给你一个字符串数组 names
,和一个由 互不相同 的正整数组成的数组 heights
。两个数组的长度均为 n
。
对于每个下标 i
,names[i]
和 heights[i]
表示第 i
个人的名字和身高。
请按身高 降序 顺序返回对应的名字数组 names
。
示例 1:
输入:names = ["Mary","John","Emma"], heights = [180,165,170] 输出:["Mary","Emma","John"] 解释:Mary 最高,接着是 Emma 和 John 。
示例 2:
输入:names = ["Alice","Bob","Bob"], heights = [155,185,150] 输出:["Bob","Alice","Bob"] 解释:第一个 Bob 最高,然后是 Alice 和第二个 Bob 。
提示:
n == names.length == heights.length
1 <= n <= 103
1 <= names[i].length <= 20
1 <= heights[i] <= 105
names[i]
由大小写英文字母组成heights
中的所有值互不相同
方法一:直接模拟
直接按照题意,从高到低遍历身高数组,将对应的名字加入结果数组即可。
时间复杂度 heights
的长度。
class Solution:
def sortPeople(self, names: List[str], heights: List[int]) -> List[str]:
idx = list(range(len(heights)))
idx.sort(key=lambda i: -heights[i])
return [names[i] for i in idx]
class Solution {
public String[] sortPeople(String[] names, int[] heights) {
int n = heights.length;
int[][] arr = new int[n][2];
for (int i = 0; i < n; ++i) {
arr[i] = new int[] {heights[i], i};
}
Arrays.sort(arr, (a, b) -> b[0] - a[0]);
String[] ans = new String[n];
for (int i = 0; i < n; ++i) {
ans[i] = names[arr[i][1]];
}
return ans;
}
}
class Solution {
public:
vector<string> sortPeople(vector<string>& names, vector<int>& heights) {
int n = heights.size();
vector<pair<int, int>> arr(n);
for (int i = 0; i < n; ++i) {
arr[i] = {-heights[i], i};
}
sort(arr.begin(), arr.end());
vector<string> ans(n);
for (int i = 0; i < n; ++i) {
ans[i] = names[arr[i].second];
}
return ans;
}
};
func sortPeople(names []string, heights []int) []string {
n := len(heights)
type pair struct{ v, i int }
arr := make([]pair, n)
for i, v := range heights {
arr[i] = pair{v, i}
}
sort.Slice(arr, func(i, j int) bool { return arr[i].v > arr[j].v })
ans := make([]string, n)
for i, v := range arr {
ans[i] = names[v.i]
}
return ans
}
function sortPeople(names: string[], heights: number[]): string[] {
return names
.map<[string, number]>((s, i) => [s, heights[i]])
.sort((a, b) => b[1] - a[1])
.map(([v]) => v);
}
impl Solution {
pub fn sort_people(names: Vec<String>, heights: Vec<i32>) -> Vec<String> {
let mut combine: Vec<(String, i32)> = names.into_iter().zip(heights.into_iter()).collect();
combine.sort_by(|a, b| b.1.cmp(&a.1));
combine.iter().map(|s| s.0.clone()).collect()
}
}