#include <iostream> using namespace std; int a[20]; int main(){ int m; cin>>m; for(int j=1;j<=m;j++) { int n,minn=199; cin>>n; for(int i=0;i<n;i++) { cin>>a[i]; if(a[i]<minn) minn=a[i]; } int secondMin= 200; for(int i=0;i<n;i++) { if( a[i]!=minn && a[i]<secondMin) secondMin =a[i]; } if(secondMin==200) cout<<"NO"<<endl; else cout<<secondMin<<endl; } }