Distinct Values Subsequences

                                #include<bits/stdc++.h>
using namespace std;
#define INF 2147483647
#define INFL 9223372036854775807
#define pii pair<int,int>
#define F first
#define S second
#define mp make_pair
#define pb push_back
#define ll long long
#define ull unsigned long long
#define M 1000000007
#define FASTIO ios_base::sync_with_stdio(false);cin.tie(NULL); cout.tie(NULL);
#define take(x) scanf("%d",&x)
#define DE(x) printf("\ndebug %d\n",x);
#define vout(x) for(int i=0;i<x.size();i++) printf("%d ",x[i]);
#define pie acos(-1)
#define MOD 998244353


void solve() {
    int n;
    cin>>n;
    int ara[n];
    for(int i=0;i<n;i++){
        cin>>ara[i];
    }
    sort(ara,ara+n);
    int freq = 1;
    long long res = 1;
    for(int i=1;i<n;i++){
        if( ara[i] != ara[i-1] ) {
            res = res * (freq+1);
            res %= M;
            freq = 0;
        }
        freq++;
    }
    res = res * (freq+1);
    res %= M;
    cout<<res-1;
}
int main(){
    solve();
}