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Commit f9f6673

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‎Collections Notes.odt‎

3.24 MB
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import java.io.BufferedReader;
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import java.io.DataInputStream;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.util.ArrayList;
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import java.util.Arrays;
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/**
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* @author Mustansir
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*
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*/
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public class trying {
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/**
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* @param args
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*/
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static class Reader
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{
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final private int BUFFER_SIZE = 1 << 16;
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private DataInputStream din;
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private byte[] buffer;
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private int bufferPointer, bytesRead;
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public Reader()
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{
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din = new DataInputStream(System.in);
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buffer = new byte[BUFFER_SIZE];
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bufferPointer = bytesRead = 0;
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}
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public Reader(String file_name) throws IOException
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{
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din = new DataInputStream(new FileInputStream(file_name));
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buffer = new byte[BUFFER_SIZE];
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bufferPointer = bytesRead = 0;
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}
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public String readLine() throws IOException
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{
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byte[] buf = new byte[64]; // line length
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int cnt = 0, c;
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while ((c = read()) != -1)
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{
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if (c == '\n')
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break;
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buf[cnt++] = (byte) c;
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}
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return new String(buf, 0, cnt);
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}
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public int nextInt() throws IOException
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{
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int ret = 0;
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byte c = read();
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while (c <= ' ')
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c = read();
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boolean neg = (c == '-');
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if (neg)
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c = read();
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do
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{
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ret = ret * 10 + c - '0';
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} while ((c = read()) >= '0' && c <= '9');
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if (neg)
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return -ret;
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return ret;
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}
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public long nextLong() throws IOException
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{
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long ret = 0;
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byte c = read();
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while (c <= ' ')
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c = read();
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boolean neg = (c == '-');
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if (neg)
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c = read();
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do {
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ret = ret * 10 + c - '0';
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}
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while ((c = read()) >= '0' && c <= '9');
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if (neg)
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return -ret;
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return ret;
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}
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public double nextDouble() throws IOException
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{
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double ret = 0, div = 1;
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byte c = read();
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while (c <= ' ')
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c = read();
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boolean neg = (c == '-');
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if (neg)
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c = read();
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do {
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ret = ret * 10 + c - '0';
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}
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while ((c = read()) >= '0' && c <= '9');
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if (c == '.')
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{
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while ((c = read()) >= '0' && c <= '9')
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{
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ret += (c - '0') / (div *= 10);
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}
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}
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if (neg)
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return -ret;
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return ret;
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}
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private void fillBuffer() throws IOException
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{
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bytesRead = din.read(buffer, bufferPointer = 0, BUFFER_SIZE);
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if (bytesRead == -1)
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buffer[0] = -1;
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}
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private byte read() throws IOException
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{
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if (bufferPointer == bytesRead)
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fillBuffer();
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return buffer[bufferPointer++];
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}
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public void close() throws IOException
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{
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if (din == null)
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return;
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din.close();
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}
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}
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public static void main(String[] args)throws IOException {
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// TODO Auto-generated method stub
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Reader s = new Reader();
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long n=s.nextLong();
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}
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}

‎codeforces/K_Largest_Value.java‎

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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.math.BigInteger;
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import java.util.*;
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public class K_Largest_Value {
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//https://codeforces.com/contest/1491/problem/A
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public static void main(String[] args)throws IOException {
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BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
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String[] st=br.readLine().split(" ");
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int n = Integer.parseInt(st[0]);
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int q = Integer.parseInt(st[1]);
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String[] aa =br.readLine().split(" ");
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ArrayList<Integer> al = new ArrayList<>();
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for(String e : aa)
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{
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al.add(Integer.parseInt(e));
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}
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while(q-->0)
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{
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String[] st2=br.readLine().split(" ");
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if(Integer.parseInt(st[0])%2==0)
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{ int k = Integer.parseInt(st[1]);
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Collections.sort(al, Collections.reverseOrder());
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System.out.println(al.get(k));
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}
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else{
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int x = Integer.parseInt(st[1]);
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al.set(x,1-al.get(x));
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System.out.println(al.get(x));
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}
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}
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}
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}
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