oj.uz

Submission #1107392

# Submission time Handle Problem Language Result Execution time Memory
1107392 2024-11-01T07:34:13 Z vjudge1 Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
100 / 100
 243 ms 618136 KB 
# include <bits/stdc++.h>

// #pragma optimize("g", on)
// #pragma GCC optimize ("inline")
// #pragma GCC optimize ("Ofast")
// #pragma GCC optimize ("unroll-loops")
// #pragma GCC optimize ("03")
// #pragma GCC target ("sse,sse2,sse3,ssse3,sse4,popcnt,abm,avx2,mmx,fma,avx,tune=native")

// #pragma GCC optimize("O3,unroll-loops")
// #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")


using namespace std;
 
# define ll long long
# define pii pair <int, int>
# define pll pair <ll, ll>
# define nl '\n'
# define sz(x) (int)(x).size()
# define all(x) (x).begin(), (x).end()
# define deb(x) cerr << #x << " = " << x << endl;
 
const int maxn = (int)404;
const ll inf = (ll)2e5;
const int mod = (int)1e9 + 7;
const bool T = 0;

short n;
string s;
int dp[maxn][maxn][maxn][3];
short pref[3][maxn];
vector <short> g[3];
short d[3];

short f (char c) {
    if (c == 'R') return 0;
    if (c == 'G') return 1;
    if (c == 'Y') return 2;
    assert(0);
    return -1;
}

void op (int &a, int b) {
    a = min(a, b);
}

void ma1n () {
    cin >> n >> s;
    g[0].push_back(0);
    g[1].push_back(0);
    g[2].push_back(0);
    for (short i = 0; i < n; ++i) {
        for (short j = 0; j < 3; ++j) {
            pref[j][i + 1] = pref[j][i];
        }
        short x = f(s[i]);
        pref[x][i + 1]++;
        g[x].push_back(i + 1);
    }
    for (short i = 0; i <= n; ++i) {
        for (short x = 0; x <= pref[0][n]; ++x) {
            for (short y = 0; y <= pref[1][n]; ++y) {
                for (short k = 0; k < 3; ++k) {
                    dp[i][x][y][k] = inf;
                }
            }
        }
    }
    // memset(dp, 0x3f, sizeof dp);
    // int lim = dp[3][2][1][0];
    dp[0][0][0][0] = dp[0][0][0][1] = dp[0][0][0][2] = 0;
    // deb(s);
    // exit(0);
    for (short i = 0; i < n; ++i) {
        for (short x = 0; x <= min(i, pref[0][n]); ++x) {
            for (short y = 0; y <= min((short)(i - x), pref[1][n]); ++y) {
                if (x + y > i) continue;
                short z = i - x - y;
                if (z > pref[2][n]) continue;
                d[0] = x, d[1] = y, d[2] = z;
                for (short prv = 0; prv < 3; ++prv) {
                    for (short cur = 0; cur < 3; ++cur) {
                        if (prv == cur || d[cur] == pref[cur][n]) continue;
                        // cout << "continue everything" << nl;
                        // continue;
                        short othr = prv ^ cur ^ 3;
                        assert(othr >= 0 && othr < 3 && othr != prv && othr != cur);
                        short id = g[cur][d[cur] + 1];
                        op(dp[i + 1][x + (cur == 0)][y + (cur == 1)][cur], dp[i][x][y][prv] + max(pref[prv][id] - d[prv], 0) + max(pref[othr][id] - d[othr], 0));
                    }
                }

            }
        }
    }
    int ans = inf;
    for (short last = 0; last < 3; ++last) {
        ans = min(ans, dp[n][pref[0][n]][pref[1][n]][last]);
        // cout << pref[0][n] << ' ' << pref[1][n] << ' ' << last << ' ' <<dp[n][pref[0][n]][pref[1][n]][last] << nl;
    }
    // for (int x = 0; x <= n; ++x) {
    //     for (int y = 0; y <= n; ++y) {
    //         if (x + y > n) continue;
    //         for (int last = 0; last < 3; ++last) {
    //             ans = min(ans, dp[n][x][y][last]);
    //             if (dp[n][x][y][last] != lim) {
    //                 cout << x << ' ' << y << ' ' << last << ' ' << dp[n][x][y][last] << nl;
    //             }
    //         }
    //     }
    // }
    cout << (ans == inf ? -1 : ans) << nl;
}

signed main () {
    ios::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);
    int ttt = 1;
    if (T) cin >> ttt;
    while (ttt--) {
        ma1n();
    }
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 1 ms 4432 KB Output is correct
3 Correct 1 ms 6480 KB Output is correct
4 Correct 2 ms 20816 KB Output is correct
5 Correct 4 ms 29008 KB Output is correct
6 Correct 4 ms 29008 KB Output is correct
7 Correct 3 ms 29008 KB Output is correct
8 Correct 3 ms 29008 KB Output is correct
9 Correct 3 ms 29176 KB Output is correct
10 Correct 3 ms 29008 KB Output is correct
11 Correct 3 ms 29008 KB Output is correct
12 Correct 3 ms 29008 KB Output is correct
13 Correct 3 ms 29008 KB Output is correct
14 Correct 3 ms 29008 KB Output is correct
15 Correct 3 ms 29172 KB Output is correct
16 Correct 3 ms 29008 KB Output is correct
17 Correct 3 ms 26960 KB Output is correct

Subtask #2
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 1 ms 4432 KB Output is correct
3 Correct 1 ms 6480 KB Output is correct
4 Correct 2 ms 20816 KB Output is correct
5 Correct 4 ms 29008 KB Output is correct
6 Correct 4 ms 29008 KB Output is correct
7 Correct 3 ms 29008 KB Output is correct
8 Correct 3 ms 29008 KB Output is correct
9 Correct 3 ms 29176 KB Output is correct
10 Correct 3 ms 29008 KB Output is correct
11 Correct 3 ms 29008 KB Output is correct
12 Correct 3 ms 29008 KB Output is correct
13 Correct 3 ms 29008 KB Output is correct
14 Correct 3 ms 29008 KB Output is correct
15 Correct 3 ms 29172 KB Output is correct
16 Correct 3 ms 29008 KB Output is correct
17 Correct 3 ms 26960 KB Output is correct
18 Correct 11 ms 117328 KB Output is correct
19 Correct 11 ms 115280 KB Output is correct
20 Correct 11 ms 117368 KB Output is correct
21 Correct 11 ms 115280 KB Output is correct
22 Correct 11 ms 117328 KB Output is correct
23 Correct 10 ms 115280 KB Output is correct
24 Correct 11 ms 115460 KB Output is correct
25 Correct 13 ms 117584 KB Output is correct
26 Correct 12 ms 117328 KB Output is correct
27 Correct 12 ms 117328 KB Output is correct
28 Correct 13 ms 117340 KB Output is correct
29 Correct 12 ms 117328 KB Output is correct
30 Correct 12 ms 115292 KB Output is correct
31 Correct 11 ms 115280 KB Output is correct
32 Correct 14 ms 115448 KB Output is correct
33 Correct 12 ms 115280 KB Output is correct
34 Correct 12 ms 115280 KB Output is correct
35 Correct 12 ms 113500 KB Output is correct
36 Correct 11 ms 115280 KB Output is correct
37 Correct 11 ms 111184 KB Output is correct
38 Correct 12 ms 115280 KB Output is correct
39 Correct 11 ms 115280 KB Output is correct
40 Correct 11 ms 115280 KB Output is correct
41 Correct 11 ms 115404 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6480 KB Output is correct
2 Correct 233 ms 489800 KB Output is correct
3 Correct 221 ms 499272 KB Output is correct
4 Correct 222 ms 504020 KB Output is correct
5 Correct 208 ms 520776 KB Output is correct
6 Correct 223 ms 520496 KB Output is correct
7 Correct 226 ms 512264 KB Output is correct
8 Correct 220 ms 511304 KB Output is correct
9 Correct 224 ms 513820 KB Output is correct
10 Correct 220 ms 521600 KB Output is correct
11 Correct 215 ms 528968 KB Output is correct
12 Correct 49 ms 303688 KB Output is correct
13 Correct 96 ms 358984 KB Output is correct
14 Correct 156 ms 422984 KB Output is correct
15 Correct 221 ms 518996 KB Output is correct
16 Correct 207 ms 518216 KB Output is correct

Subtask #4
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2384 KB Output is correct
2 Correct 1 ms 4432 KB Output is correct
3 Correct 1 ms 6480 KB Output is correct
4 Correct 2 ms 20816 KB Output is correct
5 Correct 4 ms 29008 KB Output is correct
6 Correct 4 ms 29008 KB Output is correct
7 Correct 3 ms 29008 KB Output is correct
8 Correct 3 ms 29008 KB Output is correct
9 Correct 3 ms 29176 KB Output is correct
10 Correct 3 ms 29008 KB Output is correct
11 Correct 3 ms 29008 KB Output is correct
12 Correct 3 ms 29008 KB Output is correct
13 Correct 3 ms 29008 KB Output is correct
14 Correct 3 ms 29008 KB Output is correct
15 Correct 3 ms 29172 KB Output is correct
16 Correct 3 ms 29008 KB Output is correct
17 Correct 3 ms 26960 KB Output is correct
18 Correct 11 ms 117328 KB Output is correct
19 Correct 11 ms 115280 KB Output is correct
20 Correct 11 ms 117368 KB Output is correct
21 Correct 11 ms 115280 KB Output is correct
22 Correct 11 ms 117328 KB Output is correct
23 Correct 10 ms 115280 KB Output is correct
24 Correct 11 ms 115460 KB Output is correct
25 Correct 13 ms 117584 KB Output is correct
26 Correct 12 ms 117328 KB Output is correct
27 Correct 12 ms 117328 KB Output is correct
28 Correct 13 ms 117340 KB Output is correct
29 Correct 12 ms 117328 KB Output is correct
30 Correct 12 ms 115292 KB Output is correct
31 Correct 11 ms 115280 KB Output is correct
32 Correct 14 ms 115448 KB Output is correct
33 Correct 12 ms 115280 KB Output is correct
34 Correct 12 ms 115280 KB Output is correct
35 Correct 12 ms 113500 KB Output is correct
36 Correct 11 ms 115280 KB Output is correct
37 Correct 11 ms 111184 KB Output is correct
38 Correct 12 ms 115280 KB Output is correct
39 Correct 11 ms 115280 KB Output is correct
40 Correct 11 ms 115280 KB Output is correct
41 Correct 11 ms 115404 KB Output is correct
42 Correct 1 ms 6480 KB Output is correct
43 Correct 233 ms 489800 KB Output is correct
44 Correct 221 ms 499272 KB Output is correct
45 Correct 222 ms 504020 KB Output is correct
46 Correct 208 ms 520776 KB Output is correct
47 Correct 223 ms 520496 KB Output is correct
48 Correct 226 ms 512264 KB Output is correct
49 Correct 220 ms 511304 KB Output is correct
50 Correct 224 ms 513820 KB Output is correct
51 Correct 220 ms 521600 KB Output is correct
52 Correct 215 ms 528968 KB Output is correct
53 Correct 49 ms 303688 KB Output is correct
54 Correct 96 ms 358984 KB Output is correct
55 Correct 156 ms 422984 KB Output is correct
56 Correct 221 ms 518996 KB Output is correct
57 Correct 207 ms 518216 KB Output is correct
58 Correct 225 ms 457288 KB Output is correct
59 Correct 242 ms 468768 KB Output is correct
60 Correct 232 ms 451656 KB Output is correct
61 Correct 243 ms 446024 KB Output is correct
62 Correct 228 ms 546376 KB Output is correct
63 Correct 227 ms 526084 KB Output is correct
64 Correct 242 ms 513140 KB Output is correct
65 Correct 234 ms 488008 KB Output is correct
66 Correct 235 ms 454728 KB Output is correct
67 Correct 229 ms 434760 KB Output is correct
68 Correct 218 ms 448328 KB Output is correct
69 Correct 234 ms 446060 KB Output is correct
70 Correct 231 ms 449096 KB Output is correct
71 Correct 237 ms 456008 KB Output is correct
72 Correct 236 ms 618136 KB Output is correct
73 Correct 33 ms 284408 KB Output is correct