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Submission #788659

# Submission time Handle Problem Language Result Execution time Memory
788659 2023-07-20T12:57:07 Z tvladm2009 Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
100 / 100
 66 ms 162984 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
const int N = (int) 4e2 + 7;
const int INF = (int) 1e9;
int n;
int a[N];
int cnt[3][N][3];
int dp[N][N][N][3];
string s;

int decode(char ch) {
  if (ch == 'R') {
    return 0;
  } else if (ch == 'G') {
    return 1;
  } else if (ch == 'Y') {
    return 2;
  }
  assert(0);
}

signed main() {
  ios::sync_with_stdio(0); cin.tie(0);

  // freopen("input", "r", stdin);

  cin >> n >> s;
  for (int i = 1; i <= n; i++) {
    a[i] = decode(s[i - 1]);
  }
  int cnta = 0, cntb = 0, cntc = 0;
  for (int i = 1; i <= n; i++) {
    if (a[i] == 0) {
      cnta++;
      cnt[0][cnta][1] = cntb;
      cnt[0][cnta][2] = cntc;
    } else if (a[i] == 1) {
      cntb++;
      cnt[1][cntb][0] = cnta;
      cnt[1][cntb][2] = cntc;
    } else {
      cntc++;
      cnt[2][cntc][0] = cnta;
      cnt[2][cntc][1] = cntb;
    }
  }
  for (int a = 0; a <= cnta; a++) {
    for (int b = 0; b <= cntb; b++) {
      for (int c = 0; c <= cntc; c++) {
        dp[a][b][c][0] = INF;
        dp[a][b][c][1] = INF;
        dp[a][b][c][2] = INF;
      }
    }
  }
  dp[0][0][0][0] = 0;
  dp[0][0][0][1] = 0;
  dp[0][0][0][2] = 0;
  for (int a = 0; a <= cnta; a++) {
    for (int b = 0; b <= cntb; b++) {
      for (int c = 0; c <= cntc; c++) {
        if (a < cnta) {
          dp[a + 1][b][c][0] = min(dp[a + 1][b][c][0], min(dp[a][b][c][1], dp[a][b][c][2]) + abs(b - cnt[0][a + 1][1]) + abs(c - cnt[0][a + 1][2]));
        }
        if (b < cntb) {
          dp[a][b + 1][c][1] = min(dp[a][b + 1][c][1], min(dp[a][b][c][0], dp[a][b][c][2]) + abs(a - cnt[1][b + 1][0]) + abs(c - cnt[1][b + 1][2]));
        }
        if (c < cntc) {
          dp[a][b][c + 1][2] = min(dp[a][b][c + 1][2], min(dp[a][b][c][0], dp[a][b][c][1]) + abs(a - cnt[2][c + 1][0]) + abs(b - cnt[2][c + 1][1]));
        }
      }
    }
  }
  int sol = INF;
  sol = min(sol, dp[cnta][cntb][cntc][0]);
  sol = min(sol, dp[cnta][cntb][cntc][1]);
  sol = min(sol, dp[cnta][cntb][cntc][2]);
  if (sol == INF) {
    cout << "-1\n";
    return 0;
  }
  cout << sol / 2;
  return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 596 KB Output is correct
10 Correct 1 ms 596 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 328 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 0 ms 340 KB Output is correct

Subtask #2
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 596 KB Output is correct
10 Correct 1 ms 596 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 328 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 1 ms 2244 KB Output is correct
19 Correct 1 ms 1876 KB Output is correct
20 Correct 1 ms 2260 KB Output is correct
21 Correct 2 ms 2372 KB Output is correct
22 Correct 1 ms 1620 KB Output is correct
23 Correct 1 ms 2132 KB Output is correct
24 Correct 1 ms 1620 KB Output is correct
25 Correct 2 ms 3924 KB Output is correct
26 Correct 2 ms 4180 KB Output is correct
27 Correct 2 ms 3028 KB Output is correct
28 Correct 1 ms 2260 KB Output is correct
29 Correct 1 ms 2260 KB Output is correct
30 Correct 1 ms 2248 KB Output is correct
31 Correct 1 ms 2020 KB Output is correct
32 Correct 1 ms 2388 KB Output is correct
33 Correct 2 ms 3796 KB Output is correct
34 Correct 2 ms 3540 KB Output is correct
35 Correct 2 ms 2628 KB Output is correct
36 Correct 1 ms 1864 KB Output is correct
37 Correct 1 ms 1748 KB Output is correct
38 Correct 1 ms 2132 KB Output is correct
39 Correct 1 ms 2260 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 2 ms 2132 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 50 ms 162876 KB Output is correct
3 Correct 50 ms 162132 KB Output is correct
4 Correct 51 ms 162916 KB Output is correct
5 Correct 51 ms 162876 KB Output is correct
6 Correct 50 ms 162892 KB Output is correct
7 Correct 59 ms 162264 KB Output is correct
8 Correct 52 ms 162164 KB Output is correct
9 Correct 52 ms 161356 KB Output is correct
10 Correct 53 ms 162868 KB Output is correct
11 Correct 52 ms 162976 KB Output is correct
12 Correct 17 ms 43984 KB Output is correct
13 Correct 29 ms 77064 KB Output is correct
14 Correct 40 ms 111316 KB Output is correct
15 Correct 57 ms 162984 KB Output is correct
16 Correct 53 ms 162904 KB Output is correct

Subtask #4
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 1 ms 468 KB Output is correct
9 Correct 1 ms 596 KB Output is correct
10 Correct 1 ms 596 KB Output is correct
11 Correct 1 ms 468 KB Output is correct
12 Correct 1 ms 468 KB Output is correct
13 Correct 1 ms 328 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 468 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 1 ms 2244 KB Output is correct
19 Correct 1 ms 1876 KB Output is correct
20 Correct 1 ms 2260 KB Output is correct
21 Correct 2 ms 2372 KB Output is correct
22 Correct 1 ms 1620 KB Output is correct
23 Correct 1 ms 2132 KB Output is correct
24 Correct 1 ms 1620 KB Output is correct
25 Correct 2 ms 3924 KB Output is correct
26 Correct 2 ms 4180 KB Output is correct
27 Correct 2 ms 3028 KB Output is correct
28 Correct 1 ms 2260 KB Output is correct
29 Correct 1 ms 2260 KB Output is correct
30 Correct 1 ms 2248 KB Output is correct
31 Correct 1 ms 2020 KB Output is correct
32 Correct 1 ms 2388 KB Output is correct
33 Correct 2 ms 3796 KB Output is correct
34 Correct 2 ms 3540 KB Output is correct
35 Correct 2 ms 2628 KB Output is correct
36 Correct 1 ms 1864 KB Output is correct
37 Correct 1 ms 1748 KB Output is correct
38 Correct 1 ms 2132 KB Output is correct
39 Correct 1 ms 2260 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 2 ms 2132 KB Output is correct
42 Correct 0 ms 340 KB Output is correct
43 Correct 50 ms 162876 KB Output is correct
44 Correct 50 ms 162132 KB Output is correct
45 Correct 51 ms 162916 KB Output is correct
46 Correct 51 ms 162876 KB Output is correct
47 Correct 50 ms 162892 KB Output is correct
48 Correct 59 ms 162264 KB Output is correct
49 Correct 52 ms 162164 KB Output is correct
50 Correct 52 ms 161356 KB Output is correct
51 Correct 53 ms 162868 KB Output is correct
52 Correct 52 ms 162976 KB Output is correct
53 Correct 17 ms 43984 KB Output is correct
54 Correct 29 ms 77064 KB Output is correct
55 Correct 40 ms 111316 KB Output is correct
56 Correct 57 ms 162984 KB Output is correct
57 Correct 53 ms 162904 KB Output is correct
58 Correct 46 ms 76580 KB Output is correct
59 Correct 53 ms 97068 KB Output is correct
60 Correct 52 ms 88260 KB Output is correct
61 Correct 49 ms 85268 KB Output is correct
62 Correct 57 ms 160644 KB Output is correct
63 Correct 57 ms 160196 KB Output is correct
64 Correct 65 ms 150072 KB Output is correct
65 Correct 66 ms 138576 KB Output is correct
66 Correct 52 ms 86544 KB Output is correct
67 Correct 58 ms 83260 KB Output is correct
68 Correct 61 ms 89096 KB Output is correct
69 Correct 50 ms 85892 KB Output is correct
70 Correct 51 ms 92952 KB Output is correct
71 Correct 51 ms 84376 KB Output is correct
72 Correct 22 ms 41804 KB Output is correct
73 Correct 2 ms 2900 KB Output is correct