Submission #659650

# Submission time Handle Problem Language Result Execution time Memory
659650 2022-11-18T21:14:20 Z zhing_zhou Telefoni (COCI17_telefoni) Java 11
80 / 80
84 ms 11360 KB
import java.util.*;
import java.io.*;
public class telefoni
{
    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[64]; // line length
            int cnt = 0, c;
            while ((c = read()) != -1) {
                if (c == '\n') {
                    if (cnt != 0) {
                        break;
                    }
                    else {
                        continue;
                    }
                }
                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();
        }
    }
    public static void main(String args[]) throws IOException
    {
        Reader sc = new Reader();
        int n = sc.nextInt(), k = sc.nextInt();
        int a[] = new int[n];
        for(int i = 0; i < n; i++)
        {
            a[i] = sc.nextInt();
        }
        int dist = 0, ans = 0;
        for(int i = 0; i < n; i++)
        {
            if(a[i] == 0)
            {
                dist++;
                if(dist >= k)
                {
                    dist = 0;
                    ans++;
                }
            }
            else
            {
                dist = 0;
            }
        }
        System.out.println(ans);
    }
}
# Verdict Execution time Memory Grader output
1 Correct 60 ms 8732 KB Output is correct
2 Correct 61 ms 8344 KB Output is correct
3 Correct 57 ms 8280 KB Output is correct
4 Correct 56 ms 8504 KB Output is correct
5 Correct 56 ms 8456 KB Output is correct
6 Correct 59 ms 8136 KB Output is correct
7 Correct 58 ms 8448 KB Output is correct
8 Correct 80 ms 11132 KB Output is correct
9 Correct 82 ms 11360 KB Output is correct
10 Correct 84 ms 11128 KB Output is correct