#include<bits/stdc++.h> using namespace std; int main() { int t; cin>>t; while(t--&&t>=0) { int n,x; cin>>n>>x; int a[n]; for(int i=0;i<n;i++) { cin>>a[i]; } sort(a,a+n); int k=0,flag=0; int h=n-1; while(k<h) { if(a[k]+a[h]<x) k++; else if(a[k]+a[h]>x) h--; else { flag=1; break; } } if(flag==0) cout<<"NO"<<endl; else cout<<"YES"<<endl; } return 0; } |
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