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  1. Prepare
  2. Algorithms
  3. Implementation
  4. Migratory Birds
  5. Discussions

Migratory Birds

  • nalinnishant_020
     + 6 comments

    Here is my answer using java language You can check my Project Euler ans on github. 

     static int migratoryBirds(List<Integer> arr) {
        Map<Integer, Integer> birds = new HashMap<>();
        int key = 0;

        for(int i = 0; i < arr.size(); i++){
            if(birds.containsKey(arr.get(i))){
                birds.put(arr.get(i), birds.get(arr.get(i)) + 1);
            }else{
                birds.put(arr.get(i), 1);
            }
        }
        key = Collections.max(birds.entrySet(), Map.Entry.comparingByValue()).getKey();
        return key;
    }