Submission #1186690

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Source Code Expand

import java.util.*;
public class Main {
	static Scanner s = new Scanner(System.in);
	public static void main(String __[]){
		long in[]=new long[s.nextInt()];
		for(int i=0;i<in.length;i++) in[i]=s.nextInt();
		long min=9114514114514114514L;
		for(int i=-100;i<=100;i++) {
			final int v=i;
			min=Math.min(min,
					Arrays.stream(in).parallel()
						.map(o->(o-v)*(o-v))
						.sum()
					);
		}
		System.out.println(min);
	}
}

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