FIt to play-time limit exceeded(its a question in easy section)

general
1

import java.io.BufferedReader;

import java.io.InputStreamReader;

class FitToPlay{
public static void main(String args[]) throws Exception{

	//Scanner s=new Scanner(System.in);

	BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

	int T=Integer.parseInt(br.readLine());
	int n=0;

	int small=0;

	int d2=0;

	int d1=0;

	int num=0;

	for(int i=0;i<T;i++){
		n=Integer.parseInt(br.readLine());
		String s[]=br.readLine().split(" ");
	//	for(int k=0;k<n;k++){
	//		System.out.print(s[k]);
	//	}
		for(int j=0;j<n;j++){
			num=Integer.parseInt(s[j]);
			if(j==0)
				small=num;
			else{
				d2=num-small;
			//	System.out.println();
			//	System.out.println(d2);
				if(d2>d1){
					d1=d2;
					//System.out.print("THE CHANGES"+d2);
				}
					
				if(d2<0)
					small=num;
			}
			
			
		}
		
		
		if(d1>0)
			System.out.println(d1);
		else
			System.out.println("UNFIT");
		d1=0;
	}
}

}