Submission time Handle Problem Language Result Execution time Memory
246166 2020-07-08T10:24:06 Z Nightlight Dango Maker (JOI18_dango_maker) C++14
33 / 100
 1052 ms 262148 KB 
#include <bits/stdc++.h>
using namespace std;

const int MAXP = 5000005;

int N, M;
vector<int> adj[MAXP];
char A[3005][3005];
int id[3001][3001];
int match[MAXP];
bitset<MAXP> 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') {
          if(p >= MAXP) return 69;
          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') {
        if(p >= MAXP) return 69;
        ++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:34:8: 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:37:12: 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 72 ms 118392 KB Output is correct
2 Correct 73 ms 118392 KB Output is correct
3 Correct 81 ms 118392 KB Output is correct
4 Correct 73 ms 118344 KB Output is correct
5 Correct 75 ms 118392 KB Output is correct
6 Correct 72 ms 118392 KB Output is correct
7 Correct 74 ms 118392 KB Output is correct
8 Correct 73 ms 118392 KB Output is correct
9 Correct 76 ms 118396 KB Output is correct
10 Correct 80 ms 118392 KB Output is correct
11 Correct 72 ms 118392 KB Output is correct
12 Correct 76 ms 118396 KB Output is correct
13 Correct 74 ms 118392 KB Output is correct
14 Correct 77 ms 118392 KB Output is correct
15 Correct 78 ms 118392 KB Output is correct
16 Correct 83 ms 118392 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 118392 KB Output is correct
2 Correct 73 ms 118392 KB Output is correct
3 Correct 81 ms 118392 KB Output is correct
4 Correct 73 ms 118344 KB Output is correct
5 Correct 75 ms 118392 KB Output is correct
6 Correct 72 ms 118392 KB Output is correct
7 Correct 74 ms 118392 KB Output is correct
8 Correct 73 ms 118392 KB Output is correct
9 Correct 76 ms 118396 KB Output is correct
10 Correct 80 ms 118392 KB Output is correct
11 Correct 72 ms 118392 KB Output is correct
12 Correct 76 ms 118396 KB Output is correct
13 Correct 74 ms 118392 KB Output is correct
14 Correct 77 ms 118392 KB Output is correct
15 Correct 78 ms 118392 KB Output is correct
16 Correct 83 ms 118392 KB Output is correct
17 Correct 72 ms 118392 KB Output is correct
18 Correct 73 ms 118392 KB Output is correct
19 Correct 76 ms 118392 KB Output is correct
20 Correct 74 ms 118392 KB Output is correct
21 Correct 74 ms 118392 KB Output is correct
22 Correct 75 ms 118392 KB Output is correct
23 Correct 74 ms 118392 KB Output is correct
24 Correct 72 ms 118392 KB Output is correct
25 Correct 74 ms 118392 KB Output is correct
26 Correct 73 ms 118392 KB Output is correct
27 Correct 76 ms 118392 KB Output is correct
28 Correct 73 ms 118392 KB Output is correct
29 Correct 73 ms 118392 KB Output is correct
30 Correct 75 ms 118520 KB Output is correct
31 Correct 73 ms 118396 KB Output is correct
32 Correct 73 ms 118520 KB Output is correct
33 Correct 74 ms 118392 KB Output is correct
34 Correct 71 ms 118392 KB Output is correct
35 Correct 74 ms 118392 KB Output is correct
36 Correct 72 ms 118392 KB Output is correct
37 Correct 73 ms 118392 KB Output is correct
38 Correct 72 ms 118392 KB Output is correct
39 Correct 73 ms 118392 KB Output is correct
40 Correct 72 ms 118392 KB Output is correct
41 Correct 76 ms 118520 KB Output is correct
42 Correct 75 ms 118392 KB Output is correct
43 Correct 75 ms 118396 KB Output is correct
44 Correct 71 ms 118392 KB Output is correct
45 Correct 72 ms 118396 KB Output is correct
46 Correct 74 ms 118392 KB Output is correct
47 Correct 74 ms 118520 KB Output is correct
48 Correct 74 ms 118396 KB Output is correct
49 Correct 72 ms 118392 KB Output is correct
50 Correct 72 ms 118392 KB Output is correct
51 Correct 74 ms 118392 KB Output is correct
52 Correct 72 ms 118448 KB Output is correct
53 Correct 72 ms 118392 KB Output is correct

Subtask #3
0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 118392 KB Output is correct
2 Correct 73 ms 118392 KB Output is correct
3 Correct 81 ms 118392 KB Output is correct
4 Correct 73 ms 118344 KB Output is correct
5 Correct 75 ms 118392 KB Output is correct
6 Correct 72 ms 118392 KB Output is correct
7 Correct 74 ms 118392 KB Output is correct
8 Correct 73 ms 118392 KB Output is correct
9 Correct 76 ms 118396 KB Output is correct
10 Correct 80 ms 118392 KB Output is correct
11 Correct 72 ms 118392 KB Output is correct
12 Correct 76 ms 118396 KB Output is correct
13 Correct 74 ms 118392 KB Output is correct
14 Correct 77 ms 118392 KB Output is correct
15 Correct 78 ms 118392 KB Output is correct
16 Correct 83 ms 118392 KB Output is correct
17 Correct 72 ms 118392 KB Output is correct
18 Correct 73 ms 118392 KB Output is correct
19 Correct 76 ms 118392 KB Output is correct
20 Correct 74 ms 118392 KB Output is correct
21 Correct 74 ms 118392 KB Output is correct
22 Correct 75 ms 118392 KB Output is correct
23 Correct 74 ms 118392 KB Output is correct
24 Correct 72 ms 118392 KB Output is correct
25 Correct 74 ms 118392 KB Output is correct
26 Correct 73 ms 118392 KB Output is correct
27 Correct 76 ms 118392 KB Output is correct
28 Correct 73 ms 118392 KB Output is correct
29 Correct 73 ms 118392 KB Output is correct
30 Correct 75 ms 118520 KB Output is correct
31 Correct 73 ms 118396 KB Output is correct
32 Correct 73 ms 118520 KB Output is correct
33 Correct 74 ms 118392 KB Output is correct
34 Correct 71 ms 118392 KB Output is correct
35 Correct 74 ms 118392 KB Output is correct
36 Correct 72 ms 118392 KB Output is correct
37 Correct 73 ms 118392 KB Output is correct
38 Correct 72 ms 118392 KB Output is correct
39 Correct 73 ms 118392 KB Output is correct
40 Correct 72 ms 118392 KB Output is correct
41 Correct 76 ms 118520 KB Output is correct
42 Correct 75 ms 118392 KB Output is correct
43 Correct 75 ms 118396 KB Output is correct
44 Correct 71 ms 118392 KB Output is correct
45 Correct 72 ms 118396 KB Output is correct
46 Correct 74 ms 118392 KB Output is correct
47 Correct 74 ms 118520 KB Output is correct
48 Correct 74 ms 118396 KB Output is correct
49 Correct 72 ms 118392 KB Output is correct
50 Correct 72 ms 118392 KB Output is correct
51 Correct 74 ms 118392 KB Output is correct
52 Correct 72 ms 118448 KB Output is correct
53 Correct 72 ms 118392 KB Output is correct
54 Correct 71 ms 118396 KB Output is correct
55 Correct 78 ms 128504 KB Output is correct
56 Correct 75 ms 118520 KB Output is correct
57 Correct 85 ms 131960 KB Output is correct
58 Correct 162 ms 130296 KB Output is correct
59 Correct 806 ms 171384 KB Output is correct
60 Correct 800 ms 171600 KB Output is correct
61 Correct 806 ms 171388 KB Output is correct
62 Correct 74 ms 118392 KB Output is correct
63 Correct 782 ms 171128 KB Output is correct
64 Runtime error 1052 ms 262148 KB Execution killed with signal 9 (could be triggered by violating memory limits)
65 Halted 0 ms 0 KB -