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Submission #747694

# Submission time Handle Problem Language Result Execution time Memory
747694 2023-05-24T13:33:29 Z tch1cherin Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
15 / 100
 17 ms 3816 KB 
#include <bits/stdc++.h>
using namespace std;

const int INF = 1e9;

int main() {
  int n;
  string s;
  cin >> n >> s;
  int R = count(s.begin(), s.end(), 'R');
  int G = count(s.begin(), s.end(), 'G');
  int Y = count(s.begin(), s.end(), 'Y');
  vector<int> red(n + 1), green(n + 1), yellow(n + 1);
  for (int i = 0; i < n; i++) {
    red[i + 1] = red[i] + (int)(s[i] == 'R');
    green[i + 1] = green[i] + (int)(s[i] == 'G');
    yellow[i + 1] = yellow[i] + (int)(s[i] == 'Y');
  }
  vector dp(R + 1, vector(G + 1, vector(Y + 1, vector<int>(4, INF))));
  dp[R][G][Y][3] = 0;
  for (int i = n; i > 0; i--) {
    for (int r = 0; r <= R && r <= (i + 1) / 2; r++) {
      for (int g = 0; g <= G && g <= (i + 1) / 2 && r + g <= i; g++) {
        int y = i - r - g;
        if (y > Y) {
          continue;
        }
        for (int l = 0; l < 4; l++) {
          int Rq = red[i - 1], Gq = green[i - 1], Yq = yellow[i - 1]; 
          if (l != 0 && r > 0) {
            dp[r - 1][g][y][0] = min(dp[r - 1][g][y][0], dp[r][g][y][l] + abs(Rq - (r - 1)) + abs(Gq - g) + abs(Yq - y));
          }
          if (l != 1 && g > 0) {
            dp[r][g - 1][y][1] = min(dp[r][g - 1][y][1], dp[r][g][y][l] + abs(Rq - r) + abs(Gq - (g - 1)) + abs(Yq - y));
          }
          if (l != 2 && y > 0) {
            dp[r][g][y - 1][2] = min(dp[r][g][y - 1][2], dp[r][g][y][l] + abs(Rq - r) + abs(Gq - g) + abs(Yq - (y - 1)));
          }
        }
      } 
    }
  }
  int ans = min({dp[0][0][0][0], dp[0][0][0][1], dp[0][0][0][2]});
  cout << (ans == INF ? -1 : ans / 2) << "\n";
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 304 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 304 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 300 KB Output is correct
6 Correct 1 ms 304 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Incorrect 1 ms 300 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #2
0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 304 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 304 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 300 KB Output is correct
6 Correct 1 ms 304 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Incorrect 1 ms 300 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 356 KB Output is correct
2 Correct 11 ms 3764 KB Output is correct
3 Correct 12 ms 3792 KB Output is correct
4 Correct 11 ms 3760 KB Output is correct
5 Correct 12 ms 3812 KB Output is correct
6 Correct 17 ms 3808 KB Output is correct
7 Correct 11 ms 3668 KB Output is correct
8 Correct 15 ms 3796 KB Output is correct
9 Correct 15 ms 3668 KB Output is correct
10 Correct 11 ms 3816 KB Output is correct
11 Correct 12 ms 3796 KB Output is correct
12 Correct 4 ms 1236 KB Output is correct
13 Correct 5 ms 1876 KB Output is correct
14 Correct 10 ms 2700 KB Output is correct
15 Correct 12 ms 3816 KB Output is correct
16 Correct 12 ms 3796 KB Output is correct

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 304 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 304 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 300 KB Output is correct
6 Correct 1 ms 304 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Incorrect 1 ms 300 KB Output isn't correct
12 Halted 0 ms 0 KB -