oj.uz

Submission #747823

# Submission time Handle Problem Language Result Execution time Memory
747823 2023-05-24T20:42:14 Z tch1cherin Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
100 / 100
 372 ms 134820 KB 
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#include <bits/stdc++.h>
using namespace std;

void solve() {
  int n;
  string s;
  cin >> n >> s;
  vector<int> pos[3];
  for (int i = 0; i < n; i++) {
    if (s[i] == 'R') {
      pos[0].push_back(i);
    } else if (s[i] == 'G') {
      pos[1].push_back(i);
    } else {
      pos[2].push_back(i);
    }
  }
  int R = pos[0].size(), G = pos[1].size(), Y = pos[2].size();
  vector lb(3, vector<int>(n));
  for (int i = 0; i < 3; i++) {
    for (int j = 0; j < n; j++) {
      lb[i][j] = lower_bound(pos[i].begin(), pos[i].end(), j) - pos[i].begin();
    }
  }
  vector dp(R + 1, vector(G + 1, vector(Y + 1, vector<int>(4, 1e9))));
  dp[0][0][0][3] = 0;
  for (int i = 0; i < n; i++) {
    for (int r = 0; r <= R && r <= i; r++) {
      for (int g = 0; g <= G && r + g <= i; g++) {
        int y = i - r - g;
        if (y > Y) {
          continue;
        }
        for (int l = 0; l < 4; l++) {
          if (l != 0 && r < R) {
            int a = lb[1][pos[0][r]], b = lb[2][pos[0][r]]; 
            dp[r + 1][g][y][0] = min(dp[r + 1][g][y][0], dp[r][g][y][l] + max(0, g - a) + max(0, y - b));
          }
          if (l != 1 && g < G) {
            int a = lb[0][pos[1][g]], b = lb[2][pos[1][g]]; 
            dp[r][g + 1][y][1] = min(dp[r][g + 1][y][1], dp[r][g][y][l] + max(0, r - a) + max(0, y - b));
          }
          if (l != 2 && y < Y) {
            int a = lb[0][pos[2][y]], b = lb[1][pos[2][y]]; 
            dp[r][g][y + 1][2] = min(dp[r][g][y + 1][2], dp[r][g][y][l] + max(0, r - a) + max(0, g - b));
          }
        } 
      }
    }
  }
  int ans = min({dp[R][G][Y][0], dp[R][G][Y][1], dp[R][G][Y][2]});
  cout << (ans == 1e9 ? -1 : ans) << "\n";
}

int main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  solve();
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct

Subtask #2
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 2 ms 852 KB Output is correct
19 Correct 2 ms 852 KB Output is correct
20 Correct 2 ms 724 KB Output is correct
21 Correct 1 ms 852 KB Output is correct
22 Correct 1 ms 724 KB Output is correct
23 Correct 1 ms 852 KB Output is correct
24 Correct 1 ms 724 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 724 KB Output is correct
28 Correct 2 ms 852 KB Output is correct
29 Correct 1 ms 852 KB Output is correct
30 Correct 1 ms 852 KB Output is correct
31 Correct 2 ms 724 KB Output is correct
32 Correct 2 ms 852 KB Output is correct
33 Correct 1 ms 468 KB Output is correct
34 Correct 1 ms 468 KB Output is correct
35 Correct 2 ms 724 KB Output is correct
36 Correct 1 ms 724 KB Output is correct
37 Correct 1 ms 724 KB Output is correct
38 Correct 2 ms 724 KB Output is correct
39 Correct 2 ms 852 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 1 ms 468 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 17 ms 3796 KB Output is correct
3 Correct 18 ms 3796 KB Output is correct
4 Correct 18 ms 3820 KB Output is correct
5 Correct 19 ms 3824 KB Output is correct
6 Correct 19 ms 3796 KB Output is correct
7 Correct 17 ms 3796 KB Output is correct
8 Correct 15 ms 3796 KB Output is correct
9 Correct 15 ms 3668 KB Output is correct
10 Correct 15 ms 3824 KB Output is correct
11 Correct 15 ms 3832 KB Output is correct
12 Correct 3 ms 1236 KB Output is correct
13 Correct 6 ms 1876 KB Output is correct
14 Correct 12 ms 2716 KB Output is correct
15 Correct 16 ms 3828 KB Output is correct
16 Correct 15 ms 3796 KB Output is correct

Subtask #4
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 2 ms 852 KB Output is correct
19 Correct 2 ms 852 KB Output is correct
20 Correct 2 ms 724 KB Output is correct
21 Correct 1 ms 852 KB Output is correct
22 Correct 1 ms 724 KB Output is correct
23 Correct 1 ms 852 KB Output is correct
24 Correct 1 ms 724 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 724 KB Output is correct
28 Correct 2 ms 852 KB Output is correct
29 Correct 1 ms 852 KB Output is correct
30 Correct 1 ms 852 KB Output is correct
31 Correct 2 ms 724 KB Output is correct
32 Correct 2 ms 852 KB Output is correct
33 Correct 1 ms 468 KB Output is correct
34 Correct 1 ms 468 KB Output is correct
35 Correct 2 ms 724 KB Output is correct
36 Correct 1 ms 724 KB Output is correct
37 Correct 1 ms 724 KB Output is correct
38 Correct 2 ms 724 KB Output is correct
39 Correct 2 ms 852 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 0 ms 212 KB Output is correct
43 Correct 17 ms 3796 KB Output is correct
44 Correct 18 ms 3796 KB Output is correct
45 Correct 18 ms 3820 KB Output is correct
46 Correct 19 ms 3824 KB Output is correct
47 Correct 19 ms 3796 KB Output is correct
48 Correct 17 ms 3796 KB Output is correct
49 Correct 15 ms 3796 KB Output is correct
50 Correct 15 ms 3668 KB Output is correct
51 Correct 15 ms 3824 KB Output is correct
52 Correct 15 ms 3832 KB Output is correct
53 Correct 3 ms 1236 KB Output is correct
54 Correct 6 ms 1876 KB Output is correct
55 Correct 12 ms 2716 KB Output is correct
56 Correct 16 ms 3828 KB Output is correct
57 Correct 15 ms 3796 KB Output is correct
58 Correct 372 ms 133208 KB Output is correct
59 Correct 271 ms 133200 KB Output is correct
60 Correct 277 ms 132348 KB Output is correct
61 Correct 280 ms 133792 KB Output is correct
62 Correct 32 ms 12372 KB Output is correct
63 Correct 50 ms 20784 KB Output is correct
64 Correct 146 ms 66752 KB Output is correct
65 Correct 200 ms 95600 KB Output is correct
66 Correct 299 ms 131916 KB Output is correct
67 Correct 279 ms 131900 KB Output is correct
68 Correct 269 ms 133708 KB Output is correct
69 Correct 283 ms 134820 KB Output is correct
70 Correct 278 ms 134228 KB Output is correct
71 Correct 267 ms 130980 KB Output is correct
72 Correct 75 ms 34132 KB Output is correct
73 Correct 21 ms 10580 KB Output is correct