HDU 2304 Electrical Outlets

#include <iostream>
using namespace std;
int main()
{
	int i,j,k,a[233],sum;
	cin>>i;
	while(i--){
		sum=0;
		cin>>j;
		for(int n=0;n<j;n++) cin>>a[n];
		for(int n=0;n<j;n++) sum=sum+a[n]-1;
		sum+=1;
		cout<<sum<<endl;
	} 
	return 0;
 }