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  1. import java.util.Scanner;
  2.  
  3. public class Main
  4.  
  5. {
  6.  
  7. public static void main(String[] args)
  8.  
  9. {
  10.  
  11.   Scanner kb = new Scanner(System.in);
  12.   int t = kb.nextInt();
  13.   //boolean ans;
  14.   while(t-->0)
  15.   {
  16.       int n = kb.nextInt();
  17.       int m = kb.nextInt();
  18.       if(m<2)
  19.       {
  20.           int x = kb.nextInt();
  21.           int y = kb.nextInt();
  22.           System.out.println("YES");
  23.       }
  24.       else if(m>2)
  25.       {
  26.           for(int i =0;i<m;i++)
  27.           {
  28.               int x = kb.nextInt();
  29.               int y = kb.nextInt();
  30.           }
  31.           System.out.println("NO");
  32.       }
  33.       else if(m==2)
  34.       {
  35.           int x = kb.nextInt();
  36.           int y = kb.nextInt();
  37.           int a = kb.nextInt();
  38.           int b = kb.nextInt();
  39.           if(x==a||y==b||x==b||y==a)
  40.               System.out.println("YES");
  41.           else
  42.               System.out.println("NO");
  43.       }
  44.  
  45.       }
  46.   }
  47.  
  48. }
Runtime error #stdin #stdout #stderr 0.11s 380736KB
comments (?)
stdin 
1
2 0
stdout 
Standard output is empty
stderr 
Exception in thread "main" java.util.NoSuchElementException
	at java.util.Scanner.throwFor(Scanner.java:907)
	at java.util.Scanner.next(Scanner.java:1530)
	at java.util.Scanner.nextInt(Scanner.java:2160)
	at java.util.Scanner.nextInt(Scanner.java:2119)
	at Main.main(Main.java:20)
https://ideone.com/3dTOxk
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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