Thread: Where am I going wrong

TopCoder Statistics - Problem Statement

I'm tackling the above practice problem, my solution seems to work for example 0 and example 1, though not the last two. I've even tried working out manually example 2 and still got my solution though I know I'm going wrong somewhere. Here is my code

import java.util.HashMap;
import java.util.Map;
 
 
public class AverageCandyLifetime {
 
	public static void main(String[] args){
		int[] candiesEaten = {0, 0, 0, 0, 0, 1, 0, 0, 0, 50, 0, 0};
		System.out.println(getAverage(candiesEaten));
	}
 
	public static double getAverage(int[] eatenCandies){
 
		int totalCandiesLifetime = 0;
 
		double numberOfTimesEaten = 0;
 
		Map<Integer, Integer>daysInMonth = new HashMap<Integer, Integer>();
		daysInMonth.put(0, 31);
		daysInMonth.put(1, 28);
		daysInMonth.put(2, 31);
		daysInMonth.put(3, 30);
		daysInMonth.put(4, 31);
		daysInMonth.put(5, 30);
		daysInMonth.put(6, 31);
		daysInMonth.put(7, 31);
		daysInMonth.put(8, 30);
		daysInMonth.put(9, 31);
		daysInMonth.put(10, 30);
		daysInMonth.put(11, 31);
 
		for(int i = 0;i<eatenCandies.length;i++){
			if(eatenCandies[i]!=0){
				numberOfTimesEaten++;
			  for(int j = 0;j<=i;j++){
				  totalCandiesLifetime += daysInMonth.get(j);
			  }
			}
		}
		return totalCandiesLifetime / numberOfTimesEaten;
	}
}

Any guidance would be appreciated.

Well so many other people have got the problem right on TopCoder plus I assume the examples are most definitely correct.

It's hard to explain, it calculates the lifetime of candies, the input is the months of the year with values greater than zero if candy was eaten at end of month, so basically if candy was eaten only at end of February, the lifetime is 31 days of January plus 28 days of February, the average would be 28+31 /number of times candy eaten which in this case would be 1.

I was wondering what could be wrong with my code, as solution works good for half of the example tests.

Output in the above code in the main method should be 301.5882352941176, though I get the output 242.5.