Getting Started with ACM-eating sweets

Title:

hoj1205-eating sweets-accustomed to the next two candies not the same

Code:

#include <iostream>
using namespace std;

int arr[1000200];

int main ()
{
	int t;
	int n;
	int Val, biggest;
	Long long rest;
	scanf ("%d", &t);
	while (t--)
	{	
		scanf ("%d", &n);
		biggest = 0;
		Rest = 0;
		for (int i=0; i<n; i++)
		{
			scanf ("%d", &val);
			if (Val > Biggest)
			{
				biggest = val;
			}
			else
			{
				rest + = val;
			}
		}
		if (biggest-1 <= rest)
		{
			printf ("yes\n");
		}
		else
		{
			printf ("no\n");
		}
	}
	return 0;
}