[프로그래머스] 위클리 챌린지 6주차 (javascript 풀이)

https://programmers.co.kr/learn/courses/30/lessons/85002?language=javascript 

코딩테스트 연습 - 6주차_복서 정렬하기

 

 

function solution(weights, head2head) {
    let winCount = 0;
    let loseCount = 0;
    let heavyCount = 0;
    let answer = [];
    for(let i = 0; i < head2head.length; i++){
        for(let j = 0; j < head2head[i].length; j++){
            let res = weights[i];
            if(head2head[i][j] === "W"){
                winCount++;
                if(res < weights[j]) heavyCount++;
            }
            else if(head2head[i][j] === "L") loseCount++;
        }
        if(loseCount+winCount === 0){
            answer.push({W : 0, Up : heavyCount, Weight: weights[i], Number : i+1});
        } 
        else answer.push({W : winCount / (loseCount+winCount), Up : heavyCount, Weight: weights[i], Number : i+1});
        winCount = 0;
        heavyCount = 0;
        loseCount = 0;
    }
    answer.sort((a,b) => {
        if(b.W !== a.W) return b.W - a.W;
        else if(b.W === a.W && b.Up === a.Up && a.Weight === b.Wight) return a.Weight - b.Weight;
        else if(b.W === a.W && b.Up === a.Up ) return b.Weight - a.Weight;
        else if(b.W === a.W) return b.Up - a.Up;
    })
    // console.log(answer);
    return answer.reduce((cur,arr) => {
        return cur.concat(arr.Number);    
    }, []);
}

 

정렬이 중요한 문제였다!