oj.uz

Submission #167297

# Submission time Handle Problem Language Result Execution time Memory
167297 2019-12-07T08:35:02 Z combi1k1 Growing Vegetable is Fun 3 (JOI19_ho_t3) C++14
5 / 100
 97 ms 95864 KB 
#include<bits/stdc++.h>

using namespace std;

#define sz(x)   (int)x.size()

const int   N   = 201;

int f[N][N][N][3];

int main()  {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    int n;      cin >> n;
    string s;   cin >> s;

    vector<int> pos[3];
    vector<int> ord[3];

    for(int i = 0 ; i < n ; ++i)    {
        if (s[i] == 'R')    pos[0].push_back(i + 1);
        if (s[i] == 'G')    pos[1].push_back(i + 1);
        if (s[i] == 'Y')    pos[2].push_back(i + 1);
    }

    if (sz(pos[0]) > (n + 1) / 2)   return  0 * puts("-1");
    if (sz(pos[1]) > (n + 1) / 2)   return  0 * puts("-1");
    if (sz(pos[2]) > (n + 1) / 2)   return  0 * puts("-1");

    memset(f,0x3f,sizeof f);

    if (sz(pos[0]))     f[1][0][0][0] = pos[0][0] - 1;
    if (sz(pos[1]))     f[0][1][0][1] = pos[1][0] - 1;
    if (sz(pos[2]))     f[0][0][1][2] = pos[2][0] - 1;

    for(int i = 0 ; i < 3 ; ++i)    {

        for(int j = 0 ; j <= n ; ++j)
        ord[i].push_back(upper_bound(pos[i].begin(),pos[i].end(),j) - pos[i].begin());
        pos[i].insert(pos[i].begin(),0);
    }

    for(int a = 0 ; a < sz(pos[0]) ; ++a)
    for(int b = 0 ; b < sz(pos[1]) ; ++b)
    for(int c = 0 ; c < sz(pos[2]) ; ++c)    {
        int P = a + b + c;
        if (P < 2)  continue;

        for(int x = 0 ; x < 3 ; ++x)    {
            int na = a - (x == 0);
            int nb = b - (x == 1);
            int nc = c - (x == 2);

            if (na < 0) continue;
            if (nb < 0) continue;
            if (nc < 0) continue;

            int real_pos;

            if (x == 0) real_pos = pos[0][a] + max(0,b - ord[1][pos[0][a]]) + max(0,c - ord[2][pos[0][a]]);
            if (x == 1) real_pos = pos[1][b] + max(0,a - ord[0][pos[1][b]]) + max(0,c - ord[2][pos[1][b]]);
            if (x == 2) real_pos = pos[2][c] + max(0,a - ord[0][pos[2][c]]) + max(0,b - ord[1][pos[2][c]]);

            f[a][b][c][x] = min(f[na][nb][nc][0 + (x == 0)],f[na][nb][nc][2 - (x == 2)]) + abs(real_pos - P);
        }
    }

    int ans = 0x3f;

    ans = min(ans,f[pos[0].size() - 1][pos[1].size() - 1][pos[2].size() - 1][0]);
    ans = min(ans,f[pos[0].size() - 1][pos[1].size() - 1][pos[2].size() - 1][1]);
    ans = min(ans,f[pos[0].size() - 1][pos[1].size() - 1][pos[2].size() - 1][2]);

    cout << ans << endl;
}

Compilation message

joi2019_ho_t3.cpp: In function 'int main()':
joi2019_ho_t3.cpp:65:105: warning: 'real_pos' may be used uninitialized in this function [-Wmaybe-uninitialized]
             f[a][b][c][x] = min(f[na][nb][nc][0 + (x == 0)],f[na][nb][nc][2 - (x == 2)]) + abs(real_pos - P);
                                                                                                ~~~~~~~~~^~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 84 ms 95736 KB Output is correct
2 Correct 85 ms 95736 KB Output is correct
3 Correct 84 ms 95736 KB Output is correct
4 Correct 88 ms 95736 KB Output is correct
5 Correct 84 ms 95608 KB Output is correct
6 Correct 85 ms 95688 KB Output is correct
7 Correct 85 ms 95836 KB Output is correct
8 Correct 84 ms 95640 KB Output is correct
9 Correct 88 ms 95624 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 89 ms 95776 KB Output is correct
12 Correct 87 ms 95608 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 87 ms 95672 KB Output is correct
15 Correct 86 ms 95736 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct

Subtask #2
0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 84 ms 95736 KB Output is correct
2 Correct 85 ms 95736 KB Output is correct
3 Correct 84 ms 95736 KB Output is correct
4 Correct 88 ms 95736 KB Output is correct
5 Correct 84 ms 95608 KB Output is correct
6 Correct 85 ms 95688 KB Output is correct
7 Correct 85 ms 95836 KB Output is correct
8 Correct 84 ms 95640 KB Output is correct
9 Correct 88 ms 95624 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 89 ms 95776 KB Output is correct
12 Correct 87 ms 95608 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 87 ms 95672 KB Output is correct
15 Correct 86 ms 95736 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 86 ms 95856 KB Output is correct
19 Correct 86 ms 95608 KB Output is correct
20 Correct 86 ms 95652 KB Output is correct
21 Correct 97 ms 95864 KB Output is correct
22 Correct 84 ms 95736 KB Output is correct
23 Correct 89 ms 95668 KB Output is correct
24 Correct 81 ms 95736 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Incorrect 87 ms 95608 KB Output isn't correct
28 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 89 ms 95684 KB Output is correct
2 Incorrect 91 ms 95724 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 84 ms 95736 KB Output is correct
2 Correct 85 ms 95736 KB Output is correct
3 Correct 84 ms 95736 KB Output is correct
4 Correct 88 ms 95736 KB Output is correct
5 Correct 84 ms 95608 KB Output is correct
6 Correct 85 ms 95688 KB Output is correct
7 Correct 85 ms 95836 KB Output is correct
8 Correct 84 ms 95640 KB Output is correct
9 Correct 88 ms 95624 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 89 ms 95776 KB Output is correct
12 Correct 87 ms 95608 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 87 ms 95672 KB Output is correct
15 Correct 86 ms 95736 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 86 ms 95856 KB Output is correct
19 Correct 86 ms 95608 KB Output is correct
20 Correct 86 ms 95652 KB Output is correct
21 Correct 97 ms 95864 KB Output is correct
22 Correct 84 ms 95736 KB Output is correct
23 Correct 89 ms 95668 KB Output is correct
24 Correct 81 ms 95736 KB Output is correct
25 Correct 2 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Incorrect 87 ms 95608 KB Output isn't correct
28 Halted 0 ms 0 KB -