codeforeces Round #441B

B. Divisiblity of Differences

time limit per test

1 second

memory limit per test

512 megabytes

input

standard input

output

standard output

You are given a multiset of n integers. You should select exactly k of them in a such way that the difference between any two of them is divisible by m, or tell that it is impossible.

Numbers can be repeated in the original multiset and in the multiset of selected numbers, but number of occurrences of any number in multiset of selected numbers should not exceed the number of its occurrences in the original multiset.

Input

First line contains three integers n, k and m (2 ≤ k ≤ n ≤ 100 000, 1 ≤ m ≤ 100 000) — number of integers in the multiset, number of integers you should select and the required divisor of any pair of selected integers.

Second line contains n integers a1, a2, ..., an (0 ≤ ai ≤ 109) — the numbers in the multiset.

Output

If it is not possible to select k numbers in the desired way, output «No» (without the quotes).

Otherwise, in the first line of output print «Yes» (without the quotes). In the second line print k integers b1, b2, ..., bk — the selected numbers. If there are multiple possible solutions, print any of them.

给你n个数，要求从中选出k个，任意两数之间差模m为0

记录模m余数为i的数个数为f[i]

查找到第一个f[i]=k即可，题目只要求输出任意一组解

#include<cstdio>using namespace std;int n,k,m,a[100001],f[100001];int main(){scanf("%d%d%d",&n,&k,&m);int t=-1;for (int i=1;i<=n;i++){scanf("%d",&a[i]);int x=a[i];x%=m;f[x]++;}for (int i=0;i<m;i++)if (f[i]>=k) {printf("Yes\n");t=i;break;}if (t!=-1) for (int i=1;i<=n&&k>0;i++)if (a[i]%m==t) {k--;printf("%d ",a[i]);}if (t==-1) printf("No");return 0;}