A_Arithmetic_Array.cpp

#include<bits/stdc++.h>
#include<math.h>

using namespace std;

#define ll long long

int main(){
    int t;
    cin>>t;
    while(t--){
        int n ;
        cin>>n;
        int a[n];
        ll sum = 0;
        for(int i = 0; i<n;i++){
            cin>>a[i];
            sum = sum+a[i];
        }
        if(sum==n){
            cout<<"0"<<endl;
        }
        else if(sum>n){
            cout<<sum-n<<endl;
        }
        else{
            cout<<"1"<<endl;
        }
    }
}