Submission #25578279

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Source Code Expand

import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.TreeMap;
import java.util.StringTokenizer;
import java.io.IOException;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.InputStream;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 */
public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        MyScanner in = new MyScanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        D solver = new D();
        solver.solve(1, in, out);
        out.close();
    }

    static class D {
        public void solve(int testNumber, MyScanner in, PrintWriter out) {
            int L = in.Int(), Q = in.Int();
            TreeMap<Integer, Integer> map = new TreeMap<>();
            for (int q = 0; q < Q; q++) {
                int c = in.Int(), x = in.Int();
                Integer fk = map.floorKey(x);
                Integer ck = map.ceilingKey(x);
                int pos = (fk == null) ? 0 : fk;
                if (c == 1) {
                    map.put(x, x - pos);
                    if (ck != null) {
                        pos = x;
                        map.put(ck, ck - pos);
                    }
                } else {
                    Integer k = map.ceilingKey(x);
                    int ans = k == null ? L - pos : map.get(k);
                    out.println(ans);
                }
            }
        }

    }

    static class MyScanner {
        private BufferedReader in;
        private StringTokenizer st;

        public MyScanner(InputStream stream) {
            in = new BufferedReader(new InputStreamReader(stream));
        }

        public String next() {
            while (st == null || !st.hasMoreTokens()) {
                try {
                    String rl = in.readLine();
                    if (rl == null) {
                        return null;
                    }
                    st = new StringTokenizer(rl);
                } catch (IOException e) {
                    return null;
                }
            }
            return st.nextToken();
        }

        public int Int() {
            return Integer.parseInt(next());
        }

    }
}

Submission Info

Judge Result