답안 #235524

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
235524	2020-05-28T12:05:07 Z	davitmarg	Growing Vegetable is Fun 3 (JOI19_ho_t3)	C++17	75 / 100	500 ms	776184 KB

joi2019_ho_t3

/*DavitMarg*/
#include <iostream>
#include <algorithm>
#include <cmath>
#include <vector>
#include <string>
#include <cstring>
#include <map>
#include <unordered_map>
#include <set>
#include <queue>
#include <iomanip>
#include <bitset>
#include <stack>
#include <cassert>
#include <iterator>
#include <fstream>
#define mod 1000000007ll
#define LL long long
#define LD long double
#define MP make_pair
#define PB push_back
#define all(v) v.begin(), v.end()
#define fastIO ios::sync_with_stdio(false); cin.tie(0)
using namespace std;

const int N = 410;

int pr[3][N], n, dp[N][N][N][3], sz[3];
vector<int> pos[3];
string s;

inline int ind(char x)
{
	if (x == 'R')
		return 0;
	if (x == 'G')
		return 1;
	return 2;
}

int get(int i, int l, int r)
{
	return max(0, pr[i][r] - pr[i][l - 1]);
}


int calc(int x, int a, int b, int c)
{
	a++;
	b++;
	c++;

	int p;
	if (x == 0)
		p = a;
	else if (x == 1)
		p = b;
	else
		p = c;

	int res = 0;
	if (p > pos[x].size())
		return mod;

	if (x != 0 && a <= sz[0])
		res += get(0, pos[0][a - 1], pos[x][p - 1]);
	if (x != 1 && b <= sz[1])
		res += get(1, pos[1][b - 1], pos[x][p - 1]);
	if (x != 2 && c <= sz[2])
		res += get(2, pos[2][c - 1], pos[x][p - 1]);
	return res;
}


void optm()
{
	unordered_map<char, int> c;
	for (int i = 1; i <= n; i++)
		c[s[i]]++;
	vector<pair<int, char>> v;
	v.push_back(MP(c['R'], 'R'));
	v.push_back(MP(c['G'], 'G'));
	v.push_back(MP(c['Y'], 'Y'));
	sort(all(v));
	for (int i = 1; i <= n; i++)
		if (s[i] == 'G')
			s[i] = v[0].second;
		else if (s[i] == 'R')
			s[i] = v[1].second;
		else
			s[i] = v[2].second;
}

int main()
{
	fastIO;
	cin >> n;
	cin >> s;
	s = "#" + s;
	optm();
	for (int i = 1; i <= n; i++)
	{
		for (int j = 0; j < 3; j++)
			pr[j][i] = pr[j][i - 1];
		pr[ind(s[i])][i]++;
		pos[ind(s[i])].push_back(i);
	}

	for (int i = 0; i <= n; i++)
		for (int j = 0; j <= n; j++)
			for (int k = 0; k <= n; k++)
				dp[i][j][k][0] = dp[i][j][k][1] = dp[i][j][k][2] = mod;


	dp[0][0][0][0] = dp[0][0][0][1] = dp[0][0][0][2] = 0;
	sz[0] = pos[0].size();
	sz[1] = pos[1].size();
	sz[2] = pos[2].size();
	for (int k = 0; k < n; k++)
		for (int a = 0; a <= k && a <= sz[0]; a++)
			for (int b = 0; a + b <= k && b <= sz[1]; b++)
			{
				int c = k - a - b;
				if (c > sz[2])
					continue;
				for (int j = 0; j < 3; j++)
				{
					int val = calc(j, a, b, c);
					for (int i = 0; i < 3; i++)
					{
						if (i == j)
							continue;
						dp[a + (j == 0)][b + (j == 1)][c + (j == 2)][j] = min(dp[a][b][c][i] + val, dp[a + (j == 0)][b + (j == 1)][c + (j == 2)][j]);
					}
				}
			}


	int ans = min(dp[pr[0][n]][pr[1][n]][pr[2][n]][0], min(dp[pr[0][n]][pr[1][n]][pr[2][n]][1], dp[pr[0][n]][pr[1][n]][pr[2][n]][2]));
	if (ans == mod)
		ans = -1;
	cout << ans << endl;

	return 0;
}

/*


RG



*/

Compilation message

joi2019_ho_t3.cpp: In function 'int calc(int, int, int, int)':
joi2019_ho_t3.cpp:63:8: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  if (p > pos[x].size())
      ~~^~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	5 ms	416 KB	Output is correct
4	Correct	5 ms	896 KB	Output is correct
5	Correct	5 ms	1536 KB	Output is correct
6	Correct	5 ms	1408 KB	Output is correct
7	Correct	6 ms	1408 KB	Output is correct
8	Correct	5 ms	1408 KB	Output is correct
9	Correct	5 ms	1408 KB	Output is correct
10	Correct	5 ms	1408 KB	Output is correct
11	Correct	5 ms	1408 KB	Output is correct
12	Correct	5 ms	1536 KB	Output is correct
13	Correct	5 ms	1536 KB	Output is correct
14	Correct	5 ms	1280 KB	Output is correct
15	Correct	5 ms	1408 KB	Output is correct
16	Correct	5 ms	1408 KB	Output is correct
17	Correct	5 ms	1280 KB	Output is correct

Subtask #2
55.0 / 55.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	5 ms	416 KB	Output is correct
4	Correct	5 ms	896 KB	Output is correct
5	Correct	5 ms	1536 KB	Output is correct
6	Correct	5 ms	1408 KB	Output is correct
7	Correct	6 ms	1408 KB	Output is correct
8	Correct	5 ms	1408 KB	Output is correct
9	Correct	5 ms	1408 KB	Output is correct
10	Correct	5 ms	1408 KB	Output is correct
11	Correct	5 ms	1408 KB	Output is correct
12	Correct	5 ms	1536 KB	Output is correct
13	Correct	5 ms	1536 KB	Output is correct
14	Correct	5 ms	1280 KB	Output is correct
15	Correct	5 ms	1408 KB	Output is correct
16	Correct	5 ms	1408 KB	Output is correct
17	Correct	5 ms	1280 KB	Output is correct
18	Correct	13 ms	18176 KB	Output is correct
19	Correct	13 ms	17920 KB	Output is correct
20	Correct	13 ms	18048 KB	Output is correct
21	Correct	14 ms	18048 KB	Output is correct
22	Correct	13 ms	18048 KB	Output is correct
23	Correct	13 ms	18048 KB	Output is correct
24	Correct	13 ms	18048 KB	Output is correct
25	Correct	13 ms	18048 KB	Output is correct
26	Correct	13 ms	18048 KB	Output is correct
27	Correct	15 ms	18048 KB	Output is correct
28	Correct	13 ms	18048 KB	Output is correct
29	Correct	13 ms	18176 KB	Output is correct
30	Correct	13 ms	18048 KB	Output is correct
31	Correct	13 ms	18176 KB	Output is correct
32	Correct	13 ms	18176 KB	Output is correct
33	Correct	13 ms	17408 KB	Output is correct
34	Correct	12 ms	17408 KB	Output is correct
35	Correct	13 ms	16896 KB	Output is correct
36	Correct	13 ms	17536 KB	Output is correct
37	Correct	12 ms	16256 KB	Output is correct
38	Correct	13 ms	18048 KB	Output is correct
39	Correct	15 ms	18048 KB	Output is correct
40	Correct	13 ms	17536 KB	Output is correct
41	Correct	13 ms	18176 KB	Output is correct

Subtask #3
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	398 ms	776056 KB	Output is correct
3	Correct	399 ms	772216 KB	Output is correct
4	Correct	396 ms	776184 KB	Output is correct
5	Correct	403 ms	776056 KB	Output is correct
6	Correct	405 ms	776056 KB	Output is correct
7	Correct	400 ms	772216 KB	Output is correct
8	Correct	403 ms	772224 KB	Output is correct
9	Correct	393 ms	768376 KB	Output is correct
10	Correct	404 ms	776096 KB	Output is correct
11	Correct	393 ms	776012 KB	Output is correct
12	Correct	108 ms	207352 KB	Output is correct
13	Correct	185 ms	365432 KB	Output is correct
14	Correct	270 ms	529056 KB	Output is correct
15	Correct	398 ms	776056 KB	Output is correct
16	Correct	402 ms	776056 KB	Output is correct

Subtask #4
0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	5 ms	416 KB	Output is correct
4	Correct	5 ms	896 KB	Output is correct
5	Correct	5 ms	1536 KB	Output is correct
6	Correct	5 ms	1408 KB	Output is correct
7	Correct	6 ms	1408 KB	Output is correct
8	Correct	5 ms	1408 KB	Output is correct
9	Correct	5 ms	1408 KB	Output is correct
10	Correct	5 ms	1408 KB	Output is correct
11	Correct	5 ms	1408 KB	Output is correct
12	Correct	5 ms	1536 KB	Output is correct
13	Correct	5 ms	1536 KB	Output is correct
14	Correct	5 ms	1280 KB	Output is correct
15	Correct	5 ms	1408 KB	Output is correct
16	Correct	5 ms	1408 KB	Output is correct
17	Correct	5 ms	1280 KB	Output is correct
18	Correct	13 ms	18176 KB	Output is correct
19	Correct	13 ms	17920 KB	Output is correct
20	Correct	13 ms	18048 KB	Output is correct
21	Correct	14 ms	18048 KB	Output is correct
22	Correct	13 ms	18048 KB	Output is correct
23	Correct	13 ms	18048 KB	Output is correct
24	Correct	13 ms	18048 KB	Output is correct
25	Correct	13 ms	18048 KB	Output is correct
26	Correct	13 ms	18048 KB	Output is correct
27	Correct	15 ms	18048 KB	Output is correct
28	Correct	13 ms	18048 KB	Output is correct
29	Correct	13 ms	18176 KB	Output is correct
30	Correct	13 ms	18048 KB	Output is correct
31	Correct	13 ms	18176 KB	Output is correct
32	Correct	13 ms	18176 KB	Output is correct
33	Correct	13 ms	17408 KB	Output is correct
34	Correct	12 ms	17408 KB	Output is correct
35	Correct	13 ms	16896 KB	Output is correct
36	Correct	13 ms	17536 KB	Output is correct
37	Correct	12 ms	16256 KB	Output is correct
38	Correct	13 ms	18048 KB	Output is correct
39	Correct	15 ms	18048 KB	Output is correct
40	Correct	13 ms	17536 KB	Output is correct
41	Correct	13 ms	18176 KB	Output is correct
42	Correct	5 ms	384 KB	Output is correct
43	Correct	398 ms	776056 KB	Output is correct
44	Correct	399 ms	772216 KB	Output is correct
45	Correct	396 ms	776184 KB	Output is correct
46	Correct	403 ms	776056 KB	Output is correct
47	Correct	405 ms	776056 KB	Output is correct
48	Correct	400 ms	772216 KB	Output is correct
49	Correct	403 ms	772224 KB	Output is correct
50	Correct	393 ms	768376 KB	Output is correct
51	Correct	404 ms	776096 KB	Output is correct
52	Correct	393 ms	776012 KB	Output is correct
53	Correct	108 ms	207352 KB	Output is correct
54	Correct	185 ms	365432 KB	Output is correct
55	Correct	270 ms	529056 KB	Output is correct
56	Correct	398 ms	776056 KB	Output is correct
57	Correct	402 ms	776056 KB	Output is correct
58	Execution timed out	590 ms	776076 KB	Time limit exceeded
59	Halted	0 ms	0 KB	-

답안 #235524

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 55.0 / 55.0

Subtask #3 15.0 / 15.0

Subtask #4 0 / 25.0

Subtask #1
5.0 / 5.0

Subtask #2
55.0 / 55.0

Subtask #3
15.0 / 15.0

Subtask #4
0 / 25.0