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  1. Sorting: Comparator
  2. Discussions

Sorting: Comparator

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505 Discussions

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  • wubrafiqcse807
     + 0 comments

    Java #

    public int compare(Player a, Player b) {
       
    int ageComarator = Integer.valueOf(b.score).compareTo(a.score);
     if (ageComarator != 0) {
        return ageComarator;
     } else {
       return a.name.compareTo(b.name);
     }
    }

  • mx3307
     + 0 comments

    I do think that the prompt is very confunsing, it says a checker is being called, but you have to implement the checker yourself, and that the Comparator interface exists? It was really confusing.

  • schmiddla1
     + 0 comments

    my JS solution - with class

    function processData(input) {
  //Enter your code here

  const scores = [];

  const inputAr = input.split('\n');
  inputAr.shift();

  for (let score of inputAr) {
    scores.push(new Score(score.split(' ')));
  }

  scores.sort((a, b) => a.compare(b));

  const ranking = scores.map((score) => score.toString());

  console.log(ranking.join('\n'));
}

class Score {
  player = '';
  score = 0;

  constructor([player, score] = playerScore) {
    this.player = player;
    this.score = +score;
  }

  compare(playerB) {
    return this.score < playerB.score
      ? 0
      : this.score === playerB.score
      ? this.player.localeCompare(playerB.player)
      : -1;
  }

  toString() {
    return this.player + ' ' + this.score;
  }
}

  • rexben_rb
     + 0 comments

    JS

    function processData(input) {
    //Enter your code here

    const data = input.split('\n');

    const arr = []

    for (let i = 1; i < data.length; i++) {
        const [name, scores] = data[i].split(' ');
        arr.push([name, scores])
    }


    const rr = obj.sort((a, b) => {
        if (b[1] !== a[1]) {
            return b[1] - a[1];
        }
        return a[0].localeCompare(b[0]);
    });

    const result = rr.map(r => r.join(' ')).join(' \n')

    console.log(result);

}

  • Snackbido
     + 0 comments

    Javascipt

    function processData(input) {
    //Enter your code here
    const arr = input.split("\n")
    const result = []
    for (let i = 1; i < arr.length; i++) {
        result.push(arr[i].split(" "))
    }
    result.sort((a, b) => {
        return b[1] - a[1];
    });

    result.sort((a, b) => {
        if (b[1] === a[1] && b[0] > a[0]) {
            return -1;
        }
    });
    console.log(result.join("\n").replaceAll(",", " "));

}