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  1. import java.util.Scanner;
  2.  
  3. public class Main{
  4.     public static void main(String[] args){
  5.         Scanner sc = new Scanner(System.in);
  6.         int rn = sc.nextInt();
  7.         int rx=0;
  8.         int ry=0;
  9.         int rz=0;
  10.         for(int i=0;i<rn;i++){
  11.             rx+=sc.nextInt();
  12.             ry+=sc.nextInt();
  13.             rz+=sc.nextInt();
  14.         }
  15.         System.out.println((rx==0 && ry==0 && rz==0)?"YES":"NO");
  16.     }
  17. }
Success #stdin #stdout 0.14s 54652KB
comments (?)
stdin
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3
0 2 -2
1 -1 3
-3 0 0
stdout
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NO
https://ideone.com/70tWjU
language:
Java (HotSpot 12)
created:
30 days ago
visibility:
public

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