func_code_string: #include <bits/stdc++.h>   #define inf 0x3f3f3f3f   #define IOS ios_base::sync_with_stdio(0); cin.tie(0);   #define rep(i, a, n) for(int i = a; i <= n; ++ i)   #define per(i, a, n) for(int i = n; i >= a; -- i)   //#define ONLINE_JUDGE   using namespace std;   typedef long long ll;   const int mod=1e9+7;   template<typename T>void write(T x)   {       if(x<0)       {           putchar( - );           x=-x;       }       if(x>9)       {           write(x/10);       }       putchar(x%10+ 0 );   }      template<typename T> void read(T &x)   {       x = 0;char ch = getchar();ll f = 1;       while(!isdigit(ch)){if(ch ==  - )f*=-1;ch=getchar();}       while(isdigit(ch)){x = x*10+ch-48;ch=getchar();}x*=f;   }      int gcd(int a,int b){return b==0?a:gcd(b,a%b);}   int lcm(int a,int b){return a/gcd(a,b)*b;};   ll ksm(ll a,ll n){    ll ans=1;    while(n){     if(n&1) ans=(ans*a)%mod;     a=a*a%mod;     n>>=1;    }    return ans%mod;   }   //==============================================================   #define int ll   const int maxn=1e3+100;   int t,n,k,a[maxn];   ll cnt[maxn];   map<int,int>need;   ll f[maxn],finv[maxn];   void init(){    f[0]=1;    rep(i,1,maxn-1)f[i]=f[i-1]*i%mod;    finv[maxn-1]=ksm(f[maxn-1],mod-2);    per(i,0,maxn-2){     finv[i]=(finv[i+1]*(i+1))%mod;    }   }   ll C(ll n,ll k){    return (f[n]*finv[n-k]%mod*finv[k]%mod)%mod;   }      signed main()   {    #ifndef ONLINE_JUDGE    freopen( in.txt , r ,stdin);    freopen( out.txt , w ,stdout);    #endif    //clock_t c1 = clock();    //===========================================================    read(t);    init();    while(t--){     need.clear();     read(n),read(k);     rep(i,1,n) read(a[i]);     sort(a+1,a+1+n);     int mx=0;     ll ans=1;     per(i,n-k+1,n)mx+=a[i],need[a[i]]++;     rep(i,1,n)cnt[a[i]]++;     for(auto x:need){      int now=x.first;      int num=x.second;      ans=(ans*C(cnt[now],num))%mod;     }     write(ans%mod),putchar(  n );     fill(cnt,cnt+n+1,0);    }    //===========================================================    //std::cerr <<  Time:  << clock() - c1 <<  ms  << std::endl;    return 0;   }   