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  1. Prepare
  2. Algorithms
  3. Implementation
  4. Equalize the Array
  5. Discussions

Equalize the Array

  • m_stefanski98
     + 0 comments

    JAVA There are some solutions using streams, but maybe it will be more readable for somebody:

        public static int equalizeArray(List<Integer> arr) {
    //create a map to be able to count occurances
    HashMap<Integer, Integer> arrMap = new HashMap<>();
    
    for(int num : arr) {
        if(arrMap.containsKey(num)) {
            arrMap.put(num, arrMap.get(num) +1);
        } else {
            arrMap.put(num, 1);
        }
    }
    
    int max = 0;
    
    for(int valueOfArrMap : arrMap.values()) {
        if(valueOfArrMap >= max) max = valueOfArrMap;
    }
    
return arr.size() - max;