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/*
* USACOTOOLS-Official version
* This is the official version.
*
*/
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Queue;
import java.util.Scanner;
import java.util.Set;
import java.util.*;
import java.util.regex.*;
public abstract class utools {
public static final String ANSI_RESET = "\u001B[0m";
public static final String ANSI_BLACK = "\u001B[30m";
public static final String ANSI_RED = "\u001B[31m";
public static final String ANSI_GREEN = "\u001B[32m";
public static final String ANSI_YELLOW = "\u001B[33m";
public static final String ANSI_BLUE = "\u001B[34m";
public static final String ANSI_PURPLE = "\u001B[35m";
public static final String ANSI_CYAN = "\u001B[36m";
public static final String ANSI_WHITE = "\u001B[37m";
public static int ERRORS=0;
public static ArrayList console=new ArrayList();
public static String error="Error";
public static int debugcode=-1;
public static boolean DEBUG=false;
public static boolean lock;
public static boolean IO=true;
public static void blockio() {
IO=false;
}
public static boolean isrect(int[][] map,int x,int y) {
int cachedsize=-1;
int cachey=-1;
for(int i=x;icachedsize) {
return false;
}
for(int j=y;jcachey) {
return false;
}
}
}
return true;
}
public static Set sclones(Set k) {
return (new HashSet(k));
}
public static Set sclone(Set k) {
return (new HashSet(k));
}
public static Set sclonel(Set k) {
return (new HashSet(k));
}
public static boolean smartequals(int[] a,int[] b) {
if(a.length!=b.length) {
return false;
}
for(int i=0;i x)
return binarySearch(arr, l, mid-1, x);
return binarySearch(arr, mid+1, r, x);
}
return -1;
}
public static int[][] copy2D(int[][] a){
int[][] b=new int[a.length][];
for(int i=0;i