C. Bitwise Operation Wizard

本文主要是介绍C. Bitwise Operation Wizard，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

 解题思路

• 可以相同
• 先通过，找出最大值
• 再通过每个数与取或，记录得值最大时的每个数
• 其中的最小值与的最大

import java.io.*;
import java.math.BigInteger;
import java.util.Arrays;
import java.util.BitSet;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.Map;
import java.util.Objects;
import java.util.PriorityQueue;
import java.util.Queue;
import java.util.Random;
import java.util.Scanner;
import java.util.Stack;
import java.util.StringTokenizer;
import java.util.Vector;public class Main{static long md=(long)998244353;static long Linf=Long.MAX_VALUE/2;static int inf=Integer.MAX_VALUE/2;public static void main(String[] args) throws IOException{
//		AReader input=new AReader();
//	    PrintWriter out = new PrintWriter(new OutputStreamWriter(System.out));Scanner input=new Scanner(System.in);int T=input.nextInt();while(T>0) {int n=input.nextInt();int mx=0;for(int i=1;i<n;++i) {System.out.println("? "+i+" "+i+" "+mx+" "+mx);String y=input.next();char x=y.charAt(0);if(x=='<'||x=='=') {continue;}else if(x=='>') {mx=i;}}int b=mx;int mi=0;HashSet<Integer> may=new HashSet<Integer>();for(int i=0;i<n;++i) {if(i==mx)continue;System.out.println("? "+i+" "+mx+" "+b+" "+mx);String y=input.next();char x=y.charAt(0);if(x=='<')continue;else if(x=='>') {may.clear();may.add(i);b=i;mi=i;}else {may.add(i);}}for(int i:may) {if(i==mi)continue;System.out.println("? "+i+" "+i+" "+mi+" "+mi);String y=input.next();char x=y.charAt(0);if(x=='<') {mi=i;}}System.out.println("! "+mi+" "+mx);T--;}System.out.flush();
//	    out.close();}//System.out.println();//out.println();staticclass AReader{ BufferedReader bf;StringTokenizer st;BufferedWriter bw;public AReader(){bf=new BufferedReader(new InputStreamReader(System.in));st=new StringTokenizer("");bw=new BufferedWriter(new OutputStreamWriter(System.out));}public String nextLine() throws IOException{return bf.readLine();}public String next() throws IOException{while(!st.hasMoreTokens()){st=new StringTokenizer(bf.readLine());}return st.nextToken();}public char nextChar() throws IOException{//确定下一个token只有一个字符的时候再用return next().charAt(0);}public int nextInt() throws IOException{return Integer.parseInt(next());}public long nextLong() throws IOException{return Long.parseLong(next());}public double nextDouble() throws IOException{return Double.parseDouble(next());}public float nextFloat() throws IOException{return Float.parseFloat(next());}public byte nextByte() throws IOException{return Byte.parseByte(next());}public short nextShort() throws IOException{return Short.parseShort(next());}public BigInteger nextBigInteger() throws IOException{return new BigInteger(next());}public void println() throws IOException {bw.newLine();}public void println(int[] arr) throws IOException{for (int value : arr) {bw.write(value + " ");}println();}public void println(int l, int r, int[] arr) throws IOException{for (int i = l; i <= r; i ++) {bw.write(arr[i] + " ");}println();}public void println(int a) throws IOException{bw.write(String.valueOf(a));bw.newLine();}public void print(int a) throws IOException{bw.write(String.valueOf(a));}public void println(String a) throws IOException{bw.write(a);bw.newLine();}public void print(String a) throws IOException{bw.write(a);}public void println(long a) throws IOException{bw.write(String.valueOf(a));bw.newLine();}public void print(long a) throws IOException{bw.write(String.valueOf(a));}public void println(double a) throws IOException{bw.write(String.valueOf(a));bw.newLine();}public void print(double a) throws IOException{bw.write(String.valueOf(a));}public void print(char a) throws IOException{bw.write(String.valueOf(a));}public void println(char a) throws IOException{bw.write(String.valueOf(a));bw.newLine();}}
}

 

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