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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		// your code goes here
  13.         Scanner sc = new Scanner(System.in);
  14.         int n = sc.nextInt();
  15.         int e = sc.nextInt();
  16.  
  17.         ArrayList<Integer>[] graph = new ArrayList[n];
  18.         for (int i = 0; i < n; i++) {
  19.             graph[i] = new ArrayList<>();
  20.         }
  21.  
  22.         for (int i = 1; i <= e; i++) {
  23.             int u = sc.nextInt();
  24.             int v = sc.nextInt();
  25.             graph[u].add(v);
  26.             graph[v].add(u);
  27.         }
  28.  
  29.         for (int i = 0; i < n; i++) {
  30.             System.out.println(i + " " + graph[i].size());
  31.         }
  32.         sc.close();
  33. 	}
  34. }
Success #stdin #stdout 0.17s 58844KB
comments (?)
stdin
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5 4 
0 1 
1 2 
2 3 
4 2
stdout
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0 1
1 2
2 3
3 1
4 1
https://ideone.com/AJvm19
language:
Java (HotSpot 12)
created:
9 days ago
visibility:
public

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