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답안 #842240

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
842240 2023-09-02T15:43:46 Z green_gold_dog Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
100 / 100
 185 ms 134836 KB 
//#pragma GCC optimize("Ofast")
//#pragma GCC target("avx,avx2,sse,sse2,sse3,ssse3,sse4,abm,popcnt,mmx")
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef double db;
typedef long double ldb;
typedef complex<double> cd;

constexpr ll INF64 = 9'000'000'000'000'000'000, INF32 = 2'000'000'000, MOD = 1'000'000'007;
constexpr db PI = acos(-1);
constexpr bool IS_FILE = false, IS_TEST_CASES = false;

random_device rd;
mt19937 rnd32(rd());
mt19937_64 rnd64(rd());

template<typename T>
bool assign_max(T& a, T b) {
        if (b > a) {
                a = b;
                return true;
        }
        return false;
}

template<typename T>
bool assign_min(T& a, T b) {
        if (b < a) {
                a = b;
                return true;
        }
        return false;
}

template<typename T>
T square(T a) {
        return a * a;
}

template<>
struct std::hash<pair<ll, ll>> {
        ll operator() (pair<ll, ll> p) const {
                return ((__int128)p.first * MOD + p.second) % INF64;
        }
};

void solve() {
        ll n;
        cin >> n;
        string s;
        cin >> s;
        vector<ll> pr(1, 0), pg(1, 0), py(1, 0);
        vector<ll> posr, posg, posy;
        for (ll i = 0; i < n; i++) {
                pr.push_back(pr.back() + (s[i] == 'R'));
                pg.push_back(pg.back() + (s[i] == 'G'));
                py.push_back(py.back() + (s[i] == 'Y'));
                if (s[i] == 'R') {
                        posr.push_back(i);
                }
                if (s[i] == 'G') {
                        posg.push_back(i);
                }
                if (s[i] == 'Y') {
                        posy.push_back(i);
                }
        }
        vector<vector<vector<vector<ll>>>> dp(py.back() + 1, vector<vector<vector<ll>>>(pr.back() + 1, vector<vector<ll>>(pg.back() + 1, vector<ll>(3, INF32))));
        dp[0][0][0][0] = 0;
        dp[0][0][0][1] = 0;
        dp[0][0][0][2] = 0;
        for (ll cy = 0; cy <= py.back(); cy++) {
                for (ll cr = 0; cr <= pr.back(); cr++) {
                        for (ll cg = 0; cg <= pg.back(); cg++) {
                                for (ll lst = 0; lst < 3; lst++) {
                                        if ((lst == 0 && cr == 0) || (lst == 1 && cg == 0) || (lst == 2 && cy == 0)) {
                                                continue;
                                        }
                                        for (ll olst = 0; olst < 3; olst++) {
                                                if (olst == lst) {
                                                        continue;
                                                }
                                                ll add = 0;
                                                if (lst == 0) {
                                                        add = max(0ll, pg[posr[cr - 1]] - cg) + max(0ll, py[posr[cr - 1]] - cy);
                                                }
                                                if (lst == 1) {
                                                        add = max(0ll, pr[posg[cg - 1]] - cr) + max(0ll, py[posg[cg - 1]] - cy);
                                                }
                                                if (lst == 2) {
                                                        add = max(0ll, pr[posy[cy - 1]] - cr) + max(0ll, pg[posy[cy - 1]] - cg);
                                                }
                                                assign_min(dp[cy][cr][cg][lst], dp[cy - (lst == 2)][cr - (lst == 0)][cg - (lst == 1)][olst] + add);
                                        }
                                }
                        }
                }
        }
        ll ans = min({dp[py.back()][pr.back()][pg.back()][0], dp[py.back()][pr.back()][pg.back()][1], dp[py.back()][pr.back()][pg.back()][2]});
        cout << (ans == INF32 ? -1 : ans) << '\n';
}

int main() {
        if (IS_FILE) {
                freopen("", "r", stdin);
                freopen("", "w", stdout);
        }
        ios_base::sync_with_stdio(false);
        cin.tie(0);
        cout.tie(0);
        ll t = 1;
        if (IS_TEST_CASES) {
                cin >> t;
        }
        for (ll i = 0; i < t; i++) {
                solve();
        }
}

Compilation message

joi2019_ho_t3.cpp: In function 'int main()':
joi2019_ho_t3.cpp:108:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  108 |                 freopen("", "r", stdin);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:109:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  109 |                 freopen("", "w", stdout);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 548 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 ms 600 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct

Subtask #2
55.0 / 55.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 548 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 ms 600 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 1 ms 856 KB Output is correct
19 Correct 1 ms 856 KB Output is correct
20 Correct 1 ms 856 KB Output is correct
21 Correct 1 ms 856 KB Output is correct
22 Correct 1 ms 856 KB Output is correct
23 Correct 1 ms 860 KB Output is correct
24 Correct 1 ms 856 KB Output is correct
25 Correct 0 ms 600 KB Output is correct
26 Correct 0 ms 600 KB Output is correct
27 Correct 1 ms 856 KB Output is correct
28 Correct 1 ms 860 KB Output is correct
29 Correct 1 ms 860 KB Output is correct
30 Correct 1 ms 856 KB Output is correct
31 Correct 1 ms 860 KB Output is correct
32 Correct 1 ms 856 KB Output is correct
33 Correct 1 ms 600 KB Output is correct
34 Correct 1 ms 600 KB Output is correct
35 Correct 1 ms 856 KB Output is correct
36 Correct 1 ms 856 KB Output is correct
37 Correct 1 ms 1112 KB Output is correct
38 Correct 1 ms 856 KB Output is correct
39 Correct 1 ms 856 KB Output is correct
40 Correct 1 ms 344 KB Output is correct
41 Correct 1 ms 600 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 5 ms 4700 KB Output is correct
3 Correct 5 ms 4700 KB Output is correct
4 Correct 5 ms 4700 KB Output is correct
5 Correct 5 ms 4700 KB Output is correct
6 Correct 4 ms 4944 KB Output is correct
7 Correct 5 ms 4700 KB Output is correct
8 Correct 5 ms 4700 KB Output is correct
9 Correct 6 ms 4700 KB Output is correct
10 Correct 5 ms 4700 KB Output is correct
11 Correct 6 ms 4700 KB Output is correct
12 Correct 1 ms 1628 KB Output is correct
13 Correct 3 ms 2396 KB Output is correct
14 Correct 3 ms 3420 KB Output is correct
15 Correct 5 ms 4700 KB Output is correct
16 Correct 5 ms 4700 KB Output is correct

Subtask #4
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 548 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 ms 600 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 1 ms 856 KB Output is correct
19 Correct 1 ms 856 KB Output is correct
20 Correct 1 ms 856 KB Output is correct
21 Correct 1 ms 856 KB Output is correct
22 Correct 1 ms 856 KB Output is correct
23 Correct 1 ms 860 KB Output is correct
24 Correct 1 ms 856 KB Output is correct
25 Correct 0 ms 600 KB Output is correct
26 Correct 0 ms 600 KB Output is correct
27 Correct 1 ms 856 KB Output is correct
28 Correct 1 ms 860 KB Output is correct
29 Correct 1 ms 860 KB Output is correct
30 Correct 1 ms 856 KB Output is correct
31 Correct 1 ms 860 KB Output is correct
32 Correct 1 ms 856 KB Output is correct
33 Correct 1 ms 600 KB Output is correct
34 Correct 1 ms 600 KB Output is correct
35 Correct 1 ms 856 KB Output is correct
36 Correct 1 ms 856 KB Output is correct
37 Correct 1 ms 1112 KB Output is correct
38 Correct 1 ms 856 KB Output is correct
39 Correct 1 ms 856 KB Output is correct
40 Correct 1 ms 344 KB Output is correct
41 Correct 1 ms 600 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 5 ms 4700 KB Output is correct
44 Correct 5 ms 4700 KB Output is correct
45 Correct 5 ms 4700 KB Output is correct
46 Correct 5 ms 4700 KB Output is correct
47 Correct 4 ms 4944 KB Output is correct
48 Correct 5 ms 4700 KB Output is correct
49 Correct 5 ms 4700 KB Output is correct
50 Correct 6 ms 4700 KB Output is correct
51 Correct 5 ms 4700 KB Output is correct
52 Correct 6 ms 4700 KB Output is correct
53 Correct 1 ms 1628 KB Output is correct
54 Correct 3 ms 2396 KB Output is correct
55 Correct 3 ms 3420 KB Output is correct
56 Correct 5 ms 4700 KB Output is correct
57 Correct 5 ms 4700 KB Output is correct
58 Correct 183 ms 133292 KB Output is correct
59 Correct 185 ms 133548 KB Output is correct
60 Correct 179 ms 132432 KB Output is correct
61 Correct 185 ms 133972 KB Output is correct
62 Correct 17 ms 13476 KB Output is correct
63 Correct 28 ms 21596 KB Output is correct
64 Correct 101 ms 67440 KB Output is correct
65 Correct 131 ms 96084 KB Output is correct
66 Correct 182 ms 131844 KB Output is correct
67 Correct 173 ms 131668 KB Output is correct
68 Correct 180 ms 133716 KB Output is correct
69 Correct 179 ms 134836 KB Output is correct
70 Correct 184 ms 134488 KB Output is correct
71 Correct 178 ms 131284 KB Output is correct
72 Correct 49 ms 35164 KB Output is correct
73 Correct 12 ms 9052 KB Output is correct