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Submission #531576

# Submission time Handle Problem Language Result Execution time Memory
531576 2022-03-01T04:22:26 Z erke Dango Maker (JOI18_dango_maker) C++11
13 / 100
 1 ms 384 KB 
#include <bits/stdc++.h>
using namespace std;

const int N = 3005;

int n, m;
char a[N][N];

bool chcol(int x, int y) {
  if (a[x][y] == 'R' && a[x + 1][y] == 'G' && a[x + 2][y] == 'W') return true;
  return false;
}

bool chrow(int x, int y) {
  if (a[x][y] == 'R' && a[x][y + 1] == 'G' && a[x][y + 2] == 'W') return true;
  return false;
}

int main() {
  cin.tie(0)->sync_with_stdio(0);
  cin >> n >> m;
  for (int i = 1; i <= n; i++)
  for (int j = 1; j <= m; j++) {
    cin >> a[i][j];
  }
  int ans = 0;
  for (int t = 2; t <= n + m - 2; t++) {
    vector<vector<int>> dp(3, vector<int>(3));
    int pos = 0;
    for (int j = t > n ? t - n : 1; j < t; j++) {
      int i = t - j;
      pos++;
      int cur = pos % 3, prv = (pos - 1 + 3) % 3, PRV = (pos - 2 + 3) % 3;
      dp[cur][0] = max({dp[prv][0], dp[prv][1], dp[prv][2]});
      if (chrow(i, j)) dp[cur][1] = max({dp[prv][0], dp[prv][1], dp[prv][2]}) + 1;
      if (chcol(i, j)) dp[cur][2] = max({dp[PRV][0], dp[PRV][2], dp[PRV][2]}) + 1;
    }
    int cur = pos % 3;
    ans += max({dp[cur][0], dp[cur][1], dp[cur][2]});
  }
  cout << ans << '\n';
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 320 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 0 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 320 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 0 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Incorrect 1 ms 332 KB Output isn't correct
21 Halted 0 ms 0 KB -

Subtask #3
0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 320 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 0 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 332 KB Output is correct
20 Incorrect 1 ms 332 KB Output isn't correct
21 Halted 0 ms 0 KB -