oj.uz

답안 #909826

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
909826 2024-01-17T12:59:06 Z OAleksa Growing Vegetable is Fun 3 (JOI19_ho_t3) C++14
15 / 100
 111 ms 702428 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] + 1;
  					int p1 = 0, p2 = 0;
  					if (j > 0)
  						p1 = pos[1][j - 1];
  					if (k > 0)
  						p2 = pos[2][k - 1];
  					if (R - 1 <= 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 - 1 + C(R, p2) + B(R, p1) - L);
  				}
  				if (j > 0) {
  					int L = p, R = pos[1][j - 1] + 1;
  					int p1 = 0, p2 = 0;
  					if (i > 0)
  						p1 = pos[0][i - 1];
  					if (k > 0)
  						p2 = pos[2][k - 1];
  					if (R - 1 <= 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 - 1 + A(R, p1) + C(R, p2) - L);
  				}
  				if (k > 0) {
  					int L = p, R = pos[2][k - 1] + 1;
  					int p1 = 0, p2 = 0;
  					if (i > 0)
  						p1 = pos[0][i - 1];
  					if (j > 0)
  						p2 = pos[1][j - 1];
  					if (R - 1 <= 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 - 1 + 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 2396 KB Output is correct
2 Correct 1 ms 2520 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 2 ms 10588 KB Output is correct
6 Correct 2 ms 12636 KB Output is correct
7 Correct 3 ms 14684 KB Output is correct
8 Correct 2 ms 12636 KB Output is correct
9 Correct 3 ms 12636 KB Output is correct
10 Correct 3 ms 20828 KB Output is correct
11 Incorrect 3 ms 10588 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 2396 KB Output is correct
2 Correct 1 ms 2520 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 2 ms 10588 KB Output is correct
6 Correct 2 ms 12636 KB Output is correct
7 Correct 3 ms 14684 KB Output is correct
8 Correct 2 ms 12636 KB Output is correct
9 Correct 3 ms 12636 KB Output is correct
10 Correct 3 ms 20828 KB Output is correct
11 Incorrect 3 ms 10588 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 1 ms 4440 KB Output is correct
2 Correct 102 ms 600168 KB Output is correct
3 Correct 99 ms 600104 KB Output is correct
4 Correct 99 ms 598864 KB Output is correct
5 Correct 103 ms 596928 KB Output is correct
6 Correct 100 ms 598832 KB Output is correct
7 Correct 100 ms 596276 KB Output is correct
8 Correct 101 ms 599452 KB Output is correct
9 Correct 102 ms 600936 KB Output is correct
10 Correct 104 ms 601980 KB Output is correct
11 Correct 100 ms 602200 KB Output is correct
12 Correct 42 ms 312404 KB Output is correct
13 Correct 67 ms 468244 KB Output is correct
14 Correct 83 ms 560668 KB Output is correct
15 Correct 111 ms 700116 KB Output is correct
16 Correct 103 ms 702428 KB Output is correct

Subtask #4
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2520 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 1 ms 6492 KB Output is correct
5 Correct 2 ms 10588 KB Output is correct
6 Correct 2 ms 12636 KB Output is correct
7 Correct 3 ms 14684 KB Output is correct
8 Correct 2 ms 12636 KB Output is correct
9 Correct 3 ms 12636 KB Output is correct
10 Correct 3 ms 20828 KB Output is correct
11 Incorrect 3 ms 10588 KB Output isn't correct
12 Halted 0 ms 0 KB -