90求调(调出来关注)

#include <bits/stdc++.h>
using namespace std;
#define int long long
int n,a[100005],k,en,st,len=-1,last,pre;
map<int,int> mp;
signed main()
{
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin>>n>>k;
	for(int i=1;i<=n;i++)
	{
		cin>>a[i];
		pre=(last+a[i])%k;
		last=pre;
		if(mp.count(pre))
		{
			if(i-mp[pre]>=len)
			{
				len=i-mp[pre];
				st=mp[pre]+1;
				en=i;
			}
		}else mp[pre]=i;
	}
	cout<<len<<endl;
	for(int i=st;i<=en&&len!=-1;i++) cout<<a[i]<<" ";
	return 0;
}