저의 상황에서는
맞았는데 오답이 나와서 질문 드립니다.

어느 예시가 있는지 알려주시면 더욱 감사하겠습니다 ㅠㅠ

import java.text.DecimalFormat;
import java.util.*;
import java.io.*;
import java.math.*;

public class Main {

public static void main(String[] args) {

    ArrayList<Integer> result = new ArrayList<Integer>();

    Scanner input = new Scanner(System.in);

    int inputTestCase = input.nextInt();

    for (int i = 0; i < inputTestCase; i++) {

        double oneWinProb = input.nextInt();
        int winCount = input.nextInt();

        double winProb = 0;

        for(int j = 0; j < winCount; j++){

            winProb += (combinationCalculater((winCount + j - 1), j) * Math.pow((oneWinProb/100.0), winCount) * Math.pow((1 - (oneWinProb / 100.0)), j));

        }

        System.out.println("" +  winProb);

        result.add((int)Math.round(winProb*100));
    }

    for(int i = 0; i < inputTestCase; i++){

        System.out.println("" +  result.get(i));

    }
}

public static int combinationCalculater(int m, int n){

    int resultValue = 1;

    int molecule = 1;

    for(int i = 0; i < n; i++){

        molecule = (molecule * (m - i));

    }

    int denominator = 1;

    for(int i = 0; i < n; i++){

        denominator= (denominator * (i + 1));
    }

    resultValue = (molecule / denominator);

    return resultValue;
}

}