oj.uz

Submission #966604

# Submission time Handle Problem Language Result Execution time Memory
966604 2024-04-20T06:23:56 Z Der_Vlapos Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
100 / 100
 160 ms 28880 KB 
// #pragma GCC target("avx2")
// #pragma GCC optimize("O3")
// #include <x86intrin.h>

#include <bits/stdc++.h>
#include <chrono>
#include <random>

// @author: Vlapos

namespace operators
{
	template <typename T1, typename T2>
	std::istream &operator>>(std::istream &in, std::pair<T1, T2> &x)
	{
		in >> x.first >> x.second;
		return in;
	}

	template <typename T1, typename T2>
	std::ostream &operator<<(std::ostream &out, std::pair<T1, T2> x)
	{
		out << x.first << " " << x.second;
		return out;
	}

	template <typename T1>
	std::istream &operator>>(std::istream &in, std::vector<T1> &x)
	{
		for (auto &i : x)
			in >> i;
		return in;
	}

	template <typename T1>
	std::ostream &operator<<(std::ostream &out, std::vector<T1> &x)
	{
		for (auto &i : x)
			out << i << " ";
		return out;
	}

	template <typename T1>
	std::ostream &operator<<(std::ostream &out, std::set<T1> &x)
	{
		for (auto &i : x)
			out << i << " ";
		return out;
	}
}

// name spaces
using namespace std;
using namespace operators;
// end of name spaces

// defines
#define ll long long
#define ull unsigned long long
#define pb push_back
#define mp make_pair
#define pii pair<int, int>
#define pll pair<ll, ll>
#define f first
#define s second
#define uint unsigned int
#define all(vc) vc.begin(), vc.end()
// end of defines

// usefull stuff

void boost()
{
	ios_base ::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
}

inline int getbit(int &x, int &bt) { return (x >> bt) & 1; }

const int dx4[4] = {-1, 0, 0, 1};
const int dy4[4] = {0, -1, 1, 0};
const int dx8[8] = {-1, -1, -1, 0, 0, 1, 1, 1};
const int dy8[8] = {-1, -0, 1, -1, 1, -1, 0, 1};

const ll INF = (1e18) + 500;
const int BIG = (1e9) * 2 + 100;
const int MAXN = (1e5) + 5;
const int MOD7 = (1e9) + 7;
const int MOD9 = (1e9) + 9;
const uint MODFFT = 998244353;

// #define int ll

struct test
{
	void solve(int testcase)
	{
		boost();

		int n;
		cin >> n;
		string s;
		cin >> s;
		vector<int> a(n);
		map<char, int> ID;
		ID['R'] = 0;
		ID['G'] = 1;
		ID['Y'] = 2;
		for (int i = 0; i < n; ++i)
		{
			a[i] = ID[s[i]];
		}

		vector<vector<int>> pref(3, vector<int>(n)), pos(3, vector<int>(n));
		vector<int> cnt(3);
		for (int i = 0; i < n; ++i)
		{
			pref[a[i]][i]++;
			pos[a[i]][cnt[a[i]]] = i;
			cnt[a[i]]++;
			if (i)
				for (int j = 0; j < 3; ++j)
					pref[j][i] += pref[j][i - 1];
		}

		auto cost = [&](int cur, int id, vector<int> &C) -> int
		{
			int res = 0;
			for (int j = 0; j < 3; ++j)
				if (j != id)
					res += max(0, pref[j][pos[id][cur]] - C[j]);
			return res;
		};

		int dp[cnt[0] + 1][cnt[1] + 1][cnt[2] + 1][3];
		for (int r = 0; r <= cnt[0]; ++r)
			for (int g = 0; g <= cnt[1]; ++g)
				for (int b = 0; b <= cnt[2]; ++b)
					dp[r][g][b][0] = dp[r][g][b][1] = dp[r][g][b][2] = BIG;
		dp[0][0][0][0] = dp[0][0][0][1] = dp[0][0][0][2] = 0;

		for (int r = 0; r <= cnt[0]; ++r)
			for (int g = 0; g <= cnt[1]; ++g)
				for (int b = 0; b <= cnt[2]; ++b)
					for (int last = 0; last < 3; ++last)
					{
						vector<int> BF = {r, g, b};
						if (r != cnt[0] and last != 0)
							dp[r + 1][g][b][0] = min(dp[r + 1][g][b][0], dp[r][g][b][last] + cost(r, 0, BF));

						if (g != cnt[1] and last != 1)
							dp[r][g + 1][b][1] = min(dp[r][g + 1][b][1], dp[r][g][b][last] + cost(g, 1, BF));

						if (b != cnt[2] and last != 2)
							dp[r][g][b + 1][2] = min(dp[r][g][b + 1][2], dp[r][g][b][last] + cost(b, 2, BF));
					}
		int res = min({dp[cnt[0]][cnt[1]][cnt[2]][0], dp[cnt[0]][cnt[1]][cnt[2]][1], dp[cnt[0]][cnt[1]][cnt[2]][2]});
		if (res != BIG)
			cout << res;
		else
			cout << "-1\n";
	}
};

main()
{
	boost();
	int q = 1;
	// cin >> q;
	for (int i = 0; i < q; i++)
	{
		test t;
		t.solve(i);
	}
	return 0;
}
//[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]//
//                                                                                    //
//                               Coded by Der_Vlἀpos                                  //
//                                                                                    //
//[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]//

Compilation message

joi2019_ho_t3.cpp:166:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  166 | main()
      | ^~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 456 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 456 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 452 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct

Subtask #2
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 456 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 456 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 452 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 548 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 492 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 5 ms 860 KB Output is correct
3 Correct 3 ms 860 KB Output is correct
4 Correct 3 ms 860 KB Output is correct
5 Correct 3 ms 860 KB Output is correct
6 Correct 3 ms 860 KB Output is correct
7 Correct 3 ms 860 KB Output is correct
8 Correct 3 ms 860 KB Output is correct
9 Correct 3 ms 856 KB Output is correct
10 Correct 3 ms 860 KB Output is correct
11 Correct 3 ms 936 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 2 ms 604 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 3 ms 860 KB Output is correct
16 Correct 3 ms 860 KB Output is correct

Subtask #4
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 456 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 456 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 452 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 344 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 548 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 1 ms 348 KB Output is correct
36 Correct 1 ms 492 KB Output is correct
37 Correct 1 ms 348 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 5 ms 860 KB Output is correct
44 Correct 3 ms 860 KB Output is correct
45 Correct 3 ms 860 KB Output is correct
46 Correct 3 ms 860 KB Output is correct
47 Correct 3 ms 860 KB Output is correct
48 Correct 3 ms 860 KB Output is correct
49 Correct 3 ms 860 KB Output is correct
50 Correct 3 ms 856 KB Output is correct
51 Correct 3 ms 860 KB Output is correct
52 Correct 3 ms 936 KB Output is correct
53 Correct 1 ms 348 KB Output is correct
54 Correct 2 ms 604 KB Output is correct
55 Correct 2 ms 604 KB Output is correct
56 Correct 3 ms 860 KB Output is correct
57 Correct 3 ms 860 KB Output is correct
58 Correct 154 ms 28832 KB Output is correct
59 Correct 156 ms 28756 KB Output is correct
60 Correct 160 ms 28380 KB Output is correct
61 Correct 152 ms 28536 KB Output is correct
62 Correct 13 ms 2772 KB Output is correct
63 Correct 22 ms 4420 KB Output is correct
64 Correct 75 ms 14172 KB Output is correct
65 Correct 124 ms 20484 KB Output is correct
66 Correct 153 ms 28252 KB Output is correct
67 Correct 151 ms 28256 KB Output is correct
68 Correct 158 ms 28676 KB Output is correct
69 Correct 152 ms 28880 KB Output is correct
70 Correct 152 ms 28788 KB Output is correct
71 Correct 150 ms 28144 KB Output is correct
72 Correct 39 ms 7768 KB Output is correct
73 Correct 12 ms 2140 KB Output is correct