Submission #376979

# Submission time Handle Problem Language Result Execution time Memory
376979 2021-03-12T13:56:49 Z peijar Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
75 / 100
500 ms 757612 KB
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
using namespace std;

const int MAXN = 401;
const int INF = 1e9;

int dp[MAXN][MAXN][MAXN][3];

signed main(void)
{
	ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
	
	int nbFleurs;
	string fleurs;
	cin >> nbFleurs >> fleurs;
	vector<vector<int>> positions(3);
	vector<vector<int>> prefixSum(3, vector<int>(nbFleurs+1));
	for (int i(0); i < nbFleurs; ++i)
	{
		for (int j(0); j < 3; ++j)
			prefixSum[j][i+1] = prefixSum[j][i];
		if (fleurs[i] == 'R')
		{
			positions[0].push_back(i);
			prefixSum[0][i+1]++;
		}
		else if (fleurs[i] == 'G')
		{
			positions[1].push_back(i);
			prefixSum[1][i+1]++;
	}
		else
		{
			positions[2].push_back(i);
			prefixSum[2][i+1]++;
		}
	}
	for (int nbRouge(0); nbRouge <= nbFleurs; ++nbRouge)
		for (int nbVerts(0); nbVerts <= nbFleurs; ++nbVerts)
			for (int nbJaunes(0); nbJaunes <= nbFleurs; ++nbJaunes)
				for (int dernier(0); dernier < 3; ++dernier)
					dp[nbRouge][nbVerts][nbJaunes][dernier]= INF;
	int rep = INF;
	int totRouges = (int)positions[0].size();
	int totVerts = (int)positions[1].size();
	int totJaunes = (int)positions[2].size();
	assert(totRouges >= 0 and totVerts >= 0 and totJaunes >= 0);
	if (totRouges)
		dp[1][0][0][0] = positions[0][0];
	if (totVerts)
		dp[0][1][0][1] = positions[1][0];
	if (totJaunes)
		dp[0][0][1][2] = positions[2][0];
	for (int nbRouge(0); nbRouge <= totRouges; ++nbRouge)
		for (int nbVerts(0); nbVerts <= totVerts; ++nbVerts)
			for (int nbJaunes(0); nbJaunes <= totJaunes ; ++nbJaunes)
				for (int dernier(0); dernier < 3; ++dernier)
					if (dp[nbRouge][nbVerts][nbJaunes][dernier] < INF)
					{
						int prix = dp[nbRouge][nbVerts][nbJaunes][dernier];
						int curPos[3] = {nbRouge, nbVerts, nbJaunes};
						for (int prochain(0); prochain < 3; ++prochain)
						{
							if (curPos[prochain] >= (int)positions[prochain].size())
								continue;
							if (prochain == dernier) continue;
							int nbSwap(0);
							for (int autres(0); autres < 3; ++autres)
							if (autres != prochain and curPos[autres] < (int)positions[autres].size())
							{
								int posNxt = positions[prochain][curPos[prochain]];
								int posAutres = positions[autres][curPos[autres]];
								if (posNxt > posAutres)
									nbSwap += prefixSum[autres][posNxt+1] - prefixSum[autres][posAutres];
							}
						int nxtRouges = nbRouge, nxtVerts = nbVerts, nxtJaunes = nbJaunes;
						if (!prochain) nxtRouges++;
						else if (prochain == 1) nxtVerts++;
						else nxtJaunes++;
						dp[nxtRouges][nxtVerts][nxtJaunes][prochain] = 
							min(dp[nxtRouges][nxtVerts][nxtJaunes][prochain], nbSwap + prix);
					}
				}
	for (int dernier(0); dernier < 3; ++dernier)
		rep = min(rep, dp[totRouges][totVerts][totJaunes][dernier]);

	if (rep == INF)
		rep = -1;
	cout << rep << endl;
}
# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 876 KB Output is correct
5 Correct 1 ms 1516 KB Output is correct
6 Correct 2 ms 1516 KB Output is correct
7 Correct 1 ms 1516 KB Output is correct
8 Correct 1 ms 1516 KB Output is correct
9 Correct 1 ms 1516 KB Output is correct
10 Correct 1 ms 1516 KB Output is correct
11 Correct 1 ms 1516 KB Output is correct
12 Correct 1 ms 1516 KB Output is correct
13 Correct 1 ms 1516 KB Output is correct
14 Correct 2 ms 1388 KB Output is correct
15 Correct 1 ms 1516 KB Output is correct
16 Correct 1 ms 1516 KB Output is correct
17 Correct 1 ms 1388 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 876 KB Output is correct
5 Correct 1 ms 1516 KB Output is correct
6 Correct 2 ms 1516 KB Output is correct
7 Correct 1 ms 1516 KB Output is correct
8 Correct 1 ms 1516 KB Output is correct
9 Correct 1 ms 1516 KB Output is correct
10 Correct 1 ms 1516 KB Output is correct
11 Correct 1 ms 1516 KB Output is correct
12 Correct 1 ms 1516 KB Output is correct
13 Correct 1 ms 1516 KB Output is correct
14 Correct 2 ms 1388 KB Output is correct
15 Correct 1 ms 1516 KB Output is correct
16 Correct 1 ms 1516 KB Output is correct
17 Correct 1 ms 1388 KB Output is correct
18 Correct 11 ms 18028 KB Output is correct
19 Correct 11 ms 18028 KB Output is correct
20 Correct 13 ms 18028 KB Output is correct
21 Correct 13 ms 18028 KB Output is correct
22 Correct 10 ms 18028 KB Output is correct
23 Correct 10 ms 18028 KB Output is correct
24 Correct 10 ms 18028 KB Output is correct
25 Correct 10 ms 18028 KB Output is correct
26 Correct 10 ms 18028 KB Output is correct
27 Correct 10 ms 18028 KB Output is correct
28 Correct 11 ms 18048 KB Output is correct
29 Correct 11 ms 18028 KB Output is correct
30 Correct 11 ms 18028 KB Output is correct
31 Correct 11 ms 18028 KB Output is correct
32 Correct 11 ms 18028 KB Output is correct
33 Correct 10 ms 17516 KB Output is correct
34 Correct 10 ms 17516 KB Output is correct
35 Correct 10 ms 16876 KB Output is correct
36 Correct 10 ms 17516 KB Output is correct
37 Correct 10 ms 16236 KB Output is correct
38 Correct 11 ms 18028 KB Output is correct
39 Correct 11 ms 18028 KB Output is correct
40 Correct 12 ms 17516 KB Output is correct
41 Correct 10 ms 18028 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 512 KB Output is correct
2 Correct 411 ms 757612 KB Output is correct
3 Correct 407 ms 755328 KB Output is correct
4 Correct 409 ms 757484 KB Output is correct
5 Correct 420 ms 757508 KB Output is correct
6 Correct 419 ms 757516 KB Output is correct
7 Correct 414 ms 755308 KB Output is correct
8 Correct 408 ms 755324 KB Output is correct
9 Correct 403 ms 751596 KB Output is correct
10 Correct 429 ms 757556 KB Output is correct
11 Correct 459 ms 757484 KB Output is correct
12 Correct 112 ms 202860 KB Output is correct
13 Correct 197 ms 357484 KB Output is correct
14 Correct 288 ms 517484 KB Output is correct
15 Correct 406 ms 757484 KB Output is correct
16 Correct 411 ms 757520 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 876 KB Output is correct
5 Correct 1 ms 1516 KB Output is correct
6 Correct 2 ms 1516 KB Output is correct
7 Correct 1 ms 1516 KB Output is correct
8 Correct 1 ms 1516 KB Output is correct
9 Correct 1 ms 1516 KB Output is correct
10 Correct 1 ms 1516 KB Output is correct
11 Correct 1 ms 1516 KB Output is correct
12 Correct 1 ms 1516 KB Output is correct
13 Correct 1 ms 1516 KB Output is correct
14 Correct 2 ms 1388 KB Output is correct
15 Correct 1 ms 1516 KB Output is correct
16 Correct 1 ms 1516 KB Output is correct
17 Correct 1 ms 1388 KB Output is correct
18 Correct 11 ms 18028 KB Output is correct
19 Correct 11 ms 18028 KB Output is correct
20 Correct 13 ms 18028 KB Output is correct
21 Correct 13 ms 18028 KB Output is correct
22 Correct 10 ms 18028 KB Output is correct
23 Correct 10 ms 18028 KB Output is correct
24 Correct 10 ms 18028 KB Output is correct
25 Correct 10 ms 18028 KB Output is correct
26 Correct 10 ms 18028 KB Output is correct
27 Correct 10 ms 18028 KB Output is correct
28 Correct 11 ms 18048 KB Output is correct
29 Correct 11 ms 18028 KB Output is correct
30 Correct 11 ms 18028 KB Output is correct
31 Correct 11 ms 18028 KB Output is correct
32 Correct 11 ms 18028 KB Output is correct
33 Correct 10 ms 17516 KB Output is correct
34 Correct 10 ms 17516 KB Output is correct
35 Correct 10 ms 16876 KB Output is correct
36 Correct 10 ms 17516 KB Output is correct
37 Correct 10 ms 16236 KB Output is correct
38 Correct 11 ms 18028 KB Output is correct
39 Correct 11 ms 18028 KB Output is correct
40 Correct 12 ms 17516 KB Output is correct
41 Correct 10 ms 18028 KB Output is correct
42 Correct 1 ms 512 KB Output is correct
43 Correct 411 ms 757612 KB Output is correct
44 Correct 407 ms 755328 KB Output is correct
45 Correct 409 ms 757484 KB Output is correct
46 Correct 420 ms 757508 KB Output is correct
47 Correct 419 ms 757516 KB Output is correct
48 Correct 414 ms 755308 KB Output is correct
49 Correct 408 ms 755324 KB Output is correct
50 Correct 403 ms 751596 KB Output is correct
51 Correct 429 ms 757556 KB Output is correct
52 Correct 459 ms 757484 KB Output is correct
53 Correct 112 ms 202860 KB Output is correct
54 Correct 197 ms 357484 KB Output is correct
55 Correct 288 ms 517484 KB Output is correct
56 Correct 406 ms 757484 KB Output is correct
57 Correct 411 ms 757520 KB Output is correct
58 Execution timed out 609 ms 757484 KB Time limit exceeded
59 Halted 0 ms 0 KB -