oj.uz

Submission #965034

# Submission time Handle Problem Language Result Execution time Memory
965034 2024-04-18T03:42:33 Z Alihan_8 Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
75 / 100
 500 ms 254068 KB 
#include <bits/stdc++.h>

using namespace std;

#define all(x) x.begin(), x.end()
#define ar array
#define pb push_back
#define ln '\n'
//#define int long long

using i64 = long long;

template <class F, class _S>
bool chmin(F &u, const _S &v){
    bool flag = false;
    if ( u > v ){
        u = v; flag |= true;
    }
    return flag;
}

template <class F, class _S>
bool chmax(F &u, const _S &v){
    bool flag = false;
    if ( u < v ){
        u = v; flag |= true;
    }
    return flag;
}

const int inf = 1e9 + 1;

const int N = 201;

int dp[N * 2][N][N][4];

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int n; cin >> n;
    string s; cin >> s;
    s = '#' + s;
    map <char,int> id;
    id['R'] = 0, id['G'] = 1, id['Y'] = 2;
    vector <ar<int,3>> pf(n + 1);
    for ( int i = 1; i <= n; i++ ){
        pf[i] = pf[i - 1];
        pf[i][id[s[i]]]++;
    }
    { // modifying
        int it = 0;
        for ( int j = 1; j <= 2; j++ ){
            if ( pf[n][j] >= pf[n][it] ){
                it = j;
            }
        }
        for ( int j = 0; j <= n; j++ ){
            swap(pf[j][it], pf[j][2]);
        }
    }
    for ( int i = 0; i <= n; i++ ){
        for ( int j = 0; j <= pf[n][0]; j++ ){
            for ( int k = 0; k <= pf[n][1]; k++ ){
                for ( int lst = 0; lst <= 3; lst++ ){
                    dp[i][j][k][lst] = inf;
                }
            }
        }
    }
    dp[0][0][0][3] = 0;
    for ( int i = 0; i < n; i++ ){
        for ( int j = 0; j <= pf[n][0]; j++ ){
            for ( int k = 0; k <= pf[n][1]; k++ ){
                for ( int lst = 0; lst < 3 + !i; lst++ ){
                    int &tmp = dp[i][j][k][lst];
                    if ( tmp == inf ){
                        continue;
                    }
                    int p = i - (j + k), it = 0;
                    vector <int> a(3), t = {j, k, p};
                    for ( auto u: t ){
                        int l = 0, r = n;
                        while ( l < r ){
                            int md = (l + r) >> 1;
                            if ( pf[md][it] < u + 1 ){
                                l = md + 1;
                            } else r = md;
                        }
                        if ( pf[r][it] < u + 1 ){
                            a[it] = -1;
                        } else{
                            for ( int q = 0; q < 3; q++ ){
                                if ( q != it ){
                                    a[it] += max(0, pf[l][q] - t[q]);
                                }
                            }
                        } it++;
                    }
                    if ( a[0] != -1 && lst != 0 ){
                        chmin(dp[i + 1][j + 1][k][0], tmp + a[0]);
                    }
                    if ( a[1] != -1 && lst != 1 ){
                        chmin(dp[i + 1][j][k + 1][1], tmp + a[1]);
                    }
                    if ( a[2] != -1 && lst != 2 ){
                        chmin(dp[i + 1][j][k][2], tmp + a[2]);
                    }
                }
            }
        }
    }
    int opt = inf;
    for ( int i = 0; i < 3; i++ ){
        chmin(opt, dp[n][pf[n][0]][pf[n][1]][i]);
    }
    if ( opt == inf ){
        opt = -1;
    }
    cout << opt;

    cout << '\n';
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 8540 KB Output is correct
5 Correct 2 ms 10588 KB Output is correct
6 Correct 2 ms 10588 KB Output is correct
7 Correct 2 ms 10588 KB Output is correct
8 Correct 2 ms 10588 KB Output is correct
9 Correct 2 ms 10588 KB Output is correct
10 Correct 1 ms 10600 KB Output is correct
11 Correct 2 ms 10588 KB Output is correct
12 Correct 2 ms 10588 KB Output is correct
13 Correct 2 ms 10584 KB Output is correct
14 Correct 1 ms 10588 KB Output is correct
15 Correct 1 ms 10588 KB Output is correct
16 Correct 2 ms 10588 KB Output is correct
17 Correct 1 ms 10588 KB Output is correct

Subtask #2
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 8540 KB Output is correct
5 Correct 2 ms 10588 KB Output is correct
6 Correct 2 ms 10588 KB Output is correct
7 Correct 2 ms 10588 KB Output is correct
8 Correct 2 ms 10588 KB Output is correct
9 Correct 2 ms 10588 KB Output is correct
10 Correct 1 ms 10600 KB Output is correct
11 Correct 2 ms 10588 KB Output is correct
12 Correct 2 ms 10588 KB Output is correct
13 Correct 2 ms 10584 KB Output is correct
14 Correct 1 ms 10588 KB Output is correct
15 Correct 1 ms 10588 KB Output is correct
16 Correct 2 ms 10588 KB Output is correct
17 Correct 1 ms 10588 KB Output is correct
18 Correct 5 ms 22620 KB Output is correct
19 Correct 5 ms 22620 KB Output is correct
20 Correct 6 ms 22620 KB Output is correct
21 Correct 5 ms 22876 KB Output is correct
22 Correct 5 ms 23128 KB Output is correct
23 Correct 5 ms 22620 KB Output is correct
24 Correct 4 ms 23796 KB Output is correct
25 Correct 3 ms 25180 KB Output is correct
26 Correct 3 ms 25072 KB Output is correct
27 Correct 4 ms 23896 KB Output is correct
28 Correct 5 ms 26460 KB Output is correct
29 Correct 5 ms 24668 KB Output is correct
30 Correct 6 ms 26200 KB Output is correct
31 Correct 5 ms 24156 KB Output is correct
32 Correct 5 ms 26204 KB Output is correct
33 Correct 4 ms 26716 KB Output is correct
34 Correct 4 ms 24668 KB Output is correct
35 Correct 6 ms 25948 KB Output is correct
36 Correct 5 ms 24664 KB Output is correct
37 Correct 5 ms 23896 KB Output is correct
38 Correct 5 ms 24156 KB Output is correct
39 Correct 5 ms 24664 KB Output is correct
40 Correct 3 ms 25180 KB Output is correct
41 Correct 4 ms 25692 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 91 ms 254068 KB Output is correct
3 Correct 6 ms 32088 KB Output is correct
4 Correct 85 ms 253868 KB Output is correct
5 Correct 82 ms 253988 KB Output is correct
6 Correct 78 ms 254040 KB Output is correct
7 Correct 76 ms 252520 KB Output is correct
8 Correct 81 ms 252384 KB Output is correct
9 Correct 77 ms 251880 KB Output is correct
10 Correct 76 ms 254032 KB Output is correct
11 Correct 78 ms 254032 KB Output is correct
12 Correct 25 ms 83096 KB Output is correct
13 Correct 39 ms 128848 KB Output is correct
14 Correct 52 ms 178496 KB Output is correct
15 Correct 76 ms 253008 KB Output is correct
16 Correct 80 ms 253164 KB Output is correct

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2644 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 8540 KB Output is correct
5 Correct 2 ms 10588 KB Output is correct
6 Correct 2 ms 10588 KB Output is correct
7 Correct 2 ms 10588 KB Output is correct
8 Correct 2 ms 10588 KB Output is correct
9 Correct 2 ms 10588 KB Output is correct
10 Correct 1 ms 10600 KB Output is correct
11 Correct 2 ms 10588 KB Output is correct
12 Correct 2 ms 10588 KB Output is correct
13 Correct 2 ms 10584 KB Output is correct
14 Correct 1 ms 10588 KB Output is correct
15 Correct 1 ms 10588 KB Output is correct
16 Correct 2 ms 10588 KB Output is correct
17 Correct 1 ms 10588 KB Output is correct
18 Correct 5 ms 22620 KB Output is correct
19 Correct 5 ms 22620 KB Output is correct
20 Correct 6 ms 22620 KB Output is correct
21 Correct 5 ms 22876 KB Output is correct
22 Correct 5 ms 23128 KB Output is correct
23 Correct 5 ms 22620 KB Output is correct
24 Correct 4 ms 23796 KB Output is correct
25 Correct 3 ms 25180 KB Output is correct
26 Correct 3 ms 25072 KB Output is correct
27 Correct 4 ms 23896 KB Output is correct
28 Correct 5 ms 26460 KB Output is correct
29 Correct 5 ms 24668 KB Output is correct
30 Correct 6 ms 26200 KB Output is correct
31 Correct 5 ms 24156 KB Output is correct
32 Correct 5 ms 26204 KB Output is correct
33 Correct 4 ms 26716 KB Output is correct
34 Correct 4 ms 24668 KB Output is correct
35 Correct 6 ms 25948 KB Output is correct
36 Correct 5 ms 24664 KB Output is correct
37 Correct 5 ms 23896 KB Output is correct
38 Correct 5 ms 24156 KB Output is correct
39 Correct 5 ms 24664 KB Output is correct
40 Correct 3 ms 25180 KB Output is correct
41 Correct 4 ms 25692 KB Output is correct
42 Correct 1 ms 2392 KB Output is correct
43 Correct 91 ms 254068 KB Output is correct
44 Correct 6 ms 32088 KB Output is correct
45 Correct 85 ms 253868 KB Output is correct
46 Correct 82 ms 253988 KB Output is correct
47 Correct 78 ms 254040 KB Output is correct
48 Correct 76 ms 252520 KB Output is correct
49 Correct 81 ms 252384 KB Output is correct
50 Correct 77 ms 251880 KB Output is correct
51 Correct 76 ms 254032 KB Output is correct
52 Correct 78 ms 254032 KB Output is correct
53 Correct 25 ms 83096 KB Output is correct
54 Correct 39 ms 128848 KB Output is correct
55 Correct 52 ms 178496 KB Output is correct
56 Correct 76 ms 253008 KB Output is correct
57 Correct 80 ms 253164 KB Output is correct
58 Execution timed out 534 ms 169028 KB Time limit exceeded
59 Halted 0 ms 0 KB -