每日一题---506. 相对名次[力扣][Go]

func findRelativeRanks(score []int) []string {
    length := len(score)
    var res = make([]string,length)
    var m = make(map[int]int)
    // 先将序号保留下来，获得第几分的是第几位
    for i, sc := range score {
        m[sc] = i
    }
    // 将分数排序
    sort.Ints(score)
    // 排名
    for i, sc := range score {
        if i == length - 1 {
            res[m[sc]] = "Gold Medal"
        } else if i == length - 2 {
            res[m[sc]] = "Silver Medal"
        } else if i == length - 3 {
            res[m[sc]] = "Bronze Medal"
        } else {
            res[m[sc]] = strconv.Itoa(length - i)
        }
    }
    return res
}