₦airaland Forum

kudaisi:
If the numbers 1 to 5 are written out in words: one, two, three, four, five, then there are 3 + 3 + 5 + 4 + 4 = 19 letters used in total.

If all the numbers from 1 to 1000 (one thousand) inclusive were written out in words, how many letters would be used?


NOTE: Do not count spaces or hyphens. For example, 342 (three hundred and forty-two) contains 23 letters and 115 (one hundred and fifteen) contains 20 letters. The use of "and" when writing out numbers is in compliance with British usage.

 
package problems;

import java.util.HashMap;
import java.util.Random;

/**
 */
class Problems {

    static HashMap<Integer, String> numberMap = new HashMap();
    static StringBuffer builder = new StringBuffer();
    static {
        numberMap.put(1, "one";
        numberMap.put(2, "two";
        numberMap.put(3, "three";
        numberMap.put(4, "four";
        numberMap.put(5, "five";
        numberMap.put(6, "six";
        numberMap.put(7, "seven";
        numberMap.put(8, "eight";
        numberMap.put(9, "nine";
        numberMap.put(10, "10";
        numberMap.put(11, "eleven";
        numberMap.put(12, "twelve";
        numberMap.put(13, "thirteen";
        numberMap.put(14, "fourteen";
        numberMap.put(15, "fifteen";
        numberMap.put(16, "sixteen";
        numberMap.put(17, "seventeen";
        numberMap.put(18, "eighteen";
        numberMap.put(19, "nineteen";
        numberMap.put(20, "twenty";
        numberMap.put(30, "thirty";
        numberMap.put(40, "forty";
        numberMap.put(50, "fifty";
        numberMap.put(60, "sixty";
        numberMap.put(70, "seventy";
        numberMap.put(80, "eighty";
        numberMap.put(90, "ninety";
        numberMap.put(100, "hundred";
        numberMap.put(1000, "thousand";

    }

    private static String noToWordsNoSpaces(int number) {
        builder.delete(0, builder.capacity()-1);
        int rem = number;
        int quotient = 0;
        //small numbers
        if (number <= 20) {
            return numberMap.get(number);
        } else if (number < 100) {
            quotient = rem / 10;
            rem = rem % 10;
            return String.format("%s%s", numberMap.get(quotient * 10), ((rem > 0) ? numberMap.get(rem) : "");
        }
        //larger numbers
        quotient = rem / 1000;
        rem = rem % 1000;
        if (quotient > 0) {
            builder.append(String.format("%s%s", numberMap.get(quotient), numberMap.get(1000)));
        }
        quotient = rem / 100;
        rem = rem % 100;
        if (quotient > 0) {
            builder.append(String.format("%s%s", numberMap.get(quotient), numberMap.get(100)));
        }
        if (rem == 0) {
            return builder.toString();
        } else {
            if (rem <= 20) {
                builder.append(String.format("and%s", numberMap.get(rem)));
            } else {
                quotient = rem / 10;
                rem = rem % 10;
                builder.append(String.format("and%s%s", numberMap.get(quotient * 10), ((rem > 0) ? numberMap.get(rem) : ""));
            }
        }
        return builder.toString();
    }

    public static void main(String[] args) {
        int answer = 0;
        for (int i = 1; i <= 5; i++) {
            answer += noToWordsNoSpaces(i).length();
        }
        System.out.println(answer);
        answer = 0;
        for (int i = 1; i <= 1000; i++) {
            answer += noToWordsNoSpaces(i).length();
        }
        System.out.println(answer);
    }
}

elfico:
have u done it before?

pretizy:
nice one..i also give out java tutorials on my what's app group.. i will support this movement here as well

lookingforjob:
THEY ARE WICKED AND SELF CENTERED. THEY INSIST ON INFLICTING MORE POVERTY ON THE MASSES BY VOTING GEJ

skentelelady:
Please help me to ask your brother.

My brother just got a laptop from them today and it is bad. We got to know after we opened it.

We have been calling and nobody is really saying anying promising so we need to find their warehouse or office and return it

Please help

skentelelady:
please where is konga warehouse situated

thank you

Richhommie:
Please can anyone in the house help me with these problems. I would really appreciate it .
Thanks in advance

Methods should be implemented in java

1. Given the functions
f(a,b)=4a - 8b=0
g(x,y)= 9x^2 - 3y=0
,implement a method that resolves
h(x,y,a,b)= 2g(x,y)^f(a,b) (^ means raised to the power)

Show results for 10 different values in a tabular form as shown below

S/n. x. y. a. b. h(x,y,a,b)
1
2
3
4
5
6
7
8
9
10



2. Given that. f(n)=f(n -1)+ f(n - 2)
where f(0)= f(1)= 5.
And n>1; implement a method for evaluating f(n) using recursion.

class NairalandSolution {

    public static double f(double a, double b){
        double result = (4 * a) - (8 *b);
        return result;
    }

    public static double g(double x, double y){
        double result = (9 * Math.pow(x, 2)) - (3*y);   
        return result;
    }

    public static double h(double x, double y, double a, double b){
        double result = 2.0 * Math.pow(g(x,y), f(a,b));  
        return result;
    }

    public static void main(String[] args) {
        double x,y,a,b;
        x = 6; y = 2; a = 6; b = 2;
        System.out.printf("S/N.\tx.\ty.\ta.\tb.\th(x,y,a,b)%n";
        for(int i = 1; i <= 10; i++){
            x += 2; y++; a += 2; b++;
            System.out.printf("%d\t%.2f\t%.2f\t%.2f\t%.2f\t%.2f%n", i, x, y, a, b, h(x,y,a,b));
        }
    }
}

class Recursion{
    public static int f(int n){
        if(n <= 1) return 5;
        else return f(n-1) + f(n-2);
    }    
    public static void main(String[] args){
        System.out.println("f(9) = " + f(9));
    }
}

realowded:
Please bro, explain each line of codes...

realowded:
Please bro, explain each line of codes...

class Primes{
    static boolean isPrime(int number){ //isPrime is declared as static, so we can use it within main (main is also static)
        if(number == 2)
            return true;
        for(int i = 2; i < number; i++){
            if(number % i == 0)  //If the number can be divided by any other number apart from 1 and itself 
                return false;      //Then it is not prime
        }
        return true; //If not it is prime
    }
    public static void main(String[] args){ //type psvm and press tab, netbeans will complete this for you
        int number = 0; //Variable for holding the maximum number
        Scanner scan = new Scanner(System.in);
        System.out.println("Please enter the maximum number" ); //type sout and press tab
        number = scan.nextInt();
        int count = 0; //The number of primes found
        for(int i = 2; i <= number; i++){
            if(isPrime(i))
                count++;
        }
        System.out.println("The number of primes between 1 and " + number + " is " + count);
    }
}

Primes

isPrime

true

static

Prime

boolean

isPrime

false

true

Scanner

mundus:
Imo youths are already mobilizing supports for Buhari in the streets of Owerri.

obailala:
..and in your mind, you are automatically 101% sure that the motor assembly plant in Nnewi will be closed if GEJ leaves power?

Can you please take several seats at the back...

If a less corrupt government is at the centre, you will surely see several more automotive assembly plants springing up across the south east. With less corruption and better security even in the north, investor confidence would be boosted in Nigeria as a whole and more foreign investors would surely troop down into the south east to tap into the juicy business environment of Nigeria.

NISSAN, FORD and TOYOTA would surely love to have a plant in Nigeria but due to the percieved insecurity and corrupt business environment (especially by govt officials demanding cutbacks), these companies have been very wary of investing a kobo in Nigeria and have kept away. The story of Virgin Nigeria and the shocking words of Richard Branson when he pulled away from Nigeria is still fresh in our minds. With the forthcoming elections, these guys are closely monitoring Nigeria and praying a less corrupt govt takes over.

Saboteur to Igbo race indeed, what Nonsense!... The kind of Igbo blood in me is too superior and does not permit blind and silly followership. By the way, is Jonathan even an Igbo man?... Okay, he's not my brother but rather my close neighbour so I can easily assume he's my brother but then, "OF WHAT USE IS MY BROTHER'S LEADERSHIP TO ME IF HE CANNOT DEVELOP THE NATION OR EVEN JUST OUR FATHER'S COMPOUND?"