oj.uz

답안 #909798

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
909798 2024-01-17T12:32:31 Z OAleksa Growing Vegetable is Fun 3 (JOI19_ho_t3) C++14
15 / 100
 99 ms 465396 KB 
#include <bits/stdc++.h>
//ako ovaj vaso daso misli da me pobedjuje.....
using namespace std;
#define int long long
#define f first
#define s second
const int N = 410;
const int inf = 1e9 + 69;
int dp[N][N][N][3], n, pr[3][N];
string s;
vector<int> pos[3];
signed main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  int tt = 1;
  //cin >> tt;
  while (tt--) {
  	cin >> n >> s;
  	int a = 0, b = 0, c = 0;
  	for (int i = 0;i < n;i++) {
  		if (s[i] == 'R')
  			s[i] = 'A';
  		else if (s[i] == 'G')
  			s[i] = 'B';
  		else
  			s[i] = 'C';
  		a += (s[i] == 'A');
  		b += (s[i] == 'B');
  		c += (s[i] == 'C');
  		pos[s[i] - 'A'].push_back(i);
  	}
  	for (int i = 0;i < n;i++) {
  		if (i > 0) {
				pr[0][i] += pr[0][i - 1];
  			pr[1][i] += pr[1][i - 1];
  			pr[2][i] += pr[2][i - 1]; 
  		}
  		pr[0][i] += (s[i] == 'A');
  		pr[1][i] += (s[i] == 'B');
  		pr[2][i] += (s[i] == 'C');
  	}
  	for (int i = 0;i <= a;i++) {
  		for (int j = 0;j <= b;j++) {
  			for (int k = 0;k <= c;k++)
  				dp[i][j][k][0] = dp[i][j][k][1] = dp[i][j][k][2] = inf;
  		}
  	}
  	dp[0][0][0][0] = dp[0][0][0][1] = dp[0][0][0][2] = 0;
  	auto C = [&](int L, int R) {
  		if (L == 0)
  			return pr[2][R];
  		else if (R < L)
  			return 0ll;
  		return pr[2][R] - pr[2][L - 1];
  	};
  	auto B = [&](int L, int R) {
  		if (L == 0)
  			return pr[1][R];
  		else if (R < L)
  			return 0ll;
  		return pr[1][R] - pr[1][L - 1];
  	};
  	auto A = [&](int L, int R) {
  		if (L == 0)
  			return pr[0][R];
  		else if (R < L)
  			return 0ll;
  		return pr[0][R] - pr[0][L - 1];
  	};
  	for (int i = 0;i <= a;i++) {
  		for (int j = 0;j <= b;j++) {
  			for (int k = 0;k <= c;k++) {
  				int p = i + j + k - 1;
  				if (i > 0) {
  					int L = p, R = pos[0][i - 1];
  					int p1 = 0, p2 = 0;
  					if (j > 0)
  						p1 = pos[1][j - 1];
  					if (k > 0)
  						p2 = pos[2][k - 1];
  					if (R <= L)
  						dp[i][j][k][0] = min(dp[i - 1][j][k][1], dp[i - 1][j][k][2]);
  					else
  						dp[i][j][k][0] = min(dp[i - 1][j][k][1], dp[i - 1][j][k][2]) + (R + C(R, p2) + B(R, p1) - L);
  				}
  				if (j > 0) {
  					int L = p, R = pos[1][j - 1];
  					int p1 = 0, p2 = 0;
  					if (i > 0)
  						p1 = pos[0][i - 1];
  					if (k > 0)
  						p2 = pos[2][k - 1];
  					if (R <= L)
  						dp[i][j][k][1] = min(dp[i][j - 1][k][0], dp[i][j - 1][k][2]);
  					else
  						dp[i][j][k][1] = min(dp[i][j - 1][k][0], dp[i][j - 1][k][2]) + (R + A(R, p1) + C(R, p2) - L);
  				}
  				if (k > 0) {
  					int L = p, R = pos[2][k - 1];
  					int p1 = 0, p2 = 0;
  					if (i > 0)
  						p1 = pos[0][i - 1];
  					if (j > 0)
  						p2 = pos[1][j - 1];
  					if (R <= L)
  						dp[i][j][k][2] = min(dp[i][j][k - 1][1], dp[i][j][k - 1][0]);
  					else
  						dp[i][j][k][2] = min(dp[i][j][k - 1][1], dp[i][j][k - 1][0]) + (R + A(R, p1) + B(R, p2) - L);
  				}
  			}
  		}
  	}
  	int ans = inf;
  	for (int i = 0;i < 3;i++)
  		ans = min(ans, dp[a][b][c][i]);
  	if (ans >= inf)	
  		ans = -1;
  	cout << ans;
	}
  return 0;
}

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 3 ms 10584 KB Output is correct
6 Correct 2 ms 12636 KB Output is correct
7 Correct 3 ms 14684 KB Output is correct
8 Correct 3 ms 12636 KB Output is correct
9 Correct 2 ms 12636 KB Output is correct
10 Correct 4 ms 20828 KB Output is correct
11 Incorrect 2 ms 10656 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #2
0 / 55.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 3 ms 10584 KB Output is correct
6 Correct 2 ms 12636 KB Output is correct
7 Correct 3 ms 14684 KB Output is correct
8 Correct 3 ms 12636 KB Output is correct
9 Correct 2 ms 12636 KB Output is correct
10 Correct 4 ms 20828 KB Output is correct
11 Incorrect 2 ms 10656 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4440 KB Output is correct
2 Correct 96 ms 460624 KB Output is correct
3 Correct 93 ms 463184 KB Output is correct
4 Correct 95 ms 463456 KB Output is correct
5 Correct 99 ms 465396 KB Output is correct
6 Correct 96 ms 463436 KB Output is correct
7 Correct 92 ms 462636 KB Output is correct
8 Correct 91 ms 462672 KB Output is correct
9 Correct 95 ms 462416 KB Output is correct
10 Correct 93 ms 463440 KB Output is correct
11 Correct 93 ms 463444 KB Output is correct
12 Correct 42 ms 312328 KB Output is correct
13 Correct 57 ms 389200 KB Output is correct
14 Correct 75 ms 416392 KB Output is correct
15 Correct 93 ms 461652 KB Output is correct
16 Correct 97 ms 461688 KB Output is correct

Subtask #4
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 3 ms 10584 KB Output is correct
6 Correct 2 ms 12636 KB Output is correct
7 Correct 3 ms 14684 KB Output is correct
8 Correct 3 ms 12636 KB Output is correct
9 Correct 2 ms 12636 KB Output is correct
10 Correct 4 ms 20828 KB Output is correct
11 Incorrect 2 ms 10656 KB Output isn't correct
12 Halted 0 ms 0 KB -