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Submission #481452

# Submission time Handle Problem Language Result Execution time Memory
481452 2021-10-21T00:37:28 Z Lobo Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
100 / 100
 82 ms 162884 KB 
#include <bits/stdc++.h>
 
using namespace std;

const long long INFll = (long long) 1e18 + 10;
const int INFii = (int) 1e9 + 10;
typedef long long ll;
typedef int ii;
typedef long double dbl;
#define endl '\n'
#define sc second
#define fr first
#define mp make_pair
#define pb push_back
#define all(x) x.begin(), x.end()

#define maxn 401

ii n, dp[maxn][maxn][maxn][4];
ii qtd1, qtd2, qtd3;
ii pos1[maxn], pos2[maxn], pos3[maxn];
ii cnt1[maxn], cnt2[maxn], cnt3[maxn];
string s;

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

    //freopen("in.in", "r", stdin);
    //freopen("out.out", "w", stdout);

    cin >> n >> s;

    for(ii i = 1; i <= n; i++) {
        cnt1[i] = cnt1[i-1];
        cnt2[i] = cnt2[i-1];
        cnt3[i] = cnt3[i-1];

        if(s[i-1] == 'R') {
            cnt1[i]++;
            pos1[++qtd1] = i;
        }
        if(s[i-1] == 'G') {
            cnt2[i]++;
            pos2[++qtd2] = i;
        }
        if(s[i-1] == 'Y') {
            cnt3[i]++;
            pos3[++qtd3] = i;
        }
    }

    if(qtd1 > (n+1)/2 || qtd2 > (n+1)/2 || qtd3 > (n+1)/2) {
        cout << -1 << endl;
        return 0;
    }

    for(ii c1 = qtd1; c1 >= 0; c1--) {
        for(ii c2 = qtd2; c2 >= 0; c2--) {
            for(ii c3 = qtd3; c3 >= 0; c3--) {
                for(ii ant = 1; ant <= 3; ant++) {
                    if(c1 == qtd1 && c2 == qtd2 && c3 == qtd3) {
                        dp[c1][c2][c3][ant] = 0;
                        continue;
                    }

                    ii ans = INFii;

                    if(c1 != qtd1 && ant != 1) {
                        ans = min(ans, dp[c1+1][c2][c3][1] + max(0,cnt2[pos2[c2]]-cnt2[pos1[c1+1]]) + max(0,cnt3[pos3[c3]]-cnt3[pos1[c1+1]]));
                    }

                    if(c2 != qtd2 && ant != 2) {
                        ans = min(ans, dp[c1][c2+1][c3][2] + max(0,cnt1[pos1[c1]]-cnt1[pos2[c2+1]]) + max(0,cnt3[pos3[c3]]-cnt3[pos2[c2+1]]));
                    }

                    if(c3 != qtd3 && ant != 3) {
                        ans = min(ans, dp[c1][c2][c3+1][3] + max(0,cnt2[pos2[c2]]-cnt2[pos3[c3+1]]) + max(0,cnt1[pos1[c1]]-cnt1[pos3[c3+1]]));
                    }

                    dp[c1][c2][c3][ant] = ans;
                }
            }
        }
    }

    cout << min({dp[0][0][0][1],dp[0][0][0][2],dp[0][0][0][3]}) << endl;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 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 460 KB Output is correct
7 Correct 0 ms 444 KB Output is correct
8 Correct 1 ms 460 KB Output is correct
9 Correct 1 ms 576 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 460 KB Output is correct
12 Correct 0 ms 460 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 460 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 332 KB Output is correct

Subtask #2
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 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 460 KB Output is correct
7 Correct 0 ms 444 KB Output is correct
8 Correct 1 ms 460 KB Output is correct
9 Correct 1 ms 576 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 460 KB Output is correct
12 Correct 0 ms 460 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 460 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 2 ms 2368 KB Output is correct
19 Correct 1 ms 1868 KB Output is correct
20 Correct 1 ms 2252 KB Output is correct
21 Correct 1 ms 2380 KB Output is correct
22 Correct 1 ms 1740 KB Output is correct
23 Correct 1 ms 2124 KB Output is correct
24 Correct 1 ms 1612 KB Output is correct
25 Correct 0 ms 204 KB Output is correct
26 Correct 0 ms 204 KB Output is correct
27 Correct 2 ms 3020 KB Output is correct
28 Correct 1 ms 2380 KB Output is correct
29 Correct 1 ms 2252 KB Output is correct
30 Correct 1 ms 2252 KB Output is correct
31 Correct 1 ms 1996 KB Output is correct
32 Correct 1 ms 2380 KB Output is correct
33 Correct 0 ms 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 2636 KB Output is correct
36 Correct 2 ms 1868 KB Output is correct
37 Correct 1 ms 1740 KB Output is correct
38 Correct 1 ms 2124 KB Output is correct
39 Correct 2 ms 2380 KB Output is correct
40 Correct 1 ms 204 KB Output is correct
41 Correct 1 ms 204 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 65 ms 162852 KB Output is correct
3 Correct 61 ms 162060 KB Output is correct
4 Correct 56 ms 162884 KB Output is correct
5 Correct 56 ms 162884 KB Output is correct
6 Correct 60 ms 162792 KB Output is correct
7 Correct 58 ms 162076 KB Output is correct
8 Correct 64 ms 162004 KB Output is correct
9 Correct 70 ms 161248 KB Output is correct
10 Correct 56 ms 162784 KB Output is correct
11 Correct 55 ms 162772 KB Output is correct
12 Correct 15 ms 44064 KB Output is correct
13 Correct 25 ms 77068 KB Output is correct
14 Correct 36 ms 111296 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct

Subtask #4
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 0 ms 332 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 460 KB Output is correct
7 Correct 0 ms 444 KB Output is correct
8 Correct 1 ms 460 KB Output is correct
9 Correct 1 ms 576 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 460 KB Output is correct
12 Correct 0 ms 460 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 460 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 2 ms 2368 KB Output is correct
19 Correct 1 ms 1868 KB Output is correct
20 Correct 1 ms 2252 KB Output is correct
21 Correct 1 ms 2380 KB Output is correct
22 Correct 1 ms 1740 KB Output is correct
23 Correct 1 ms 2124 KB Output is correct
24 Correct 1 ms 1612 KB Output is correct
25 Correct 0 ms 204 KB Output is correct
26 Correct 0 ms 204 KB Output is correct
27 Correct 2 ms 3020 KB Output is correct
28 Correct 1 ms 2380 KB Output is correct
29 Correct 1 ms 2252 KB Output is correct
30 Correct 1 ms 2252 KB Output is correct
31 Correct 1 ms 1996 KB Output is correct
32 Correct 1 ms 2380 KB Output is correct
33 Correct 0 ms 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 2636 KB Output is correct
36 Correct 2 ms 1868 KB Output is correct
37 Correct 1 ms 1740 KB Output is correct
38 Correct 1 ms 2124 KB Output is correct
39 Correct 2 ms 2380 KB Output is correct
40 Correct 1 ms 204 KB Output is correct
41 Correct 1 ms 204 KB Output is correct
42 Correct 0 ms 332 KB Output is correct
43 Correct 65 ms 162852 KB Output is correct
44 Correct 61 ms 162060 KB Output is correct
45 Correct 56 ms 162884 KB Output is correct
46 Correct 56 ms 162884 KB Output is correct
47 Correct 60 ms 162792 KB Output is correct
48 Correct 58 ms 162076 KB Output is correct
49 Correct 64 ms 162004 KB Output is correct
50 Correct 70 ms 161248 KB Output is correct
51 Correct 56 ms 162784 KB Output is correct
52 Correct 55 ms 162772 KB Output is correct
53 Correct 15 ms 44064 KB Output is correct
54 Correct 25 ms 77068 KB Output is correct
55 Correct 36 ms 111296 KB Output is correct
56 Correct 0 ms 204 KB Output is correct
57 Correct 0 ms 204 KB Output is correct
58 Correct 77 ms 100332 KB Output is correct
59 Correct 81 ms 118684 KB Output is correct
60 Correct 77 ms 111096 KB Output is correct
61 Correct 77 ms 108940 KB Output is correct
62 Correct 0 ms 332 KB Output is correct
63 Correct 62 ms 161324 KB Output is correct
64 Correct 73 ms 154564 KB Output is correct
65 Correct 82 ms 145144 KB Output is correct
66 Correct 76 ms 109500 KB Output is correct
67 Correct 78 ms 106616 KB Output is correct
68 Correct 77 ms 112224 KB Output is correct
69 Correct 78 ms 109680 KB Output is correct
70 Correct 80 ms 115544 KB Output is correct
71 Correct 79 ms 107512 KB Output is correct
72 Correct 0 ms 204 KB Output is correct
73 Correct 0 ms 332 KB Output is correct