oj.uz

Submission #642334

# Submission time Handle Problem Language Result Execution time Memory
642334 2022-09-19T08:52:58 Z danikoynov Growing Vegetable is Fun 3 (JOI19_ho_t3) C++14
100 / 100
 109 ms 162992 KB 
/**
 ____ ____ ____ ____ ____ ____
||l |||e |||i |||n |||a |||d ||
||__|||__|||__|||__|||__|||__||
|/__\|/__\|/__\|/__\|/__\|/__\|

**/

#include<bits/stdc++.h>
#define endl '\n'

using namespace std;
typedef long long ll;

void speed()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
}

const int maxn = 410, inf = 1e9;

int n, a[maxn], dp[maxn][maxn][maxn][3];
string s;
vector < int > pos[3];
pair < int, int > prf[3][maxn];
void solve()
{
    cin >> n >> s;
    for (int i = 0; i < n; i ++)
    {
        if (s[i] == 'R')
            a[i + 1] = 0;
        else if (s[i] == 'G')
            a[i + 1] = 1;
        else if (s[i] == 'Y')
            a[i + 1] = 2;
    }

    for (int i = 1; i <= n; i ++)
        pos[a[i]].push_back(i);

    for (int i = 0; i <= pos[0].size(); i ++)
        for (int j = 0; j <= pos[1].size(); j ++)
            for (int k = 0; k <= pos[2].size(); k ++)
                dp[i][j][k][0] = dp[i][j][k][1] = dp[i][j][k][2] = inf;

    dp[0][0][0][0] = dp[0][0][0][1] = dp[0][0][0][2] = 0;

    for (int i = 0; i < pos[0].size(); i ++)
    {
        int f1 = 0;
        while(f1 < pos[1].size() && pos[0][i] > pos[1][f1])
            f1 ++;

        int f2 = 0;
        while(f2 < pos[2].size() && pos[0][i] > pos[2][f2])
            f2 ++;
            ///cout << i << " " << f1 << " " << f2 << endl;

        prf[0][i] = {f1, f2};
    }

    for (int i = 0; i < pos[1].size(); i ++)
    {
        int f1 = 0;
        while(f1 < pos[0].size() && pos[1][i] > pos[0][f1])
            f1 ++;

        int f2 = 0;
        while(f2 < pos[2].size() && pos[1][i] > pos[2][f2])
            f2 ++;

        prf[1][i] = {f1, f2};
    }


    for (int i = 0; i < pos[2].size(); i ++)
    {
        int f1 = 0;
        while(f1 < pos[0].size() && pos[2][i] > pos[0][f1])
            f1 ++;

        int f2 = 0;
        while(f2 < pos[1].size() && pos[2][i] > pos[1][f2])
            f2 ++;

        prf[2][i] = {f1, f2};
    }
    for (int p = 0; p < n; p ++)
    {
        for (int i = 0; i <= min(p, (int)pos[0].size()); i ++)
            for (int j = 0; j <= min(p - i, (int)(pos[1].size())); j ++)
            {
                int k = p - i - j;
                if (k > pos[2].size())
                    continue;

                ///cout << i << " " << j << " " << k << " " << dp[i][j][k][0] << " " << dp[i][j][k][1] << " " << dp[i][j][k][2] << endl;
                if (i < (int)pos[0].size())
                {
                    int add0 = min(dp[i][j][k][1], dp[i][j][k][2]);
                    int sd = (pos[0][i] - (p + 1))
                        + max(0, j - prf[0][i].first)
                        + max(0, k - prf[0][i].second);
                    add0 = add0 + max(0, sd);
                    dp[i + 1][j][k][0] = min(dp[i + 1][j][k][0], add0);
                }

                if (j < (int)pos[1].size())
                {
                    ///cout << "here" << endl;
                    int add1 = min(dp[i][j][k][0], dp[i][j][k][2]);
                    int sd = (pos[1][j] - (p + 1))
                        + max(0, i - prf[1][j].first)
                        + max(0, k - prf[1][j].second);
                    /**for (int f = 0; f < i; f ++)
                        if (pos[0][f] > pos[1][j])
                        sd ++;
                    for (int f = 0; f < k; f ++)
                        if (pos[2][f] > pos[1][j])
                        sd ++;*/
                    add1 = add1 + max(0, sd);
                    dp[i][j + 1][k][1] = min(dp[i][j + 1][k][1], add1);
                }

                if (k < (int)pos[2].size())
                {
                    int add2 = min(dp[i][j][k][0], dp[i][j][k][1]);
                    int sd = pos[2][k] - (p + 1)
                        + max(0, i - prf[2][k].first)
                        + max(0, j - prf[2][k].second);

                    /**for (int f = 0; f < i; f ++)
                        if (pos[0][f] > pos[2][k])
                        sd ++;
                    for (int f = 0; f < j; f ++)
                        if (pos[1][f] > pos[2][k])
                        sd ++;*/
                    add2 = add2 + max(0, sd);
                    dp[i][j][k + 1][2] = min(dp[i][j][k + 1][2], add2);
                }
            }
    }
    ///cout << dp[1][1][0][1] << endl;


    int ans = inf;
    for (int last = 0; last < 3; last ++)
        ans = min(ans, dp[pos[0].size()][pos[1].size()][pos[2].size()][last]);

    if (ans >= inf)
        cout << -1 << endl;
    else
        cout << ans << endl;

}

int main()
{
    solve();
    return 0;
}

/**
15
YYYRRRRRGGGGGGG
*/

Compilation message

joi2019_ho_t3.cpp: In function 'void solve()':
joi2019_ho_t3.cpp:44:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |     for (int i = 0; i <= pos[0].size(); i ++)
      |                     ~~^~~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:45:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |         for (int j = 0; j <= pos[1].size(); j ++)
      |                         ~~^~~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:46:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |             for (int k = 0; k <= pos[2].size(); k ++)
      |                             ~~^~~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:51:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   51 |     for (int i = 0; i < pos[0].size(); i ++)
      |                     ~~^~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:54:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |         while(f1 < pos[1].size() && pos[0][i] > pos[1][f1])
      |               ~~~^~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:58:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |         while(f2 < pos[2].size() && pos[0][i] > pos[2][f2])
      |               ~~~^~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:65:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   65 |     for (int i = 0; i < pos[1].size(); i ++)
      |                     ~~^~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:68:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   68 |         while(f1 < pos[0].size() && pos[1][i] > pos[0][f1])
      |               ~~~^~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:72:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   72 |         while(f2 < pos[2].size() && pos[1][i] > pos[2][f2])
      |               ~~~^~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:79:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   79 |     for (int i = 0; i < pos[2].size(); i ++)
      |                     ~~^~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:82:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   82 |         while(f1 < pos[0].size() && pos[2][i] > pos[0][f1])
      |               ~~~^~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:86:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   86 |         while(f2 < pos[1].size() && pos[2][i] > pos[1][f2])
      |               ~~~^~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:97:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   97 |                 if (k > pos[2].size())
      |                     ~~^~~~~~~~~~~~~~~

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 1 ms 340 KB Output is correct
5 Correct 1 ms 440 KB Output is correct
6 Correct 0 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 340 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 1 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 1 ms 340 KB Output is correct
5 Correct 1 ms 440 KB Output is correct
6 Correct 0 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 340 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 1 ms 212 KB Output is correct
18 Correct 1 ms 2260 KB Output is correct
19 Correct 1 ms 1848 KB Output is correct
20 Correct 1 ms 2260 KB Output is correct
21 Correct 2 ms 2356 KB Output is correct
22 Correct 1 ms 1592 KB Output is correct
23 Correct 2 ms 2100 KB Output is correct
24 Correct 1 ms 1620 KB Output is correct
25 Correct 2 ms 3896 KB Output is correct
26 Correct 2 ms 4152 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 2132 KB Output is correct
30 Correct 1 ms 2260 KB Output is correct
31 Correct 3 ms 2004 KB Output is correct
32 Correct 2 ms 2352 KB Output is correct
33 Correct 2 ms 3796 KB Output is correct
34 Correct 2 ms 3540 KB Output is correct
35 Correct 1 ms 2644 KB Output is correct
36 Correct 1 ms 1848 KB Output is correct
37 Correct 1 ms 1620 KB Output is correct
38 Correct 1 ms 2132 KB Output is correct
39 Correct 1 ms 2232 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 2 ms 2108 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 70 ms 162900 KB Output is correct
3 Correct 74 ms 162124 KB Output is correct
4 Correct 71 ms 162940 KB Output is correct
5 Correct 109 ms 162876 KB Output is correct
6 Correct 71 ms 162928 KB Output is correct
7 Correct 78 ms 162120 KB Output is correct
8 Correct 79 ms 162112 KB Output is correct
9 Correct 70 ms 161360 KB Output is correct
10 Correct 77 ms 162984 KB Output is correct
11 Correct 72 ms 162920 KB Output is correct
12 Correct 29 ms 44024 KB Output is correct
13 Correct 37 ms 77080 KB Output is correct
14 Correct 45 ms 111240 KB Output is correct
15 Correct 71 ms 162992 KB Output is correct
16 Correct 74 ms 162988 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 1 ms 340 KB Output is correct
5 Correct 1 ms 440 KB Output is correct
6 Correct 0 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 340 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 1 ms 212 KB Output is correct
18 Correct 1 ms 2260 KB Output is correct
19 Correct 1 ms 1848 KB Output is correct
20 Correct 1 ms 2260 KB Output is correct
21 Correct 2 ms 2356 KB Output is correct
22 Correct 1 ms 1592 KB Output is correct
23 Correct 2 ms 2100 KB Output is correct
24 Correct 1 ms 1620 KB Output is correct
25 Correct 2 ms 3896 KB Output is correct
26 Correct 2 ms 4152 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 2132 KB Output is correct
30 Correct 1 ms 2260 KB Output is correct
31 Correct 3 ms 2004 KB Output is correct
32 Correct 2 ms 2352 KB Output is correct
33 Correct 2 ms 3796 KB Output is correct
34 Correct 2 ms 3540 KB Output is correct
35 Correct 1 ms 2644 KB Output is correct
36 Correct 1 ms 1848 KB Output is correct
37 Correct 1 ms 1620 KB Output is correct
38 Correct 1 ms 2132 KB Output is correct
39 Correct 1 ms 2232 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 2 ms 2108 KB Output is correct
42 Correct 0 ms 340 KB Output is correct
43 Correct 70 ms 162900 KB Output is correct
44 Correct 74 ms 162124 KB Output is correct
45 Correct 71 ms 162940 KB Output is correct
46 Correct 109 ms 162876 KB Output is correct
47 Correct 71 ms 162928 KB Output is correct
48 Correct 78 ms 162120 KB Output is correct
49 Correct 79 ms 162112 KB Output is correct
50 Correct 70 ms 161360 KB Output is correct
51 Correct 77 ms 162984 KB Output is correct
52 Correct 72 ms 162920 KB Output is correct
53 Correct 29 ms 44024 KB Output is correct
54 Correct 37 ms 77080 KB Output is correct
55 Correct 45 ms 111240 KB Output is correct
56 Correct 71 ms 162992 KB Output is correct
57 Correct 74 ms 162988 KB Output is correct
58 Correct 62 ms 77104 KB Output is correct
59 Correct 74 ms 97772 KB Output is correct
60 Correct 94 ms 88804 KB Output is correct
61 Correct 73 ms 85820 KB Output is correct
62 Correct 74 ms 160744 KB Output is correct
63 Correct 68 ms 160120 KB Output is correct
64 Correct 83 ms 150052 KB Output is correct
65 Correct 77 ms 138444 KB Output is correct
66 Correct 86 ms 87144 KB Output is correct
67 Correct 67 ms 83896 KB Output is correct
68 Correct 67 ms 89668 KB Output is correct
69 Correct 74 ms 86516 KB Output is correct
70 Correct 67 ms 93696 KB Output is correct
71 Correct 81 ms 84984 KB Output is correct
72 Correct 30 ms 42040 KB Output is correct
73 Correct 3 ms 2868 KB Output is correct