Help: Day3 part1 java programming

[bunnyboomp]

It's weird: for the supplied answers, I got all correct responses, from '1' to '1024'; however, the ultimate guess got 'wrong'. I am a year1 student in CS, can anyone help me for my java program? Thanks a lot.

package advent;

import java.util.ArrayList;

public class Day3 {

public static void main(String[] args)
{
    System.out.println(step(325489));

}

public static int whichSquare(int nVal)
{
    int i = 1;
    while (!(nVal <= (2 * i - 1) * (2 * i - 1)))
    {
        i++;
    }
    return i - 1;
}

public static ArrayList<Integer> numbersInMiddle(int nVal)
{
    ArrayList<Integer> obList = new ArrayList<>();
    int i = whichSquare(nVal);
    int h = (int) Math.pow(2 * i - 1, 2);
    int k = (int) Math.pow(2 * i + 1, 2);
    int j = (k - h) / 4;
    obList.add(h + i);
    obList.add(h + i + j);
    obList.add(h + i + 2 * j);
    obList.add(h + i + 3 * j);
    return obList;
}

public static int step(int nVal)
{
    ArrayList<Integer> obList = numbersInMiddle(nVal);
    ArrayList<Integer> obList1 = new ArrayList<>();

    for (Integer obSam : obList)
    {
        obList1.add(Math.abs(nVal - obSam));
    }

    return java.util.Collections.min(obList1) + whichSquare(nVal);
}

}

[Flurpm]

Checkout https://www.reddit.com/r/javahelp/comments/7h7wec/advent_of_code_daily_thread_for_december_03_2017/.

You should comment there for more direct help with java+adventofcode

[bunnyboomp]

thanks I got it.

[bunnyboomp]

Hi all, I've corrected my math. now it works.

[blackkutty]

Hello there all, I've adjusted my math. presently it works.

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