Formatted question description: https://leetcode.ca/all/1431.html

1431. Kids With the Greatest Number of Candies

Level

Easy

Description

Given the array candies and the integer extraCandies, where candies[i] represents the number of candies that the ith kid has.

For each kid check if there is a way to distribute extraCandies among the kids such that he or she can have the greatest number of candies among them. Notice that multiple kids can have the greatest number of candies.

Example 1:

Input: candies = [2,3,5,1,3], extraCandies = 3

Output: [true,true,true,false,true]

Explanation:

Kid 1 has 2 candies and if he or she receives all extra candies (3) will have 5 candies — the greatest number of candies among the kids.

Kid 2 has 3 candies and if he or she receives at least 2 extra candies will have the greatest number of candies among the kids.

Kid 3 has 5 candies and this is already the greatest number of candies among the kids.

Kid 4 has 1 candy and even if he or she receives all extra candies will only have 4 candies.

Kid 5 has 3 candies and if he or she receives at least 2 extra candies will have the greatest number of candies among the kids.

Example 2:

Input: candies = [4,2,1,1,2], extraCandies = 1

Output: [true,false,false,false,false]

Explanation: There is only 1 extra candy, therefore only kid 1 will have the greatest number of candies among the kids regardless of who takes the extra candy.

Example 3:

Input: candies = [12,1,12], extraCandies = 10

Output: [true,false,true]

Constraints:

  • 2 <= candies.length <= 100
  • 1 <= candies[i] <= 100
  • 1 <= extraCandies <= 50

Solution

Loop over candies to find the greatest number of candies. Then for each element in candies, calculate the sum of extraCandies and the element and check whether the sum is greater than or equal to the greatest number of candies. If so, add true to the result list. Otherwise, add false to the result list. Finally, return the result list.

class Solution {
    public List<Boolean> kidsWithCandies(int[] candies, int extraCandies) {
        int length = candies.length;
        int max = candies[0];
        for (int i = 1; i < length; i++)
            max = Math.max(max, candies[i]);
        List<Boolean> list = new ArrayList<Boolean>();
        for (int i = 0; i < length; i++) {
            int total = candies[i] + extraCandies;
            list.add(total >= max);
        }
        return list;
    }
}

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