nazmul202101

//Given 2 int values, return true if one is negative and one is positive. Except if the parameter "negative" is true, then return true only if both are negative.

//posNeg(1, -1, false) → true
//posNeg(-1, 1, false) → true
//posNeg(-4, -5, true) → true

public boolean posNeg(int a, int b, boolean negative) {
  if(a<0 && b>0 && negative==false){
    return true;
  }

nazmul202101

//Given a string, take the last char and return a new string with the last char added at the front and back, so "cat" yields "tcatt". The original string will be length 1 or more.

//backAround("cat") → "tcatt"
//backAround("Hello") → "oHelloo"
//backAround("a") → "aaa

public String backAround(String str) {
  int length = str.length();
  
  char length1 = str.charAt(length-1);

nazmul202101

//Given two int values, return their sum. Unless the two values are the same, then return double their sum.

//sumDouble(1, 2) → 3
//sumDouble(3, 2) → 5
//sumDouble(2, 2) → 8

public int sumDouble(int a, int b) {
  if(a==b){
    return ((a+b)*2);
  }

nazmul202101

//Given an int n, return the absolute difference between n and 21, except return double the absolute difference if n is over 21.

//diff21(19) → 2
//diff21(10) → 11
//diff21(21) → 0

public int diff21(int n) {
  
  
  if(n<=21){

nazmul202101

//Given 2 positive int values, return the larger value that is in the range 10..20 inclusive, or return 0 if neither is in that range.

//max1020(11, 19) → 19
//max1020(19, 11) → 19
//max1020(11, 9) → 11

public int max1020(int a, int b) {
  if(a>=10 || a<=20){
    return a;
  }

nazmul202101

//Given two temperatures, return true if one is less than 0 and the other is greater than 100.

//icyHot(120, -1) → true
//icyHot(-1, 120) → true
//icyHot(2, 120) → false

public boolean icyHot(int temp1, int temp2) {
  if(temp1<0 && temp2>100 || temp2<0 && temp1>100 ){
    return true;
  }

nazmul202101

//Warmup-1
//monkeyTrouble
//We have two monkeys, a and b, and the parameters aSmile and bSmile indicate if each is smiling. We are in trouble if they are both smiling or if neither of them is smiling. Return true if we are in trouble.

//monkeyTrouble(true, true) → true
//monkeyTrouble(false, false) → true
//monkeyTrouble(true, false) → false

public boolean monkeyTrouble(boolean aSmile, boolean bSmile) {
  if(aSmile==bSmile){

nazmul202101

	public static void main(String[] args) {
		try {
			Scanner sc = new Scanner(new File(args[0]));
			int n = Integer.parseInt(sc.next());

			for (int i = 0; i < n; i++) {
				System.out.println(sc.next()); // TEST
			}

		} catch (FileNotFoundException e) {

nazmul202101

//Given two int values, return their sum. Unless the two values are the same, then return double their sum.

//sumDouble(1, 2) → 3
//sumDouble(3, 2) → 5
//sumDouble(2, 2) → 8

public int sumDouble(int a, int b) {
  if(a==b){
    return a+b;

nazmul202101

//Warmup-1
//intMax
// intMax
// Given three int values, a b c, return the largest. 

public int intMax(int a, int b, int c) {
  int max=0;
  if(a>b && a>c){
    return a;
  }