oj.uz

Submission #272951

# Submission time Handle Problem Language Result Execution time Memory
272951 2020-08-18T22:31:58 Z Gilgamesh JJOOII 2 (JOI20_ho_t2) Java 11
100 / 100
 239 ms 20804 KB 
import java.util.*;
import java.io.*;

public class ho_t2 {
	final static int MOD = 1000000007;
	final static int intMax = 1000000000;
	final static int intMin = -1000000000;
	final static int[] dx = { 0, 0, -1, 1 };
	final static int[] dy = { -1, 1, 0, 0 };

	static int T;

	static class Reader {
		final private int BUFFER_SIZE = 1 << 16;
		private DataInputStream din;
		private byte[] buffer;
		private int bufferPointer, bytesRead;

		public Reader() {
			din = new DataInputStream(System.in);
			buffer = new byte[BUFFER_SIZE];
			bufferPointer = bytesRead = 0;
		}

		public Reader(String file_name) throws IOException {
			din = new DataInputStream(new FileInputStream(file_name));
			buffer = new byte[BUFFER_SIZE];
			bufferPointer = bytesRead = 0;
		}

		public String readLine() throws IOException {
			byte[] buf = new byte[360]; // line length
			int cnt = 0, c;
			while ((c = read()) != -1) {
				if (c == '\n')
					break;
				buf[cnt++] = (byte) c;
			}
			return new String(buf, 0, cnt);
		}

		public int nextInt() throws IOException {
			int ret = 0;
			byte c = read();
			while (c <= ' ')
				c = read();
			boolean neg = (c == '-');
			if (neg)
				c = read();
			do {
				ret = ret * 10 + c - '0';
			} while ((c = read()) >= '0' && c <= '9');

			if (neg)
				return -ret;
			return ret;
		}

		public long nextLong() throws IOException {
			long ret = 0;
			byte c = read();
			while (c <= ' ')
				c = read();
			boolean neg = (c == '-');
			if (neg)
				c = read();
			do {
				ret = ret * 10 + c - '0';
			} while ((c = read()) >= '0' && c <= '9');
			if (neg)
				return -ret;
			return ret;
		}

		public double nextDouble() throws IOException {
			double ret = 0, div = 1;
			byte c = read();
			while (c <= ' ')
				c = read();
			boolean neg = (c == '-');
			if (neg)
				c = read();

			do {
				ret = ret * 10 + c - '0';
			} while ((c = read()) >= '0' && c <= '9');

			if (c == '.') {
				while ((c = read()) >= '0' && c <= '9') {
					ret += (c - '0') / (div *= 10);
				}
			}

			if (neg)
				return -ret;
			return ret;
		}

		private void fillBuffer() throws IOException {
			bytesRead = din.read(buffer, bufferPointer = 0, BUFFER_SIZE);
			if (bytesRead == -1)
				buffer[0] = -1;
		}

		private byte read() throws IOException {
			if (bufferPointer == bytesRead)
				fillBuffer();
			return buffer[bufferPointer++];
		}

		public void close() throws IOException {
			if (din == null)
				return;
			din.close();
		}
	}
	
	static int N, K;
	static String s;
	
	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		StringTokenizer st = new StringTokenizer(br.readLine());
		N = Integer.parseInt(st.nextToken());
		K = Integer.parseInt(st.nextToken());
		s = br.readLine();
		ArrayList<Integer> Js = new ArrayList<Integer>();
		ArrayList<Integer> Os = new ArrayList<Integer>();
		ArrayList<Integer> Is = new ArrayList<Integer>();
		for(int i = 0; i < N; ++i) {
			if(s.charAt(i) == 'J') {
				Js.add(i);
			}
			else if(s.charAt(i) == 'O') {
				Os.add(i);
			}
			else {
				Is.add(i);
			}
		}
		int ans = 1000000000;
		for(int i = K - 1; i < Js.size(); ++i) {
			int curpos = Js.get(i);
			int l = 0, r = Os.size();
			while(l < r) {
				int mid = l + (r - l) / 2;
				if(mid == Os.size()) break;
				if(Os.get(mid) > curpos) {
					r = mid;
				}
				else {
					l = mid + 1;
				}
			}
			if(l + K - 1 >= Os.size()) break;
			int opos = Os.get(l + K - 1);
			l = 0; r = Is.size();
			while(l < r) {
				int mid = l + (r - l) / 2;
				if(mid == Is.size()) break;
				if(Is.get(mid) > opos) {
					r = mid;
				}
				else {
					l = mid + 1;
				}
			}
			if(l + K - 1 >= Is.size()) break;
			ans = Math.min(ans, Is.get(l + K - 1) - Js.get(i - K + 1) + 1);
		}
		if(ans == 1000000000) System.out.println(-1);
		else System.out.println(ans - K * 3);
//		in.close();
	}
}

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 78 ms 10340 KB Output is correct
2 Correct 87 ms 10316 KB Output is correct
3 Correct 75 ms 10212 KB Output is correct
4 Correct 79 ms 10240 KB Output is correct
5 Correct 93 ms 10216 KB Output is correct
6 Correct 86 ms 10240 KB Output is correct
7 Correct 94 ms 10160 KB Output is correct
8 Correct 89 ms 10220 KB Output is correct
9 Correct 77 ms 10232 KB Output is correct
10 Correct 77 ms 10236 KB Output is correct
11 Correct 79 ms 10380 KB Output is correct
12 Correct 79 ms 10304 KB Output is correct
13 Correct 78 ms 10168 KB Output is correct
14 Correct 82 ms 10344 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 78 ms 10340 KB Output is correct
2 Correct 87 ms 10316 KB Output is correct
3 Correct 75 ms 10212 KB Output is correct
4 Correct 79 ms 10240 KB Output is correct
5 Correct 93 ms 10216 KB Output is correct
6 Correct 86 ms 10240 KB Output is correct
7 Correct 94 ms 10160 KB Output is correct
8 Correct 89 ms 10220 KB Output is correct
9 Correct 77 ms 10232 KB Output is correct
10 Correct 77 ms 10236 KB Output is correct
11 Correct 79 ms 10380 KB Output is correct
12 Correct 79 ms 10304 KB Output is correct
13 Correct 78 ms 10168 KB Output is correct
14 Correct 82 ms 10344 KB Output is correct
15 Correct 92 ms 10264 KB Output is correct
16 Correct 91 ms 10464 KB Output is correct
17 Correct 99 ms 10324 KB Output is correct
18 Correct 88 ms 10596 KB Output is correct
19 Correct 93 ms 10364 KB Output is correct
20 Correct 91 ms 10344 KB Output is correct
21 Correct 93 ms 10344 KB Output is correct
22 Correct 84 ms 10464 KB Output is correct
23 Correct 86 ms 10268 KB Output is correct
24 Correct 100 ms 10340 KB Output is correct
25 Correct 85 ms 10364 KB Output is correct
26 Correct 84 ms 10364 KB Output is correct
27 Correct 90 ms 10252 KB Output is correct
28 Correct 87 ms 10604 KB Output is correct
29 Correct 81 ms 10228 KB Output is correct
30 Correct 95 ms 10348 KB Output is correct
31 Correct 83 ms 10348 KB Output is correct
32 Correct 86 ms 10704 KB Output is correct
33 Correct 85 ms 10496 KB Output is correct
34 Correct 89 ms 10356 KB Output is correct
35 Correct 79 ms 10416 KB Output is correct

Subtask #3
87.0 / 87.0

# Verdict Execution time Memory Grader output
1 Correct 78 ms 10340 KB Output is correct
2 Correct 87 ms 10316 KB Output is correct
3 Correct 75 ms 10212 KB Output is correct
4 Correct 79 ms 10240 KB Output is correct
5 Correct 93 ms 10216 KB Output is correct
6 Correct 86 ms 10240 KB Output is correct
7 Correct 94 ms 10160 KB Output is correct
8 Correct 89 ms 10220 KB Output is correct
9 Correct 77 ms 10232 KB Output is correct
10 Correct 77 ms 10236 KB Output is correct
11 Correct 79 ms 10380 KB Output is correct
12 Correct 79 ms 10304 KB Output is correct
13 Correct 78 ms 10168 KB Output is correct
14 Correct 82 ms 10344 KB Output is correct
15 Correct 92 ms 10264 KB Output is correct
16 Correct 91 ms 10464 KB Output is correct
17 Correct 99 ms 10324 KB Output is correct
18 Correct 88 ms 10596 KB Output is correct
19 Correct 93 ms 10364 KB Output is correct
20 Correct 91 ms 10344 KB Output is correct
21 Correct 93 ms 10344 KB Output is correct
22 Correct 84 ms 10464 KB Output is correct
23 Correct 86 ms 10268 KB Output is correct
24 Correct 100 ms 10340 KB Output is correct
25 Correct 85 ms 10364 KB Output is correct
26 Correct 84 ms 10364 KB Output is correct
27 Correct 90 ms 10252 KB Output is correct
28 Correct 87 ms 10604 KB Output is correct
29 Correct 81 ms 10228 KB Output is correct
30 Correct 95 ms 10348 KB Output is correct
31 Correct 83 ms 10348 KB Output is correct
32 Correct 86 ms 10704 KB Output is correct
33 Correct 85 ms 10496 KB Output is correct
34 Correct 89 ms 10356 KB Output is correct
35 Correct 79 ms 10416 KB Output is correct
36 Correct 209 ms 19596 KB Output is correct
37 Correct 236 ms 19616 KB Output is correct
38 Correct 201 ms 19888 KB Output is correct
39 Correct 239 ms 20400 KB Output is correct
40 Correct 211 ms 19952 KB Output is correct
41 Correct 194 ms 19780 KB Output is correct
42 Correct 228 ms 19960 KB Output is correct
43 Correct 137 ms 16684 KB Output is correct
44 Correct 144 ms 18628 KB Output is correct
45 Correct 165 ms 19772 KB Output is correct
46 Correct 152 ms 19704 KB Output is correct
47 Correct 153 ms 19704 KB Output is correct
48 Correct 172 ms 20804 KB Output is correct
49 Correct 135 ms 17812 KB Output is correct
50 Correct 150 ms 19704 KB Output is correct
51 Correct 163 ms 19848 KB Output is correct
52 Correct 158 ms 19420 KB Output is correct
53 Correct 158 ms 19456 KB Output is correct
54 Correct 206 ms 19928 KB Output is correct
55 Correct 185 ms 20656 KB Output is correct
56 Correct 168 ms 19764 KB Output is correct