CF988A.Diverse Team
入门
通过率:0%
时间限制:1.00s
内存限制:256MB
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题目描述
There are n students in a school class, the rating of the i-th student on Codehorses is ai. You have to form a team consisting of k students (1≤k≤n) such that the ratings of all team members are distinct.
If it is impossible to form a suitable team, print "NO" (without quotes). Otherwise print "YES", and then print k distinct numbers which should be the indices of students in the team you form. If there are multiple answers, print any of them.
班级中有 n 名学生,第 i 名学生在 Codehorses 上的评分为 ai。你需要从中选出 k 名学生(1≤k≤n)组成一个队伍,使得队伍中所有成员的评分互不相同。
如果无法组成满足条件的队伍,则输出 "NO"(不含引号)。否则输出 "YES",然后输出 k 个互不相同的整数,表示你所选队伍中学生的编号(下标)。如果有多种可行方案,输出任意一种即可。
输入格式
The first line contains two integers n and k (1≤k≤n≤100) — the number of students and the size of the team you have to form.
The second line contains n integers a1,a2,…,an (1≤ai≤100), where ai is the rating of i-th student.
第一行包含两个整数 n 和 k(1≤k≤n≤100)—— 分别表示学生的数量以及你需要组建的队伍的规模。
第二行包含 n 个整数 a1,a2,…,an(1≤ai≤100),其中 ai 表示第 i 个学生的评分。
输出格式
If it is impossible to form a suitable team, print "NO" (without quotes). Otherwise print "YES", and then print k distinct integers from 1 to n which should be the indices of students in the team you form. All the ratings of the students in the team should be distinct. You may print the indices in any order. If there are multiple answers, print any of them.
Assume that the students are numbered from 1 to n.
如果无法组成合适的队伍,则输出 "NO"(不带引号)。否则,先输出 "YES",然后输出 k 个互不相同的、取值范围在 1 到 n 之间的整数,这些整数应为你所组成的队伍中学生的编号(下标)。队伍中所有学生的评分必须互不相同。你可以以任意顺序输出这些编号。如果有多种可行答案,输出任意一种即可。
假设学生编号为 1 到 n。
输入输出样例
输入#1
5 3 15 13 15 15 12
输出#1
YES 1 2 5
输入#2
5 4 15 13 15 15 12
输出#2
NO
输入#3
4 4 20 10 40 30
输出#3
YES 1 2 3 4
说明/提示
All possible answers for the first example:
- {1 2 5}
- {2 3 5}
- {2 4 5}
Note that the order does not matter.
第一个示例的所有可能答案:
- {1 2 5}
- {2 3 5}
- {2 4 5}
注意:顺序无关紧要。
输入解题思路,AI测评打分。不知道怎么写?